Annotated Class List

Qt classes with brief descriptions:

• QAbstractAnimation: The QAbstractAnimation class is the base of all animations.

• QAbstractAnimation: The QAbstractAnimation class is the base of all animations.

• QAbstractButton: The QAbstractButton class is the abstract base class of button widgets, providing functionality common to buttons.

• QAbstractButton: The QAbstractButton class is the abstract base class of button widgets, providing functionality common to buttons.

• QAbstractEventDispatcher: The QAbstractEventDispatcher class provides an interface to manage Qt's event queue.

• QAbstractEventDispatcher: The QAbstractEventDispatcher class provides an interface to manage Qt's event queue.

• QAbstractExtensionFactory: The QAbstractExtensionFactory class provides an interface for extension factories in Qt Designer.

• QAbstractExtensionManager: The QAbstractExtensionManager class provides an interface for extension managers in Qt Designer.

• QAbstractFileIconProvider: The QAbstractFileIconProvider class provides file icons for the QFileSystemModel class.

• QAbstractFileIconProvider: The QAbstractFileIconProvider class provides file icons for the QFileSystemModel class.

• QAbstractFormBuilder: The QAbstractFormBuilder class provides a default implementation for classes that create user interfaces at run-time.

• QAbstractGraphicsShapeItem: The QAbstractGraphicsShapeItem class provides a common base for all path items.

• QAbstractGraphicsShapeItem: The QAbstractGraphicsShapeItem class provides a common base for all path items.

• QAbstractItemDelegate: The QAbstractItemDelegate class is used to display and edit data items from a model.

• QAbstractItemDelegate: The QAbstractItemDelegate class is used to display and edit data items from a model.

• QAbstractItemModel: The QAbstractItemModel class provides the abstract interface for item model classes.

• QAbstractItemModel: The QAbstractItemModel class provides the abstract interface for item model classes.

• QAbstractItemModelTester: The QAbstractItemModelTester class helps testing QAbstractItemModel subclasses.

• QAbstractItemModelTester: The QAbstractItemModelTester class helps testing QAbstractItemModel subclasses.

• QAbstractItemView: The QAbstractItemView class provides the basic functionality for item view classes.

• QAbstractItemView: The QAbstractItemView class provides the basic functionality for item view classes.

• QAbstractListModel: The QAbstractListModel class provides an abstract model that can be subclassed to create one-dimensional list models.

• QAbstractListModel: The QAbstractListModel class provides an abstract model that can be subclassed to create one-dimensional list models.

• QAbstractNativeEventFilter: The QAbstractNativeEventFilter class provides an interface for receiving native events, such as MSG or XCB event structs.

• QAbstractNativeEventFilter: The QAbstractNativeEventFilter class provides an interface for receiving native events, such as MSG or XCB event structs.

• QAbstractNetworkCache: The QAbstractNetworkCache class provides the interface for cache implementations.

• QAbstractNetworkCache: The QAbstractNetworkCache class provides the interface for cache implementations.

• QAbstractOpenGLFunctions: The QAbstractOpenGLFunctions class is the base class of a family of classes that expose all functions for each OpenGL version and profile.

• QAbstractOpenGLFunctions: The QAbstractOpenGLFunctions class is the base class of a family of classes that expose all functions for each OpenGL version and profile.

• QAbstractPrintDialog: The QAbstractPrintDialog class provides a base implementation for print dialogs used to configure printers.

• QAbstractPrintDialog: The QAbstractPrintDialog class provides a base implementation for print dialogs used to configure printers.

• QAbstractProxyModel: The QAbstractProxyModel class provides a base class for proxy item models that can do sorting, filtering or other data processing tasks.

• QAbstractProxyModel: The QAbstractProxyModel class provides a base class for proxy item models that can do sorting, filtering or other data processing tasks.

• QAbstractScrollArea: The QAbstractScrollArea widget provides a scrolling area with on-demand scroll bars.

• QAbstractScrollArea: The QAbstractScrollArea widget provides a scrolling area with on-demand scroll bars.

• QAbstractSlider: The QAbstractSlider class provides an integer value within a range.

• QAbstractSlider: The QAbstractSlider class provides an integer value within a range.

• QAbstractSocket: The QAbstractSocket class provides the base functionality common to all socket types.

• QAbstractSocket: The QAbstractSocket class provides the base functionality common to all socket types.

• QAbstractSpinBox: The QAbstractSpinBox class provides a spinbox and a line edit to display values.

• QAbstractSpinBox: The QAbstractSpinBox class provides a spinbox and a line edit to display values.

• QAbstractTableModel: The QAbstractTableModel class provides an abstract model that can be subclassed to create table models.

• QAbstractTableModel: The QAbstractTableModel class provides an abstract model that can be subclassed to create table models.

• QAbstractTextDocumentLayout: The QAbstractTextDocumentLayout class is an abstract base class used to implement custom layouts for QTextDocuments.

• QAbstractTextDocumentLayout: The QAbstractTextDocumentLayout class is an abstract base class used to implement custom layouts for QTextDocuments.

• QAccessible: The QAccessible class provides enums and static functions related to accessibility.

• QAccessible: The QAccessible class provides enums and static functions related to accessibility.

• QAccessibleActionInterface: The QAccessibleActionInterface class implements support for invocable actions in the interface.

• QAccessibleActionInterface: The QAccessibleActionInterface class implements support for invocable actions in the interface.

• QAccessibleEditableTextInterface: The QAccessibleEditableTextInterface class implements support for objects with editable text.

• QAccessibleEditableTextInterface: The QAccessibleEditableTextInterface class implements support for objects with editable text.

• QAccessibleEvent: The QAccessibleEvent class is the base class for accessibility notifications.

• QAccessibleEvent: The QAccessibleEvent class is the base class for accessibility notifications.

• QAccessibleInterface: The QAccessibleInterface class defines an interface that exposes information about accessible objects.

• QAccessibleInterface: The QAccessibleInterface class defines an interface that exposes information about accessible objects.

• QAccessibleObject: The QAccessibleObject class implements parts of the QAccessibleInterface for QObjects.

• QAccessibleObject: The QAccessibleObject class implements parts of the QAccessibleInterface for QObjects.

• QAccessiblePlugin: The QAccessiblePlugin class provides an abstract base class for plugins provinding accessibility information for user interface elements.

• QAccessiblePlugin: The QAccessiblePlugin class provides an abstract base class for plugins provinding accessibility information for user interface elements.

• QAccessibleStateChangeEvent: The QAccessibleStateChangeEvent notfies the accessibility framework that the state of an object has changed.

• QAccessibleStateChangeEvent: The QAccessibleStateChangeEvent notfies the accessibility framework that the state of an object has changed.

• QAccessibleTableCellInterface: The QAccessibleTableCellInterface class implements support for the IAccessibleTable2 Cell interface.

• QAccessibleTableCellInterface: The QAccessibleTableCellInterface class implements support for the IAccessibleTable2 Cell interface.

• QAccessibleTableInterface: The QAccessibleTableInterface class implements support for the IAccessibleTable2 interface.

• QAccessibleTableInterface: The QAccessibleTableInterface class implements support for the IAccessibleTable2 interface.

• QAccessibleTableModelChangeEvent: The QAccessibleTableModelChangeEvent signifies a change in a table, list, or tree where cells are added or removed. If the change affected a number of rows, firstColumn and lastColumn will return -1. Likewise for columns, the row functions may return -1.

• QAccessibleTableModelChangeEvent: The QAccessibleTableModelChangeEvent signifies a change in a table, list, or tree where cells are added or removed. If the change affected a number of rows, firstColumn and lastColumn will return -1. Likewise for columns, the row functions may return -1.

• QAccessibleTextCursorEvent: The QAccessibleTextCursorEvent class notifies of cursor movements.

• QAccessibleTextCursorEvent: The QAccessibleTextCursorEvent class notifies of cursor movements.

• QAccessibleTextInsertEvent: The QAccessibleTextInsertEvent class notifies of text being inserted.

• QAccessibleTextInsertEvent: The QAccessibleTextInsertEvent class notifies of text being inserted.

• QAccessibleTextInterface: The QAccessibleTextInterface class implements support for text handling.

• QAccessibleTextInterface: The QAccessibleTextInterface class implements support for text handling.

• QAccessibleTextRemoveEvent: The QAccessibleTextRemoveEvent class notifies of text being deleted.

• QAccessibleTextRemoveEvent: The QAccessibleTextRemoveEvent class notifies of text being deleted.

• QAccessibleTextSelectionEvent: QAccessibleTextSelectionEvent signals a change in the text selection of an object.

• QAccessibleTextSelectionEvent: QAccessibleTextSelectionEvent signals a change in the text selection of an object.

• QAccessibleTextUpdateEvent: The QAccessibleTextUpdateEvent class notifies about text changes. This is for accessibles that support editable text such as line edits. This event occurs for example when a portion of selected text gets replaced by pasting a new text or in override mode of editors.

• QAccessibleTextUpdateEvent: The QAccessibleTextUpdateEvent class notifies about text changes. This is for accessibles that support editable text such as line edits. This event occurs for example when a portion of selected text gets replaced by pasting a new text or in override mode of editors.

• QAccessibleValueChangeEvent: The QAccessibleValueChangeEvent describes a change in value for an accessible object.

• QAccessibleValueChangeEvent: The QAccessibleValueChangeEvent describes a change in value for an accessible object.

• QAccessibleValueInterface: The QAccessibleValueInterface class implements support for objects that manipulate a value.

• QAccessibleValueInterface: The QAccessibleValueInterface class implements support for objects that manipulate a value.

• QAccessibleWidget: The QAccessibleWidget class implements the QAccessibleInterface for QWidgets.

• QAccessibleWidget: The QAccessibleWidget class implements the QAccessibleInterface for QWidgets.

• QAction: The QAction class provides an abstraction for user commands that can be added to different user interface components.

• QAction: The QAction class provides an abstraction for user commands that can be added to different user interface components.

• QActionEvent: The QActionEvent class provides an event that is generated when a QAction is added, removed, or changed.

• QActionEvent: The QActionEvent class provides an event that is generated when a QAction is added, removed, or changed.

• QActionGroup: The QActionGroup class groups actions together.

• QActionGroup: The QActionGroup class groups actions together.

• QAdoptSharedDataTag: The QAdoptSharedDataTag is a helper tag class.

• QAdoptSharedDataTag: The QAdoptSharedDataTag is a helper tag class.

• QAnimationGroup: The QAnimationGroup class is an abstract base class for groups of animations.

• QAnimationGroup: The QAnimationGroup class is an abstract base class for groups of animations.

• QAnyStringView: The QAnyStringView class provides a unified view on Latin-1, UTF-8, or UTF-16 strings with a read-only subset of the QString API.

• QAnyStringView: The QAnyStringView class provides a unified view on Latin-1, UTF-8, or UTF-16 strings with a read-only subset of the QString API.

• QApplication: The QApplication class manages the GUI application's control flow and main settings.

• QApplication: The QApplication class manages the GUI application's control flow and main settings.

• QAssociativeIterable: The QAssociativeIterable class is an iterable interface for an associative container in a QVariant.

• QAssociativeIterable: The QAssociativeIterable class is an iterable interface for an associative container in a QVariant.

• QAtomicInt: The QAtomicInt class provides platform-independent atomic operations on int.

• QAtomicInt: The QAtomicInt class provides platform-independent atomic operations on int.

• QAtomicInteger: The QAtomicInteger class provides platform-independent atomic operations on integers.

• QAtomicInteger: The QAtomicInteger class provides platform-independent atomic operations on integers.

• QAtomicPointer: The QAtomicPointer class is a template class that provides platform-independent atomic operations on pointers.

• QAtomicPointer: The QAtomicPointer class is a template class that provides platform-independent atomic operations on pointers.

• QAuthenticator: The QAuthenticator class provides an authentication object.

• QAuthenticator: The QAuthenticator class provides an authentication object.

• QBEInteger: The QBEInteger class provides platform-independent big-endian integers.

• QBEInteger: The QBEInteger class provides platform-independent big-endian integers.

• QBackingStore: The QBackingStore class provides a drawing area for QWindow.

• QBackingStore: The QBackingStore class provides a drawing area for QWindow.

• QBaseIterator:

• QBaseIterator:

• QBasicTimer: The QBasicTimer class provides timer events for objects.

• QBasicTimer: The QBasicTimer class provides timer events for objects.

• QBitArray: The QBitArray class provides an array of bits.

• QBitArray: The QBitArray class provides an array of bits.

• QBitmap: The QBitmap class provides monochrome (1-bit depth) pixmaps.

• QBitmap: The QBitmap class provides monochrome (1-bit depth) pixmaps.

• QBoxLayout: The QBoxLayout class lines up child widgets horizontally or vertically.

• QBoxLayout: The QBoxLayout class lines up child widgets horizontally or vertically.

• QBrush: The QBrush class defines the fill pattern of shapes drawn by QPainter.

• QBrush: The QBrush class defines the fill pattern of shapes drawn by QPainter.

• QBuffer: The QBuffer class provides a QIODevice interface for a QByteArray.

• QBuffer: The QBuffer class provides a QIODevice interface for a QByteArray.

• QButtonGroup: The QButtonGroup class provides a container to organize groups of button widgets.

• QButtonGroup: The QButtonGroup class provides a container to organize groups of button widgets.

• QByteArray: The QByteArray class provides an array of bytes.

• QByteArray: The QByteArray class provides an array of bytes.

• QByteArrayList: The QByteArrayList class provides a list of byte arrays.

• QByteArrayList: The QByteArrayList class provides a list of byte arrays.

• QByteArrayMatcher: The QByteArrayMatcher class holds a sequence of bytes that can be quickly matched in a byte array.

• QByteArrayMatcher: The QByteArrayMatcher class holds a sequence of bytes that can be quickly matched in a byte array.

• QByteArrayView: The QByteArrayView class provides a view on an array of bytes with a read-only subset of the QByteArray API.

• QByteArrayView: The QByteArrayView class provides a view on an array of bytes with a read-only subset of the QByteArray API.

• QCache: The QCache class is a template class that provides a cache.

• QCache: The QCache class is a template class that provides a cache.

• QCalendar: The QCalendar class describes calendar systems.

• QCalendar: The QCalendar class describes calendar systems.

• QCalendarWidget: The QCalendarWidget class provides a monthly based calendar widget allowing the user to select a date.

• QCalendarWidget: The QCalendarWidget class provides a monthly based calendar widget allowing the user to select a date.

• QCborArray: The QCborArray class is used to hold an array of CBOR elements.

• QCborArray: The QCborArray class is used to hold an array of CBOR elements.

• QCborError: The QCborError class holds the error condition found while parsing or validating a CBOR stream.

• QCborError: The QCborError class holds the error condition found while parsing or validating a CBOR stream.

• QCborMap: The QCborMap class is used to hold an associative container representable in CBOR.

• QCborMap: The QCborMap class is used to hold an associative container representable in CBOR.

• QCborParserError: The QCborParserError is used by QCborValue to report a parsing error.

• QCborParserError: The QCborParserError is used by QCborValue to report a parsing error.

• QCborStreamReader: The QCborStreamReader class is a simple CBOR stream decoder, operating on either a QByteArray or QIODevice.

• QCborStreamReader: The QCborStreamReader class is a simple CBOR stream decoder, operating on either a QByteArray or QIODevice.

• QCborStreamWriter: The QCborStreamWriter class is a simple CBOR encoder operating on a one-way stream.

• QCborStreamWriter: The QCborStreamWriter class is a simple CBOR encoder operating on a one-way stream.

• QCborValue: The QCborValue class encapsulates a value in CBOR.

• QCborValue: The QCborValue class encapsulates a value in CBOR.

• QChar: The QChar class provides a 16-bit Unicode character.

• QChar: The QChar class provides a 16-bit Unicode character.

• QCheckBox: The QCheckBox widget provides a checkbox with a text label.

• QCheckBox: The QCheckBox widget provides a checkbox with a text label.

• QChildEvent: The QChildEvent class contains event parameters for child object events.

• QChildEvent: The QChildEvent class contains event parameters for child object events.

• QClipboard: The QClipboard class provides access to the window system clipboard.

• QClipboard: The QClipboard class provides access to the window system clipboard.

• QCloseEvent: The QCloseEvent class contains parameters that describe a close event.

• QCloseEvent: The QCloseEvent class contains parameters that describe a close event.

• QCollator: The QCollator class compares strings according to a localized collation algorithm.

• QCollator: The QCollator class compares strings according to a localized collation algorithm.

• QCollatorSortKey: The QCollatorSortKey class can be used to speed up string collation.

• QCollatorSortKey: The QCollatorSortKey class can be used to speed up string collation.

• QColor: The QColor class provides colors based on RGB, HSV or CMYK values.

• QColor: The QColor class provides colors based on RGB, HSV or CMYK values.

• QColorDialog: The QColorDialog class provides a dialog widget for specifying colors.

• QColorDialog: The QColorDialog class provides a dialog widget for specifying colors.

• QColorSpace: The QColorSpace class provides a color space abstraction.

• QColorSpace: The QColorSpace class provides a color space abstraction.

• QColorTransform: The QColorTransform class is a transformation between color spaces.

• QColorTransform: The QColorTransform class is a transformation between color spaces.

• QColormap: The QColormap class maps device independent QColors to device dependent pixel values.

• QColormap: The QColormap class maps device independent QColors to device dependent pixel values.

• QColumnView: The QColumnView class provides a model/view implementation of a column view.

• QColumnView: The QColumnView class provides a model/view implementation of a column view.

• QComboBox: The QComboBox widget is a combined button and popup list.

• QComboBox: The QComboBox widget is a combined button and popup list.

• QCommandLineOption: The QCommandLineOption class defines a possible command-line option.

• QCommandLineOption: The QCommandLineOption class defines a possible command-line option.

• QCommandLineParser: The QCommandLineParser class provides a means for handling the command line options.

• QCommandLineParser: The QCommandLineParser class provides a means for handling the command line options.

• QCommandLinkButton: The QCommandLinkButton widget provides a Vista style command link button.

• QCommandLinkButton: The QCommandLinkButton widget provides a Vista style command link button.

• QCommonStyle: The QCommonStyle class encapsulates the common Look and Feel of a GUI.

• QCommonStyle: The QCommonStyle class encapsulates the common Look and Feel of a GUI.

• QCompleter: The QCompleter class provides completions based on an item model.

• QCompleter: The QCompleter class provides completions based on an item model.

• QCompressedHelpInfo: The QCompressedHelpInfo class provides access to the details about a compressed help file.

• QConcatenateTablesProxyModel: The QConcatenateTablesProxyModel class proxies multiple source models, concatenating their rows.

• QConcatenateTablesProxyModel: The QConcatenateTablesProxyModel class proxies multiple source models, concatenating their rows.

• QConicalGradient: The QConicalGradient class is used in combination with QBrush to specify a conical gradient brush.

• QConicalGradient: The QConicalGradient class is used in combination with QBrush to specify a conical gradient brush.

• QConstIterator: The QConstIterator allows iteration over a container in a QVariant.

• QConstIterator: The QConstIterator allows iteration over a container in a QVariant.

• QContextMenuEvent: The QContextMenuEvent class contains parameters that describe a context menu event.

• QContextMenuEvent: The QContextMenuEvent class contains parameters that describe a context menu event.

• QContiguousCache: The QContiguousCache class is a template class that provides a contiguous cache.

• QContiguousCache: The QContiguousCache class is a template class that provides a contiguous cache.

• QCoreApplication: The QCoreApplication class provides an event loop for Qt applications without UI.

• QCoreApplication: The QCoreApplication class provides an event loop for Qt applications without UI.

• QCryptographicHash: The QCryptographicHash class provides a way to generate cryptographic hashes.

• QCryptographicHash: The QCryptographicHash class provides a way to generate cryptographic hashes.

• QCursor: The QCursor class provides a mouse cursor with an arbitrary shape.

• QCursor: The QCursor class provides a mouse cursor with an arbitrary shape.

• QDBusAbstractAdaptor: The QDBusAbstractAdaptor class is the base class of D-Bus adaptor classes.

• QDBusAbstractAdaptor: The QDBusAbstractAdaptor class is the base class of D-Bus adaptor classes.

• QDBusAbstractInterface: The QDBusAbstractInterface class is the base class for all D-Bus interfaces in the Qt D-Bus binding, allowing access to remote interfaces.

• QDBusAbstractInterface: The QDBusAbstractInterface class is the base class for all D-Bus interfaces in the Qt D-Bus binding, allowing access to remote interfaces.

• QDBusArgument: The QDBusArgument class is used to marshall and demarshall D-Bus arguments.

• QDBusArgument: The QDBusArgument class is used to marshall and demarshall D-Bus arguments.

• QDBusConnection: The QDBusConnection class represents a connection to the D-Bus bus daemon.

• QDBusConnection: The QDBusConnection class represents a connection to the D-Bus bus daemon.

• QDBusConnectionInterface: The QDBusConnectionInterface class provides access to the D-Bus bus daemon service.

• QDBusConnectionInterface: The QDBusConnectionInterface class provides access to the D-Bus bus daemon service.

• QDBusContext: The QDBusContext class allows slots to determine the D-Bus context of the calls.

• QDBusContext: The QDBusContext class allows slots to determine the D-Bus context of the calls.

• QDBusError: The QDBusError class represents an error received from the D-Bus bus or from remote applications found in the bus.

• QDBusError: The QDBusError class represents an error received from the D-Bus bus or from remote applications found in the bus.

• QDBusInterface: The QDBusInterface class is a proxy for interfaces on remote objects.

• QDBusInterface: The QDBusInterface class is a proxy for interfaces on remote objects.

• QDBusMessage: The QDBusMessage class represents one message sent or received over the D-Bus bus.

• QDBusMessage: The QDBusMessage class represents one message sent or received over the D-Bus bus.

• QDBusObjectPath: The QDBusObjectPath class enables the programmer to identify the OBJECT_PATH type provided by the D-Bus typesystem.

• QDBusObjectPath: The QDBusObjectPath class enables the programmer to identify the OBJECT_PATH type provided by the D-Bus typesystem.

• QDBusPendingCall: The QDBusPendingCall class refers to one pending asynchronous call.

• QDBusPendingCall: The QDBusPendingCall class refers to one pending asynchronous call.

• QDBusPendingCallWatcher: The QDBusPendingCallWatcher class provides a convenient way for waiting for asynchronous replies.

• QDBusPendingCallWatcher: The QDBusPendingCallWatcher class provides a convenient way for waiting for asynchronous replies.

• QDBusPendingReply: The QDBusPendingReply class contains the reply to an asynchronous method call.

• QDBusPendingReply: The QDBusPendingReply class contains the reply to an asynchronous method call.

• QDBusReply: The QDBusReply class stores the reply for a method call to a remote object.

• QDBusReply: The QDBusReply class stores the reply for a method call to a remote object.

• QDBusServer: The QDBusServer class provides peer-to-peer communication between processes on the same computer.

• QDBusServer: The QDBusServer class provides peer-to-peer communication between processes on the same computer.

• QDBusServiceWatcher: The QDBusServiceWatcher class allows the user to watch for a bus service change.

• QDBusServiceWatcher: The QDBusServiceWatcher class allows the user to watch for a bus service change.

• QDBusSignature: The QDBusSignature class enables the programmer to identify the SIGNATURE type provided by the D-Bus typesystem.

• QDBusSignature: The QDBusSignature class enables the programmer to identify the SIGNATURE type provided by the D-Bus typesystem.

• QDBusUnixFileDescriptor: The QDBusUnixFileDescriptor class holds one Unix file descriptor.

• QDBusUnixFileDescriptor: The QDBusUnixFileDescriptor class holds one Unix file descriptor.

• QDBusVariant: The QDBusVariant class enables the programmer to identify the variant type provided by the D-Bus typesystem.

• QDBusVariant: The QDBusVariant class enables the programmer to identify the variant type provided by the D-Bus typesystem.

• QDBusVirtualObject: The QDBusVirtualObject class is used to handle several DBus paths with one class.

• QDBusVirtualObject: The QDBusVirtualObject class is used to handle several DBus paths with one class.

• QDataStream: The QDataStream class provides serialization of binary data to a QIODevice.

• QDataStream: The QDataStream class provides serialization of binary data to a QIODevice.

• QDataWidgetMapper: The QDataWidgetMapper class provides mapping between a section of a data model to widgets.

• QDataWidgetMapper: The QDataWidgetMapper class provides mapping between a section of a data model to widgets.

• QDate: The QDate class provides date functions.

• QDate: The QDate class provides date functions.

• QDateEdit: The QDateEdit class provides a widget for editing dates based on the QDateTimeEdit widget.

• QDateEdit: The QDateEdit class provides a widget for editing dates based on the QDateTimeEdit widget.

• QDateTime: The QDateTime class provides date and time functions.

• QDateTime: The QDateTime class provides date and time functions.

• QDateTimeEdit: The QDateTimeEdit class provides a widget for editing dates and times.

• QDateTimeEdit: The QDateTimeEdit class provides a widget for editing dates and times.

• QDeadlineTimer: The QDeadlineTimer class marks a deadline in the future.

• QDeadlineTimer: The QDeadlineTimer class marks a deadline in the future.

• QDebug: The QDebug class provides an output stream for debugging information.

• QDebug: The QDebug class provides an output stream for debugging information.

• QDebugStateSaver: Convenience class for custom QDebug operators.

• QDebugStateSaver: Convenience class for custom QDebug operators.

• QDesignerActionEditorInterface: The QDesignerActionEditorInterface class allows you to change the focus of Qt Designer's action editor.

• QDesignerContainerExtension: The QDesignerContainerExtension class allows you to add pages to a custom multi-page container in Qt Designer's workspace.

• QDesignerCustomWidgetCollectionInterface: The QDesignerCustomWidgetCollectionInterface class allows you to include several custom widgets in one single library.

• QDesignerCustomWidgetInterface: The QDesignerCustomWidgetInterface class enables Qt Designer to access and construct custom widgets.

• QDesignerDynamicPropertySheetExtension: The QDesignerDynamicPropertySheetExtension class allows you to manipulate a widget's dynamic properties in Qt Designer's property editor.

• QDesignerFormEditorInterface: The QDesignerFormEditorInterface class allows you to access Qt Designer's various components.

• QDesignerFormWindowCursorInterface: The QDesignerFormWindowCursorInterface class allows you to query and modify a form window's widget selection, and in addition modify the properties of all the form's widgets.

• QDesignerFormWindowInterface: The QDesignerFormWindowInterface class allows you to query and manipulate form windows appearing in Qt Designer's workspace.

• QDesignerFormWindowManagerInterface: The QDesignerFormWindowManagerInterface class allows you to manipulate the collection of form windows in Qt Designer, and control Qt Designer's form editing actions.

• QDesignerMemberSheetExtension: The QDesignerMemberSheetExtension class allows you to manipulate a widget's member functions which is displayed when configuring connections using Qt Designer's mode for editing signals and slots.

• QDesignerObjectInspectorInterface: The QDesignerObjectInspectorInterface class allows you to change the focus of Qt Designer's object inspector.

• QDesignerPropertyEditorInterface: The QDesignerPropertyEditorInterface class allows you to query and manipulate the current state of Qt Designer's property editor.

• QDesignerPropertySheetExtension: The QDesignerPropertySheetExtension class allows you to manipulate a widget's properties which is displayed in Qt Designer's property editor.

• QDesignerTaskMenuExtension: The QDesignerTaskMenuExtension class allows you to add custom menu entries to Qt Designer's task menu.

• QDesignerWidgetBoxInterface: The QDesignerWidgetBoxInterface class allows you to control the contents of Qt Designer's widget box.

• QDesktopServices: The QDesktopServices class provides methods for accessing common desktop services.

• QDesktopServices: The QDesktopServices class provides methods for accessing common desktop services.

• QDial: The QDial class provides a rounded range control (like a speedometer or potentiometer).

• QDial: The QDial class provides a rounded range control (like a speedometer or potentiometer).

• QDialog: The QDialog class is the base class of dialog windows.

• QDialog: The QDialog class is the base class of dialog windows.

• QDialogButtonBox: The QDialogButtonBox class is a widget that presents buttons in a layout that is appropriate to the current widget style.

• QDialogButtonBox: The QDialogButtonBox class is a widget that presents buttons in a layout that is appropriate to the current widget style.

• QDir: The QDir class provides access to directory structures and their contents.

• QDir: The QDir class provides access to directory structures and their contents.

• QDirIterator: The QDirIterator class provides an iterator for directory entrylists.

• QDirIterator: The QDirIterator class provides an iterator for directory entrylists.

• QDnsDomainNameRecord: The QDnsDomainNameRecord class stores information about a domain name record.

• QDnsDomainNameRecord: The QDnsDomainNameRecord class stores information about a domain name record.

• QDnsHostAddressRecord: The QDnsHostAddressRecord class stores information about a host address record.

• QDnsHostAddressRecord: The QDnsHostAddressRecord class stores information about a host address record.

• QDnsLookup: The QDnsLookup class represents a DNS lookup.

• QDnsLookup: The QDnsLookup class represents a DNS lookup.

• QDnsMailExchangeRecord: The QDnsMailExchangeRecord class stores information about a DNS MX record.

• QDnsMailExchangeRecord: The QDnsMailExchangeRecord class stores information about a DNS MX record.

• QDnsServiceRecord: The QDnsServiceRecord class stores information about a DNS SRV record.

• QDnsServiceRecord: The QDnsServiceRecord class stores information about a DNS SRV record.

• QDnsTextRecord: The QDnsTextRecord class stores information about a DNS TXT record.

• QDnsTextRecord: The QDnsTextRecord class stores information about a DNS TXT record.

• QDockWidget: The QDockWidget class provides a widget that can be docked inside a QMainWindow or floated as a top-level window on the desktop.

• QDockWidget: The QDockWidget class provides a widget that can be docked inside a QMainWindow or floated as a top-level window on the desktop.

• QDomAttr: The QDomAttr class represents one attribute of a QDomElement.

• QDomAttr: The QDomAttr class represents one attribute of a QDomElement.

• QDomCDATASection: The QDomCDATASection class represents an XML CDATA section.

• QDomCDATASection: The QDomCDATASection class represents an XML CDATA section.

• QDomCharacterData: The QDomCharacterData class represents a generic string in the DOM.

• QDomCharacterData: The QDomCharacterData class represents a generic string in the DOM.

• QDomComment: The QDomComment class represents an XML comment.

• QDomComment: The QDomComment class represents an XML comment.

• QDomDocument: The QDomDocument class represents an XML document.

• QDomDocument: The QDomDocument class represents an XML document.

• QDomDocumentFragment: The QDomDocumentFragment class is a tree of QDomNodes which is not usually a complete QDomDocument.

• QDomDocumentFragment: The QDomDocumentFragment class is a tree of QDomNodes which is not usually a complete QDomDocument.

• QDomDocumentType: The QDomDocumentType class is the representation of the DTD in the document tree.

• QDomDocumentType: The QDomDocumentType class is the representation of the DTD in the document tree.

• QDomElement: The QDomElement class represents one element in the DOM tree.

• QDomElement: The QDomElement class represents one element in the DOM tree.

• QDomEntity: The QDomEntity class represents an XML entity.

• QDomEntity: The QDomEntity class represents an XML entity.

• QDomEntityReference: The QDomEntityReference class represents an XML entity reference.

• QDomEntityReference: The QDomEntityReference class represents an XML entity reference.

• QDomImplementation: The QDomImplementation class provides information about the features of the DOM implementation.

• QDomImplementation: The QDomImplementation class provides information about the features of the DOM implementation.

• QDomNamedNodeMap: The QDomNamedNodeMap class contains a collection of nodes that can be accessed by name.

• QDomNamedNodeMap: The QDomNamedNodeMap class contains a collection of nodes that can be accessed by name.

• QDomNode: The QDomNode class is the base class for all the nodes in a DOM tree.

• QDomNode: The QDomNode class is the base class for all the nodes in a DOM tree.

• QDomNodeList: The QDomNodeList class is a list of QDomNode objects.

• QDomNodeList: The QDomNodeList class is a list of QDomNode objects.

• QDomNotation: The QDomNotation class represents an XML notation.

• QDomNotation: The QDomNotation class represents an XML notation.

• QDomProcessingInstruction: The QDomProcessingInstruction class represents an XML processing instruction.

• QDomProcessingInstruction: The QDomProcessingInstruction class represents an XML processing instruction.

• QDomText: The QDomText class represents text data in the parsed XML document.

• QDomText: The QDomText class represents text data in the parsed XML document.

• QDoubleSpinBox: The QDoubleSpinBox class provides a spin box widget that takes doubles.

• QDoubleSpinBox: The QDoubleSpinBox class provides a spin box widget that takes doubles.

• QDoubleValidator: The QDoubleValidator class provides range checking of floating-point numbers.

• QDoubleValidator: The QDoubleValidator class provides range checking of floating-point numbers.

• QDrag: The QDrag class provides support for MIME-based drag and drop data transfer.

• QDrag: The QDrag class provides support for MIME-based drag and drop data transfer.

• QDragEnterEvent: The QDragEnterEvent class provides an event which is sent to a widget when a drag and drop action enters it.

• QDragEnterEvent: The QDragEnterEvent class provides an event which is sent to a widget when a drag and drop action enters it.

• QDragLeaveEvent: The QDragLeaveEvent class provides an event that is sent to a widget when a drag and drop action leaves it.

• QDragLeaveEvent: The QDragLeaveEvent class provides an event that is sent to a widget when a drag and drop action leaves it.

• QDragMoveEvent: The QDragMoveEvent class provides an event which is sent while a drag and drop action is in progress.

• QDragMoveEvent: The QDragMoveEvent class provides an event which is sent while a drag and drop action is in progress.

• QDropEvent: The QDropEvent class provides an event which is sent when a drag and drop action is completed.

• QDropEvent: The QDropEvent class provides an event which is sent when a drag and drop action is completed.

• QDtls: This class provides encryption for UDP sockets.

• QDtls: This class provides encryption for UDP sockets.

• QDtlsClientVerifier: This class implements server-side DTLS cookie generation and verification.

• QDtlsClientVerifier: This class implements server-side DTLS cookie generation and verification.

• QDynamicPropertyChangeEvent: The QDynamicPropertyChangeEvent class contains event parameters for dynamic property change events.

• QDynamicPropertyChangeEvent: The QDynamicPropertyChangeEvent class contains event parameters for dynamic property change events.

• QEasingCurve: The QEasingCurve class provides easing curves for controlling animation.

• QEasingCurve: The QEasingCurve class provides easing curves for controlling animation.

• QElapsedTimer: The QElapsedTimer class provides a fast way to calculate elapsed times.

• QElapsedTimer: The QElapsedTimer class provides a fast way to calculate elapsed times.

• QEnableSharedFromThis: A base class that allows obtaining a QSharedPointer for an object already managed by a shared pointer.

• QEnableSharedFromThis: A base class that allows obtaining a QSharedPointer for an object already managed by a shared pointer.

• QEnterEvent: The QEnterEvent class contains parameters that describe an enter event.

• QEnterEvent: The QEnterEvent class contains parameters that describe an enter event.

• QErrorMessage: The QErrorMessage class provides an error message display dialog.

• QErrorMessage: The QErrorMessage class provides an error message display dialog.

• QEvent: The QEvent class is the base class of all event classes. Event objects contain event parameters.

• QEvent: The QEvent class is the base class of all event classes. Event objects contain event parameters.

• QEventLoop: The QEventLoop class provides a means of entering and leaving an event loop.

• QEventLoop: The QEventLoop class provides a means of entering and leaving an event loop.

• QEventLoopLocker: The QEventLoopLocker class provides a means to quit an event loop when it is no longer needed.

• QEventLoopLocker: The QEventLoopLocker class provides a means to quit an event loop when it is no longer needed.

• QEventPoint: The QEventPoint class provides information about a point in a QPointerEvent.

• QEventPoint: The QEventPoint class provides information about a point in a QPointerEvent.

• QException: The QException class provides a base class for exceptions that can be transferred across threads.

• QException: The QException class provides a base class for exceptions that can be transferred across threads.

• QExplicitlySharedDataPointer: The QExplicitlySharedDataPointer class represents a pointer to an explicitly shared object.

• QExplicitlySharedDataPointer: The QExplicitlySharedDataPointer class represents a pointer to an explicitly shared object.

• QExposeEvent: The QExposeEvent class contains event parameters for expose events.

• QExposeEvent: The QExposeEvent class contains event parameters for expose events.

• QExtensionFactory: The QExtensionFactory class allows you to create a factory that is able to make instances of custom extensions in Qt Designer.

• QExtensionManager: The QExtensionManager class provides extension management facilities for Qt Designer.

• QFile: The QFile class provides an interface for reading from and writing to files.

• QFile: The QFile class provides an interface for reading from and writing to files.

• QFileDevice: The QFileDevice class provides an interface for reading from and writing to open files.

• QFileDevice: The QFileDevice class provides an interface for reading from and writing to open files.

• QFileDialog: The QFileDialog class provides a dialog that allow users to select files or directories.

• QFileDialog: The QFileDialog class provides a dialog that allow users to select files or directories.

• QFileIconProvider: The QFileIconProvider class provides file icons for the QFileSystemModel class.

• QFileIconProvider: The QFileIconProvider class provides file icons for the QFileSystemModel class.

• QFileInfo: The QFileInfo class provides system-independent file information.

• QFileInfo: The QFileInfo class provides system-independent file information.

• QFileOpenEvent: The QFileOpenEvent class provides an event that will be sent when there is a request to open a file or a URL.

• QFileOpenEvent: The QFileOpenEvent class provides an event that will be sent when there is a request to open a file or a URL.

• QFileSelector: QFileSelector provides a convenient way of selecting file variants.

• QFileSelector: QFileSelector provides a convenient way of selecting file variants.

• QFileSystemModel: The QFileSystemModel class provides a data model for the local filesystem.

• QFileSystemModel: The QFileSystemModel class provides a data model for the local filesystem.

• QFileSystemWatcher: The QFileSystemWatcher class provides an interface for monitoring files and directories for modifications.

• QFileSystemWatcher: The QFileSystemWatcher class provides an interface for monitoring files and directories for modifications.

• QFlag: The QFlag class is a helper data type for QFlags.

• QFlag: The QFlag class is a helper data type for QFlags.

• QFlags: The QFlags class provides a type-safe way of storing OR-combinations of enum values.

• QFlags: The QFlags class provides a type-safe way of storing OR-combinations of enum values.

• QFocusEvent: The QFocusEvent class contains event parameters for widget focus events.

• QFocusEvent: The QFocusEvent class contains event parameters for widget focus events.

• QFocusFrame: The QFocusFrame widget provides a focus frame which can be outside of a widget's normal paintable area.

• QFocusFrame: The QFocusFrame widget provides a focus frame which can be outside of a widget's normal paintable area.

• QFont: The QFont class specifies a query for a font used for drawing text.

• QFont: The QFont class specifies a query for a font used for drawing text.

• QFontComboBox: The QFontComboBox widget is a combobox that lets the user select a font family.

• QFontComboBox: The QFontComboBox widget is a combobox that lets the user select a font family.

• QFontDatabase: The QFontDatabase class provides information about the fonts available in the underlying window system.

• QFontDatabase: The QFontDatabase class provides information about the fonts available in the underlying window system.

• QFontDialog: The QFontDialog class provides a dialog widget for selecting a font.

• QFontDialog: The QFontDialog class provides a dialog widget for selecting a font.

• QFontInfo: The QFontInfo class provides general information about fonts.

• QFontInfo: The QFontInfo class provides general information about fonts.

• QFontMetrics: The QFontMetrics class provides font metrics information.

• QFontMetrics: The QFontMetrics class provides font metrics information.

• QFontMetricsF: The QFontMetricsF class provides font metrics information.

• QFontMetricsF: The QFontMetricsF class provides font metrics information.

• QFormBuilder: The QFormBuilder class is used to dynamically construct user interfaces from UI files at run-time.

• QFormLayout: The QFormLayout class manages forms of input widgets and their associated labels.

• QFormLayout: The QFormLayout class manages forms of input widgets and their associated labels.

• QFrame: The QFrame class is the base class of widgets that can have a frame.

• QFrame: The QFrame class is the base class of widgets that can have a frame.

• QFuture: The QFuture class represents the result of an asynchronous computation.

• QFuture: The QFuture class represents the result of an asynchronous computation.

• QFutureIterator: The QFutureIterator class provides a Java-style const iterator for QFuture.

• QFutureIterator: The QFutureIterator class provides a Java-style const iterator for QFuture.

• QFutureSynchronizer: The QFutureSynchronizer class is a convenience class that simplifies QFuture synchronization.

• QFutureSynchronizer: The QFutureSynchronizer class is a convenience class that simplifies QFuture synchronization.

• QFutureWatcher: The QFutureWatcher class allows monitoring a QFuture using signals and slots.

• QFutureWatcher: The QFutureWatcher class allows monitoring a QFuture using signals and slots.

• QGenericArgument: The QGenericArgument class is an internal helper class for marshalling arguments.

• QGenericArgument: The QGenericArgument class is an internal helper class for marshalling arguments.

• QGenericMatrix: The QGenericMatrix class is a template class that represents a NxM transformation matrix with N columns and M rows.

• QGenericMatrix: The QGenericMatrix class is a template class that represents a NxM transformation matrix with N columns and M rows.

• QGenericPlugin: The QGenericPlugin class is an abstract base class for plugins.

• QGenericPlugin: The QGenericPlugin class is an abstract base class for plugins.

• QGenericPluginFactory: The QGenericPluginFactory class creates plugin drivers.

• QGenericPluginFactory: The QGenericPluginFactory class creates plugin drivers.

• QGenericReturnArgument: The QGenericReturnArgument class is an internal helper class for marshalling arguments.

• QGenericReturnArgument: The QGenericReturnArgument class is an internal helper class for marshalling arguments.

• QGesture: The QGesture class represents a gesture, containing properties that describe the corresponding user input.

• QGesture: The QGesture class represents a gesture, containing properties that describe the corresponding user input.

• QGestureEvent: The QGestureEvent class provides the description of triggered gestures.

• QGestureEvent: The QGestureEvent class provides the description of triggered gestures.

• QGestureRecognizer: The QGestureRecognizer class provides the infrastructure for gesture recognition.

• QGestureRecognizer: The QGestureRecognizer class provides the infrastructure for gesture recognition.

• QGlobalStatic: The QGlobalStatic class is used to implement a global static object.

• QGlobalStatic: The QGlobalStatic class is used to implement a global static object.

• QGlyphRun: The QGlyphRun class provides direct access to the internal glyphs in a font.

• QGlyphRun: The QGlyphRun class provides direct access to the internal glyphs in a font.

• QGradient: The QGradient class is used in combination with QBrush to specify gradient fills.

• QGradient: The QGradient class is used in combination with QBrush to specify gradient fills.

• QGraphicsAnchor: The QGraphicsAnchor class represents an anchor between two items in a QGraphicsAnchorLayout.

• QGraphicsAnchor: The QGraphicsAnchor class represents an anchor between two items in a QGraphicsAnchorLayout.

• QGraphicsAnchorLayout: The QGraphicsAnchorLayout class provides a layout where one can anchor widgets together in Graphics View.

• QGraphicsAnchorLayout: The QGraphicsAnchorLayout class provides a layout where one can anchor widgets together in Graphics View.

• QGraphicsBlurEffect: The QGraphicsBlurEffect class provides a blur effect.

• QGraphicsBlurEffect: The QGraphicsBlurEffect class provides a blur effect.

• QGraphicsColorizeEffect: The QGraphicsColorizeEffect class provides a colorize effect.

• QGraphicsColorizeEffect: The QGraphicsColorizeEffect class provides a colorize effect.

• QGraphicsDropShadowEffect: The QGraphicsDropShadowEffect class provides a drop shadow effect.

• QGraphicsDropShadowEffect: The QGraphicsDropShadowEffect class provides a drop shadow effect.

• QGraphicsEffect: The QGraphicsEffect class is the base class for all graphics effects.

• QGraphicsEffect: The QGraphicsEffect class is the base class for all graphics effects.

• QGraphicsEllipseItem: The QGraphicsEllipseItem class provides an ellipse item that you can add to a QGraphicsScene.

• QGraphicsEllipseItem: The QGraphicsEllipseItem class provides an ellipse item that you can add to a QGraphicsScene.

• QGraphicsGridLayout: The QGraphicsGridLayout class provides a grid layout for managing widgets in Graphics View.

• QGraphicsGridLayout: The QGraphicsGridLayout class provides a grid layout for managing widgets in Graphics View.

• QGraphicsItem: The QGraphicsItem class is the base class for all graphical items in a QGraphicsScene.

• QGraphicsItem: The QGraphicsItem class is the base class for all graphical items in a QGraphicsScene.

• QGraphicsItemGroup: The QGraphicsItemGroup class provides a container that treats a group of items as a single item.

• QGraphicsItemGroup: The QGraphicsItemGroup class provides a container that treats a group of items as a single item.

• QGraphicsLayout: The QGraphicsLayout class provides the base class for all layouts in Graphics View.

• QGraphicsLayout: The QGraphicsLayout class provides the base class for all layouts in Graphics View.

• QGraphicsLayoutItem: The QGraphicsLayoutItem class can be inherited to allow your custom items to be managed by layouts.

• QGraphicsLayoutItem: The QGraphicsLayoutItem class can be inherited to allow your custom items to be managed by layouts.

• QGraphicsLineItem: The QGraphicsLineItem class provides a line item that you can add to a QGraphicsScene.

• QGraphicsLineItem: The QGraphicsLineItem class provides a line item that you can add to a QGraphicsScene.

• QGraphicsLinearLayout: The QGraphicsLinearLayout class provides a horizontal or vertical layout for managing widgets in Graphics View.

• QGraphicsLinearLayout: The QGraphicsLinearLayout class provides a horizontal or vertical layout for managing widgets in Graphics View.

• QGraphicsObject: The QGraphicsObject class provides a base class for all graphics items that require signals, slots and properties.

• QGraphicsObject: The QGraphicsObject class provides a base class for all graphics items that require signals, slots and properties.

• QGraphicsOpacityEffect: The QGraphicsOpacityEffect class provides an opacity effect.

• QGraphicsOpacityEffect: The QGraphicsOpacityEffect class provides an opacity effect.

• QGraphicsPathItem: The QGraphicsPathItem class provides a path item that you can add to a QGraphicsScene.

• QGraphicsPathItem: The QGraphicsPathItem class provides a path item that you can add to a QGraphicsScene.

• QGraphicsPixmapItem: The QGraphicsPixmapItem class provides a pixmap item that you can add to a QGraphicsScene.

• QGraphicsPixmapItem: The QGraphicsPixmapItem class provides a pixmap item that you can add to a QGraphicsScene.

• QGraphicsPolygonItem: The QGraphicsPolygonItem class provides a polygon item that you can add to a QGraphicsScene.

• QGraphicsPolygonItem: The QGraphicsPolygonItem class provides a polygon item that you can add to a QGraphicsScene.

• QGraphicsProxyWidget: The QGraphicsProxyWidget class provides a proxy layer for embedding a QWidget in a QGraphicsScene.

• QGraphicsProxyWidget: The QGraphicsProxyWidget class provides a proxy layer for embedding a QWidget in a QGraphicsScene.

• QGraphicsRectItem: The QGraphicsRectItem class provides a rectangle item that you can add to a QGraphicsScene.

• QGraphicsRectItem: The QGraphicsRectItem class provides a rectangle item that you can add to a QGraphicsScene.

• QGraphicsRotation: The QGraphicsRotation class provides a rotation transformation around a given axis.

• QGraphicsRotation: The QGraphicsRotation class provides a rotation transformation around a given axis.

• QGraphicsScale: The QGraphicsScale class provides a scale transformation.

• QGraphicsScale: The QGraphicsScale class provides a scale transformation.

• QGraphicsScene: The QGraphicsScene class provides a surface for managing a large number of 2D graphical items.

• QGraphicsScene: The QGraphicsScene class provides a surface for managing a large number of 2D graphical items.

• QGraphicsSceneContextMenuEvent: The QGraphicsSceneContextMenuEvent class provides context menu events in the graphics view framework.

• QGraphicsSceneContextMenuEvent: The QGraphicsSceneContextMenuEvent class provides context menu events in the graphics view framework.

• QGraphicsSceneDragDropEvent: The QGraphicsSceneDragDropEvent class provides events for drag and drop in the graphics view framework.

• QGraphicsSceneDragDropEvent: The QGraphicsSceneDragDropEvent class provides events for drag and drop in the graphics view framework.

• QGraphicsSceneEvent: The QGraphicsSceneEvent class provides a base class for all graphics view related events.

• QGraphicsSceneEvent: The QGraphicsSceneEvent class provides a base class for all graphics view related events.

• QGraphicsSceneHelpEvent: The QGraphicsSceneHelpEvent class provides events when a tooltip is requested.

• QGraphicsSceneHelpEvent: The QGraphicsSceneHelpEvent class provides events when a tooltip is requested.

• QGraphicsSceneHoverEvent: The QGraphicsSceneHoverEvent class provides hover events in the graphics view framework.

• QGraphicsSceneHoverEvent: The QGraphicsSceneHoverEvent class provides hover events in the graphics view framework.

• QGraphicsSceneMouseEvent: The QGraphicsSceneMouseEvent class provides mouse events in the graphics view framework.

• QGraphicsSceneMouseEvent: The QGraphicsSceneMouseEvent class provides mouse events in the graphics view framework.

• QGraphicsSceneMoveEvent: The QGraphicsSceneMoveEvent class provides events for widget moving in the graphics view framework.

• QGraphicsSceneMoveEvent: The QGraphicsSceneMoveEvent class provides events for widget moving in the graphics view framework.

• QGraphicsSceneResizeEvent: The QGraphicsSceneResizeEvent class provides events for widget resizing in the graphics view framework.

• QGraphicsSceneResizeEvent: The QGraphicsSceneResizeEvent class provides events for widget resizing in the graphics view framework.

• QGraphicsSceneWheelEvent: The QGraphicsSceneWheelEvent class provides wheel events in the graphics view framework.

• QGraphicsSceneWheelEvent: The QGraphicsSceneWheelEvent class provides wheel events in the graphics view framework.

• QGraphicsSimpleTextItem: The QGraphicsSimpleTextItem class provides a simple text path item that you can add to a QGraphicsScene.

• QGraphicsSimpleTextItem: The QGraphicsSimpleTextItem class provides a simple text path item that you can add to a QGraphicsScene.

• QGraphicsSvgItem: The QGraphicsSvgItem class is a QGraphicsItem that can be used to render the contents of SVG files.

• QGraphicsTextItem: The QGraphicsTextItem class provides a text item that you can add to a QGraphicsScene to display formatted text.

• QGraphicsTextItem: The QGraphicsTextItem class provides a text item that you can add to a QGraphicsScene to display formatted text.

• QGraphicsTransform: The QGraphicsTransform class is an abstract base class for building advanced transformations on QGraphicsItems.

• QGraphicsTransform: The QGraphicsTransform class is an abstract base class for building advanced transformations on QGraphicsItems.

• QGraphicsView: The QGraphicsView class provides a widget for displaying the contents of a QGraphicsScene.

• QGraphicsView: The QGraphicsView class provides a widget for displaying the contents of a QGraphicsScene.

• QGraphicsWidget: The QGraphicsWidget class is the base class for all widget items in a QGraphicsScene.

• QGraphicsWidget: The QGraphicsWidget class is the base class for all widget items in a QGraphicsScene.

• QGregorianCalendar: The QGregorianCalendar class implements the Gregorian calendar.

• QGregorianCalendar: The QGregorianCalendar class implements the Gregorian calendar.

• QGridLayout: The QGridLayout class lays out widgets in a grid.

• QGridLayout: The QGridLayout class lays out widgets in a grid.

• QGroupBox: The QGroupBox widget provides a group box frame with a title.

• QGroupBox: The QGroupBox widget provides a group box frame with a title.

• QGuiApplication: The QGuiApplication class manages the GUI application's control flow and main settings.

• QGuiApplication: The QGuiApplication class manages the GUI application's control flow and main settings.

• QHBoxLayout: The QHBoxLayout class lines up widgets horizontally.

• QHBoxLayout: The QHBoxLayout class lines up widgets horizontally.

• QHash: The QHash class is a template class that provides a hash-table-based dictionary.

• QHash: The QHash class is a template class that provides a hash-table-based dictionary.

• QHashIterator: The QHashIterator class provides a Java-style const iterator for QHash and QMultiHash.

• QHashIterator: The QHashIterator class provides a Java-style const iterator for QHash and QMultiHash.

• QHeaderView: The QHeaderView class provides a header row or header column for item views.

• QHeaderView: The QHeaderView class provides a header row or header column for item views.

• QHelpContentItem: The QHelpContentItem class provides an item for use with QHelpContentModel.

• QHelpContentModel: The QHelpContentModel class provides a model that supplies content to views.

• QHelpContentWidget: The QHelpContentWidget class provides a tree view for displaying help content model items.

• QHelpEngine: The QHelpEngine class provides access to contents and indices of the help engine.

• QHelpEngineCore: The QHelpEngineCore class provides the core functionality of the help system.

• QHelpEvent: The QHelpEvent class provides an event that is used to request helpful information about a particular point in a widget.

• QHelpEvent: The QHelpEvent class provides an event that is used to request helpful information about a particular point in a widget.

• QHelpFilterData: The QHelpFilterData class provides details for the filters used by QHelpFilterEngine.

• QHelpFilterEngine: The QHelpFilterEngine class provides a filtered view of the help contents.

• QHelpFilterSettingsWidget: The QHelpFilterSettingsWidget class provides a widget that allows for creating, editing and removing filters.

• QHelpIndexModel: The QHelpIndexModel class provides a model that supplies index keywords to views.

• QHelpIndexWidget: The QHelpIndexWidget class provides a list view displaying the QHelpIndexModel.

• QHelpLink: The QHelpLink struct provides the data associated with a help link.

• QHelpSearchEngine: The QHelpSearchEngine class provides access to widgets reusable to integrate fulltext search as well as to index and search documentation.

• QHelpSearchQueryWidget: The QHelpSearchQueryWidget class provides a simple line edit or an advanced widget to enable the user to input a search term in a standardized input mask.

• QHelpSearchResult: The QHelpSearchResult class provides the data associated with the search result.

• QHelpSearchResultWidget: The QHelpSearchResultWidget class provides a text browser to display search results.

• QHideEvent: The QHideEvent class provides an event which is sent after a widget is hidden.

• QHideEvent: The QHideEvent class provides an event which is sent after a widget is hidden.

• QHostAddress: The QHostAddress class provides an IP address.

• QHostAddress: The QHostAddress class provides an IP address.

• QHostInfo: The QHostInfo class provides static functions for host name lookups.

• QHostInfo: The QHostInfo class provides static functions for host name lookups.

• QHoverEvent: The QHoverEvent class contains parameters that describe a mouse event.

• QHoverEvent: The QHoverEvent class contains parameters that describe a mouse event.

• QHstsPolicy: The QHstsPolicy class specifies that a host supports HTTP Strict Transport Security policy (HSTS).

• QHstsPolicy: The QHstsPolicy class specifies that a host supports HTTP Strict Transport Security policy (HSTS).

• QHttp2Configuration: The QHttp2Configuration class controls HTTP/2 parameters and settings.

• QHttp2Configuration: The QHttp2Configuration class controls HTTP/2 parameters and settings.

• QHttpMultiPart: The QHttpMultiPart class resembles a MIME multipart message to be sent over HTTP.

• QHttpMultiPart: The QHttpMultiPart class resembles a MIME multipart message to be sent over HTTP.

• QHttpPart: The QHttpPart class holds a body part to be used inside a HTTP multipart MIME message.

• QHttpPart: The QHttpPart class holds a body part to be used inside a HTTP multipart MIME message.

• QIODevice: The QIODevice class is the base interface class of all I/O devices in Qt.

• QIODevice: The QIODevice class is the base interface class of all I/O devices in Qt.

• QIODeviceBase: Base class for QIODevice that provides flags describing the mode in which a device is opened.

• QIODeviceBase: Base class for QIODevice that provides flags describing the mode in which a device is opened.

• QIcon: The QIcon class provides scalable icons in different modes and states.

• QIcon: The QIcon class provides scalable icons in different modes and states.

• QIconDragEvent: The QIconDragEvent class indicates that a main icon drag has begun.

• QIconDragEvent: The QIconDragEvent class indicates that a main icon drag has begun.

• QIconEngine: The QIconEngine class provides an abstract base class for QIcon renderers.

• QIconEngine: The QIconEngine class provides an abstract base class for QIcon renderers.

• QIconEnginePlugin: The QIconEnginePlugin class provides an abstract base for custom QIconEngine plugins.

• QIconEnginePlugin: The QIconEnginePlugin class provides an abstract base for custom QIconEngine plugins.

• QIdentityProxyModel: The QIdentityProxyModel class proxies its source model unmodified.

• QIdentityProxyModel: The QIdentityProxyModel class proxies its source model unmodified.

• QImage: The QImage class provides a hardware-independent image representation that allows direct access to the pixel data, and can be used as a paint device.

• QImage: The QImage class provides a hardware-independent image representation that allows direct access to the pixel data, and can be used as a paint device.

• QImageIOHandler: The QImageIOHandler class defines the common image I/O interface for all image formats in Qt.

• QImageIOHandler: The QImageIOHandler class defines the common image I/O interface for all image formats in Qt.

• QImageIOPlugin: The QImageIOPlugin class defines an interface for writing an image format plugin.

• QImageIOPlugin: The QImageIOPlugin class defines an interface for writing an image format plugin.

• QImageReader: The QImageReader class provides a format independent interface for reading images from files or other devices.

• QImageReader: The QImageReader class provides a format independent interface for reading images from files or other devices.

• QImageWriter: The QImageWriter class provides a format independent interface for writing images to files or other devices.

• QImageWriter: The QImageWriter class provides a format independent interface for writing images to files or other devices.

• QInputDevice: The QInputDevice class describes a device from which a QInputEvent originates.

• QInputDevice: The QInputDevice class describes a device from which a QInputEvent originates.

• QInputDialog: The QInputDialog class provides a simple convenience dialog to get a single value from the user.

• QInputDialog: The QInputDialog class provides a simple convenience dialog to get a single value from the user.

• QInputEvent: The QInputEvent class is the base class for events that describe user input.

• QInputEvent: The QInputEvent class is the base class for events that describe user input.

• QInputMethod: The QInputMethod class provides access to the active text input method.

• QInputMethod: The QInputMethod class provides access to the active text input method.

• QInputMethodEvent: The QInputMethodEvent class provides parameters for input method events.

• QInputMethodEvent: The QInputMethodEvent class provides parameters for input method events.

• QInputMethodQueryEvent: The QInputMethodQueryEvent class provides an event sent by the input context to input objects.

• QInputMethodQueryEvent: The QInputMethodQueryEvent class provides an event sent by the input context to input objects.

• QIntValidator: The QIntValidator class provides a validator that ensures a string contains a valid integer within a specified range.

• QIntValidator: The QIntValidator class provides a validator that ensures a string contains a valid integer within a specified range.

• QItemDelegate: The QItemDelegate class provides display and editing facilities for data items from a model.

• QItemDelegate: The QItemDelegate class provides display and editing facilities for data items from a model.

• QItemEditorCreator: The QItemEditorCreator class makes it possible to create item editor creator bases without subclassing QItemEditorCreatorBase.

• QItemEditorCreator: The QItemEditorCreator class makes it possible to create item editor creator bases without subclassing QItemEditorCreatorBase.

• QItemEditorCreatorBase: The QItemEditorCreatorBase class provides an abstract base class that must be subclassed when implementing new item editor creators.

• QItemEditorCreatorBase: The QItemEditorCreatorBase class provides an abstract base class that must be subclassed when implementing new item editor creators.

• QItemEditorFactory: The QItemEditorFactory class provides widgets for editing item data in views and delegates.

• QItemEditorFactory: The QItemEditorFactory class provides widgets for editing item data in views and delegates.

• QItemSelection: The QItemSelection class manages information about selected items in a model.

• QItemSelection: The QItemSelection class manages information about selected items in a model.

• QItemSelectionModel: The QItemSelectionModel class keeps track of a view's selected items.

• QItemSelectionModel: The QItemSelectionModel class keeps track of a view's selected items.

• QItemSelectionRange: The QItemSelectionRange class manages information about a range of selected items in a model.

• QItemSelectionRange: The QItemSelectionRange class manages information about a range of selected items in a model.

• QIterable: QIterable is a template class that is the base class for QSequentialIterable and QAssociativeIterable.

• QIterable: QIterable is a template class that is the base class for QSequentialIterable and QAssociativeIterable.

• QIterator: The QIterator is a template class that allows iteration over a container in a QVariant.

• QIterator: The QIterator is a template class that allows iteration over a container in a QVariant.

• QJSEngine: The QJSEngine class provides an environment for evaluating JavaScript code.

• QJSEngine: The QJSEngine class provides an environment for evaluating JavaScript code.

• QJSValue: The QJSValue class acts as a container for Qt/JavaScript data types.

• QJSValue: The QJSValue class acts as a container for Qt/JavaScript data types.

• QJSValueIterator: The QJSValueIterator class provides a Java-style iterator for QJSValue.

• QJSValueIterator: The QJSValueIterator class provides a Java-style iterator for QJSValue.

• QJalaliCalendar: The QJalaliCalendar class provides Jalali (Hijri Shamsi) calendar system implementation.

• QJalaliCalendar: The QJalaliCalendar class provides Jalali (Hijri Shamsi) calendar system implementation.

• QJsonArray: The QJsonArray class encapsulates a JSON array.

• QJsonArray: The QJsonArray class encapsulates a JSON array.

• QJsonDocument: The QJsonDocument class provides a way to read and write JSON documents.

• QJsonDocument: The QJsonDocument class provides a way to read and write JSON documents.

• QJsonObject: The QJsonObject class encapsulates a JSON object.

• QJsonObject: The QJsonObject class encapsulates a JSON object.

• QJsonParseError: The QJsonParseError class is used to report errors during JSON parsing.

• QJsonParseError: The QJsonParseError class is used to report errors during JSON parsing.

• QJsonValue: The QJsonValue class encapsulates a value in JSON.

• QJsonValue: The QJsonValue class encapsulates a value in JSON.

• QJulianCalendar: The QJulianCalendar class provides Julian calendar system implementation.

• QJulianCalendar: The QJulianCalendar class provides Julian calendar system implementation.

• QKeyCombination: The QKeyCombination class stores a combination of a key with optional modifiers.

• QKeyCombination: The QKeyCombination class stores a combination of a key with optional modifiers.

• QKeyEvent: The QKeyEvent class describes a key event.

• QKeyEvent: The QKeyEvent class describes a key event.

• QKeySequence: The QKeySequence class encapsulates a key sequence as used by shortcuts.

• QKeySequence: The QKeySequence class encapsulates a key sequence as used by shortcuts.

• QKeySequenceEdit: The QKeySequenceEdit widget allows to input a QKeySequence.

• QKeySequenceEdit: The QKeySequenceEdit widget allows to input a QKeySequence.

• QKeyValueIterator: Iterator over the key/value pairs of an associative container.

• QKeyValueIterator: Iterator over the key/value pairs of an associative container.

• QLCDNumber: The QLCDNumber widget displays a number with LCD-like digits.

• QLCDNumber: The QLCDNumber widget displays a number with LCD-like digits.

• QLEInteger: The QLEInteger class provides platform-independent little-endian integers.

• QLEInteger: The QLEInteger class provides platform-independent little-endian integers.

• QLabel: The QLabel widget provides a text or image display.

• QLabel: The QLabel widget provides a text or image display.

• QLatin1Char: The QLatin1Char class provides an 8-bit ASCII/Latin-1 character.

• QLatin1Char: The QLatin1Char class provides an 8-bit ASCII/Latin-1 character.

• QLatin1String: The QLatin1String class provides a thin wrapper around an US-ASCII/Latin-1 encoded string literal.

• QLatin1String: The QLatin1String class provides a thin wrapper around an US-ASCII/Latin-1 encoded string literal.

• QLayout: The QLayout class is the base class of geometry managers.

• QLayout: The QLayout class is the base class of geometry managers.

• QLayoutItem: The QLayoutItem class provides an abstract item that a QLayout manipulates.

• QLayoutItem: The QLayoutItem class provides an abstract item that a QLayout manipulates.

• QLibrary: The QLibrary class loads shared libraries at runtime.

• QLibrary: The QLibrary class loads shared libraries at runtime.

• QLibraryInfo: The QLibraryInfo class provides information about the Qt library.

• QLibraryInfo: The QLibraryInfo class provides information about the Qt library.

• QLine: The QLine class provides a two-dimensional vector using integer precision.

• QLine: The QLine class provides a two-dimensional vector using integer precision.

• QLineEdit: The QLineEdit widget is a one-line text editor.

• QLineEdit: The QLineEdit widget is a one-line text editor.

• QLineF: The QLineF class provides a two-dimensional vector using floating point precision.

• QLineF: The QLineF class provides a two-dimensional vector using floating point precision.

• QLinearGradient: The QLinearGradient class is used in combination with QBrush to specify a linear gradient brush.

• QLinearGradient: The QLinearGradient class is used in combination with QBrush to specify a linear gradient brush.

• QLinkedList: The QLinkedList class is a template class that provides linked lists.

• QLinkedList: The QLinkedList class is a template class that provides linked lists.

• QLinkedListIterator: The QLinkedListIterator class provides a Java-style const iterator for QLinkedList.

• QLinkedListIterator: The QLinkedListIterator class provides a Java-style const iterator for QLinkedList.

• QList: The QList class is a template class that provides a dynamic array.

• QList: The QList class is a template class that provides a dynamic array.

• QListIterator: The QListIterator class provides a Java-style const iterator for QList and QQueue.

• QListIterator: The QListIterator class provides a Java-style const iterator for QList and QQueue.

• QListView: The QListView class provides a list or icon view onto a model.

• QListView: The QListView class provides a list or icon view onto a model.

• QListWidget: The QListWidget class provides an item-based list widget.

• QListWidget: The QListWidget class provides an item-based list widget.

• QListWidgetItem: The QListWidgetItem class provides an item for use with the QListWidget item view class.

• QListWidgetItem: The QListWidgetItem class provides an item for use with the QListWidget item view class.

• QLocalServer: The QLocalServer class provides a local socket based server.

• QLocalServer: The QLocalServer class provides a local socket based server.

• QLocalSocket: The QLocalSocket class provides a local socket.

• QLocalSocket: The QLocalSocket class provides a local socket.

• QLocale: The QLocale class converts between numbers and their string representations in various languages.

• QLocale: The QLocale class converts between numbers and their string representations in various languages.

• QLockFile: The QLockFile class provides locking between processes using a file.

• QLockFile: The QLockFile class provides locking between processes using a file.

• QLoggingCategory: The QLoggingCategory class represents a category, or 'area' in the logging infrastructure.

• QLoggingCategory: The QLoggingCategory class represents a category, or 'area' in the logging infrastructure.

• QMainWindow: The QMainWindow class provides a main application window.

• QMainWindow: The QMainWindow class provides a main application window.

• QMap: The QMap class is a template class that provides an associative array.

• QMap: The QMap class is a template class that provides an associative array.

• QMapIterator: The QMapIterator class provides a Java-style const iterator for QMap.

• QMapIterator: The QMapIterator class provides a Java-style const iterator for QMap.

• QMargins: The QMargins class defines the four margins of a rectangle.

• QMargins: The QMargins class defines the four margins of a rectangle.

• QMarginsF: The QMarginsF class defines the four margins of a rectangle.

• QMarginsF: The QMarginsF class defines the four margins of a rectangle.

• QMatrix4x4: The QMatrix4x4 class represents a 4x4 transformation matrix in 3D space.

• QMatrix4x4: The QMatrix4x4 class represents a 4x4 transformation matrix in 3D space.

• QMdiArea: The QMdiArea widget provides an area in which MDI windows are displayed.

• QMdiArea: The QMdiArea widget provides an area in which MDI windows are displayed.

• QMdiSubWindow: The QMdiSubWindow class provides a subwindow class for QMdiArea.

• QMdiSubWindow: The QMdiSubWindow class provides a subwindow class for QMdiArea.

• QMenu: The QMenu class provides a menu widget for use in menu bars, context menus, and other popup menus.

• QMenu: The QMenu class provides a menu widget for use in menu bars, context menus, and other popup menus.

• QMenuBar: The QMenuBar class provides a horizontal menu bar.

• QMenuBar: The QMenuBar class provides a horizontal menu bar.

• QMessageAuthenticationCode: The QMessageAuthenticationCode class provides a way to generate hash-based message authentication codes.

• QMessageAuthenticationCode: The QMessageAuthenticationCode class provides a way to generate hash-based message authentication codes.

• QMessageBox: The QMessageBox class provides a modal dialog for informing the user or for asking the user a question and receiving an answer.

• QMessageBox: The QMessageBox class provides a modal dialog for informing the user or for asking the user a question and receiving an answer.

• QMessageLogContext: The QMessageLogContext class provides additional information about a log message.

• QMessageLogContext: The QMessageLogContext class provides additional information about a log message.

• QMessageLogger: The QMessageLogger class generates log messages.

• QMessageLogger: The QMessageLogger class generates log messages.

• QMetaClassInfo: The QMetaClassInfo class provides additional information about a class.

• QMetaClassInfo: The QMetaClassInfo class provides additional information about a class.

• QMetaEnum: The QMetaEnum class provides meta-data about an enumerator.

• QMetaEnum: The QMetaEnum class provides meta-data about an enumerator.

• QMetaMethod: The QMetaMethod class provides meta-data about a member function.

• QMetaMethod: The QMetaMethod class provides meta-data about a member function.

• QMetaObject: The QMetaObject class contains meta-information about Qt objects.

• QMetaObject: The QMetaObject class contains meta-information about Qt objects.

• QMetaProperty: The QMetaProperty class provides meta-data about a property.

• QMetaProperty: The QMetaProperty class provides meta-data about a property.

• QMetaSequence: The QMetaSequence class allows type erased access to sequential containers.

• QMetaSequence: The QMetaSequence class allows type erased access to sequential containers.

• QMetaType: The QMetaType class manages named types in the meta-object system.

• QMetaType: The QMetaType class manages named types in the meta-object system.

• QMilankovicCalendar: The QMilankovicCalendar class provides Milanković calendar system implementation.

• QMilankovicCalendar: The QMilankovicCalendar class provides Milanković calendar system implementation.

• QMimeData: The QMimeData class provides a container for data that records information about its MIME type.

• QMimeData: The QMimeData class provides a container for data that records information about its MIME type.

• QMimeDatabase: The QMimeDatabase class maintains a database of MIME types.

• QMimeDatabase: The QMimeDatabase class maintains a database of MIME types.

• QMimeType: The QMimeType class describes types of file or data, represented by a MIME type string.

• QMimeType: The QMimeType class describes types of file or data, represented by a MIME type string.

• QModelIndex: The QModelIndex class is used to locate data in a data model.

• QModelIndex: The QModelIndex class is used to locate data in a data model.

• QModelRoleData: The QModelRoleData class holds a role and the data associated to that role.

• QModelRoleData: The QModelRoleData class holds a role and the data associated to that role.

• QModelRoleDataSpan: The QModelRoleDataSpan class provides a span over QModelRoleData objects.

• QModelRoleDataSpan: The QModelRoleDataSpan class provides a span over QModelRoleData objects.

• QMouseEvent: The QMouseEvent class contains parameters that describe a mouse event.

• QMouseEvent: The QMouseEvent class contains parameters that describe a mouse event.

• QMoveEvent: The QMoveEvent class contains event parameters for move events.

• QMoveEvent: The QMoveEvent class contains event parameters for move events.

• QMovie: The QMovie class is a convenience class for playing movies with QImageReader.

• QMovie: The QMovie class is a convenience class for playing movies with QImageReader.

• QMultiHash: The QMultiHash class is a convenience QHash subclass that provides multi-valued hashes.

• QMultiHash: The QMultiHash class is a convenience QHash subclass that provides multi-valued hashes.

• QMultiMap: The QMultiMap class is a template class that provides an associative array with multiple equivalent keys.

• QMultiMap: The QMultiMap class is a template class that provides an associative array with multiple equivalent keys.

• QMultiMapIterator: The QMultiMapIterator class provides a Java-style const iterator for QMultiMap. QMultiMap has both Java-style iterators and STL-style iterators. STL-style iterators are more efficient and should be preferred.

• QMultiMapIterator: The QMultiMapIterator class provides a Java-style const iterator for QMultiMap. QMultiMap has both Java-style iterators and STL-style iterators. STL-style iterators are more efficient and should be preferred.

• QMutableHashIterator: The QMutableHashIterator class provides a Java-style non-const iterator for QHash and QMultiHash.

• QMutableHashIterator: The QMutableHashIterator class provides a Java-style non-const iterator for QHash and QMultiHash.

• QMutableLinkedListIterator: The QMutableLinkedListIterator class provides a Java-style non-const iterator for QLinkedList.

• QMutableLinkedListIterator: The QMutableLinkedListIterator class provides a Java-style non-const iterator for QLinkedList.

• QMutableListIterator: The QMutableListIterator class provides a Java-style non-const iterator for QList, QQueue and QStack.

• QMutableListIterator: The QMutableListIterator class provides a Java-style non-const iterator for QList, QQueue and QStack.

• QMutableMapIterator: The QMutableMapIterator class provides a Java-style non-const iterator for QMap.

• QMutableMapIterator: The QMutableMapIterator class provides a Java-style non-const iterator for QMap.

• QMutableMultiMapIterator: The QMutableMultiMapIterator class provides a Java-style non-const iterator for QMultiMap.

• QMutableMultiMapIterator: The QMutableMultiMapIterator class provides a Java-style non-const iterator for QMultiMap.

• QMutableSetIterator: The QMutableSetIterator class provides a Java-style non-const iterator for QSet.

• QMutableSetIterator: The QMutableSetIterator class provides a Java-style non-const iterator for QSet.

• QMutex: The QMutex class provides access serialization between threads.

• QMutex: The QMutex class provides access serialization between threads.

• QMutexLocker: The QMutexLocker class is a convenience class that simplifies locking and unlocking mutexes.

• QMutexLocker: The QMutexLocker class is a convenience class that simplifies locking and unlocking mutexes.

• QNativeGestureEvent: The QNativeGestureEvent class contains parameters that describe a gesture event.

• QNativeGestureEvent: The QNativeGestureEvent class contains parameters that describe a gesture event.

• QNativeInterface::QAndroidOffscreenSurface: Native interface to a offscreen surface on Android.

• QNativeInterface::QAndroidOffscreenSurface: Native interface to a offscreen surface on Android.

• QNativeInterface::QCocoaGLContext: Native interface to an NSOpenGLContext on macOS.

• QNativeInterface::QCocoaGLContext: Native interface to an NSOpenGLContext on macOS.

• QNativeInterface::QEGLContext: Native interface to an EGL context.

• QNativeInterface::QEGLContext: Native interface to an EGL context.

• QNativeInterface::QGLXContext: Native interface to a GLX context.

• QNativeInterface::QGLXContext: Native interface to a GLX context.

• QNativeInterface::QSGD3D11Texture: Provides access to and enables adopting Direct3D 11 texture objects.

• QNativeInterface::QSGD3D11Texture: Provides access to and enables adopting Direct3D 11 texture objects.

• QNativeInterface::QSGMetalTexture: Provides access to and enables adopting Metal texture objects.

• QNativeInterface::QSGMetalTexture: Provides access to and enables adopting Metal texture objects.

• QNativeInterface::QSGOpenGLTexture: Provides access to and enables adopting OpenGL texture objects.

• QNativeInterface::QSGOpenGLTexture: Provides access to and enables adopting OpenGL texture objects.

• QNativeInterface::QSGVulkanTexture: Provides access to and enables adopting Vulkan image objects.

• QNativeInterface::QSGVulkanTexture: Provides access to and enables adopting Vulkan image objects.

• QNativeInterface::QWGLContext: Native interface to a WGL context on Windows.

• QNativeInterface::QWGLContext: Native interface to a WGL context on Windows.

• QNetworkAccessManager: The QNetworkAccessManager class allows the application to send network requests and receive replies.

• QNetworkAccessManager: The QNetworkAccessManager class allows the application to send network requests and receive replies.

• QNetworkAddressEntry: The QNetworkAddressEntry class stores one IP address supported by a network interface, along with its associated netmask and broadcast address.

• QNetworkAddressEntry: The QNetworkAddressEntry class stores one IP address supported by a network interface, along with its associated netmask and broadcast address.

• QNetworkCacheMetaData: The QNetworkCacheMetaData class provides cache information.

• QNetworkCacheMetaData: The QNetworkCacheMetaData class provides cache information.

• QNetworkCookie: The QNetworkCookie class holds one network cookie.

• QNetworkCookie: The QNetworkCookie class holds one network cookie.

• QNetworkCookieJar: The QNetworkCookieJar class implements a simple jar of QNetworkCookie objects.

• QNetworkCookieJar: The QNetworkCookieJar class implements a simple jar of QNetworkCookie objects.

• QNetworkDatagram: The QNetworkDatagram class provides the data and metadata of a UDP datagram.

• QNetworkDatagram: The QNetworkDatagram class provides the data and metadata of a UDP datagram.

• QNetworkDiskCache: The QNetworkDiskCache class provides a very basic disk cache.

• QNetworkDiskCache: The QNetworkDiskCache class provides a very basic disk cache.

• QNetworkInterface: The QNetworkInterface class provides a listing of the host's IP addresses and network interfaces.

• QNetworkInterface: The QNetworkInterface class provides a listing of the host's IP addresses and network interfaces.

• QNetworkProxy: The QNetworkProxy class provides a network layer proxy.

• QNetworkProxy: The QNetworkProxy class provides a network layer proxy.

• QNetworkProxyFactory: The QNetworkProxyFactory class provides fine-grained proxy selection.

• QNetworkProxyFactory: The QNetworkProxyFactory class provides fine-grained proxy selection.

• QNetworkProxyQuery: The QNetworkProxyQuery class is used to query the proxy settings for a socket.

• QNetworkProxyQuery: The QNetworkProxyQuery class is used to query the proxy settings for a socket.

• QNetworkReply: The QNetworkReply class contains the data and headers for a request sent with QNetworkAccessManager.

• QNetworkReply: The QNetworkReply class contains the data and headers for a request sent with QNetworkAccessManager.

• QNetworkRequest: The QNetworkRequest class holds a request to be sent with QNetworkAccessManager.

• QNetworkRequest: The QNetworkRequest class holds a request to be sent with QNetworkAccessManager.

• QObject: The QObject class is the base class of all Qt objects.

• QObject: The QObject class is the base class of all Qt objects.

• QObjectBindableProperty: The QObjectBindableProperty class is a template class that enables automatic property bindings for property data stored in QObject derived classes.

• QObjectBindableProperty: The QObjectBindableProperty class is a template class that enables automatic property bindings for property data stored in QObject derived classes.

• QObjectCleanupHandler: The QObjectCleanupHandler class watches the lifetime of multiple QObjects.

• QObjectCleanupHandler: The QObjectCleanupHandler class watches the lifetime of multiple QObjects.

• QOcspResponse: This class represents Online Certificate Status Protocol response.

• QOcspResponse: This class represents Online Certificate Status Protocol response.

• QOffscreenSurface: The QOffscreenSurface class represents an offscreen surface in the underlying platform.

• QOffscreenSurface: The QOffscreenSurface class represents an offscreen surface in the underlying platform.

• QOpenGLBuffer: The QOpenGLBuffer class provides functions for creating and managing OpenGL buffer objects.

• QOpenGLBuffer: The QOpenGLBuffer class provides functions for creating and managing OpenGL buffer objects.

• QOpenGLContext: The QOpenGLContext class represents a native OpenGL context, enabling OpenGL rendering on a QSurface.

• QOpenGLContext: The QOpenGLContext class represents a native OpenGL context, enabling OpenGL rendering on a QSurface.

• QOpenGLContextGroup: The QOpenGLContextGroup class represents a group of contexts sharing OpenGL resources.

• QOpenGLContextGroup: The QOpenGLContextGroup class represents a group of contexts sharing OpenGL resources.

• QOpenGLDebugLogger: The QOpenGLDebugLogger enables logging of OpenGL debugging messages.

• QOpenGLDebugLogger: The QOpenGLDebugLogger enables logging of OpenGL debugging messages.

• QOpenGLDebugMessage: The QOpenGLDebugMessage class wraps an OpenGL debug message.

• QOpenGLDebugMessage: The QOpenGLDebugMessage class wraps an OpenGL debug message.

• QOpenGLExtraFunctions: The QOpenGLExtraFunctions class provides cross-platform access to the OpenGL ES 3.0, 3.1 and 3.2 API.

• QOpenGLExtraFunctions: The QOpenGLExtraFunctions class provides cross-platform access to the OpenGL ES 3.0, 3.1 and 3.2 API.

• QOpenGLFramebufferObject: The QOpenGLFramebufferObject class encapsulates an OpenGL framebuffer object.

• QOpenGLFramebufferObject: The QOpenGLFramebufferObject class encapsulates an OpenGL framebuffer object.

• QOpenGLFramebufferObjectFormat: The QOpenGLFramebufferObjectFormat class specifies the format of an OpenGL framebuffer object.

• QOpenGLFramebufferObjectFormat: The QOpenGLFramebufferObjectFormat class specifies the format of an OpenGL framebuffer object.

• QOpenGLFunctions: The QOpenGLFunctions class provides cross-platform access to the OpenGL ES 2.0 API.

• QOpenGLFunctions: The QOpenGLFunctions class provides cross-platform access to the OpenGL ES 2.0 API.

• QOpenGLFunctions_1_0: The QOpenGLFunctions_1_0 class provides all functions for OpenGL 1.0 specification.

• QOpenGLFunctions_1_0: The QOpenGLFunctions_1_0 class provides all functions for OpenGL 1.0 specification.

• QOpenGLFunctions_1_1: The QOpenGLFunctions_1_1 class provides all functions for OpenGL 1.1 specification.

• QOpenGLFunctions_1_1: The QOpenGLFunctions_1_1 class provides all functions for OpenGL 1.1 specification.

• QOpenGLFunctions_1_2: The QOpenGLFunctions_1_2 class provides all functions for OpenGL 1.2 specification.

• QOpenGLFunctions_1_2: The QOpenGLFunctions_1_2 class provides all functions for OpenGL 1.2 specification.

• QOpenGLFunctions_1_3: The QOpenGLFunctions_1_3 class provides all functions for OpenGL 1.3 specification.

• QOpenGLFunctions_1_3: The QOpenGLFunctions_1_3 class provides all functions for OpenGL 1.3 specification.

• QOpenGLFunctions_1_4: The QOpenGLFunctions_1_4 class provides all functions for OpenGL 1.4 specification.

• QOpenGLFunctions_1_4: The QOpenGLFunctions_1_4 class provides all functions for OpenGL 1.4 specification.

• QOpenGLFunctions_1_5: The QOpenGLFunctions_1_5 class provides all functions for OpenGL 1.5 specification.

• QOpenGLFunctions_1_5: The QOpenGLFunctions_1_5 class provides all functions for OpenGL 1.5 specification.

• QOpenGLFunctions_2_0: The QOpenGLFunctions_2_0 class provides all functions for OpenGL 2.0 specification.

• QOpenGLFunctions_2_0: The QOpenGLFunctions_2_0 class provides all functions for OpenGL 2.0 specification.

• QOpenGLFunctions_2_1: The QOpenGLFunctions_2_1 class provides all functions for OpenGL 2.1 specification.

• QOpenGLFunctions_2_1: The QOpenGLFunctions_2_1 class provides all functions for OpenGL 2.1 specification.

• QOpenGLFunctions_3_0: The QOpenGLFunctions_3_0 class provides all functions for OpenGL 3.0 specification.

• QOpenGLFunctions_3_0: The QOpenGLFunctions_3_0 class provides all functions for OpenGL 3.0 specification.

• QOpenGLFunctions_3_1: The QOpenGLFunctions_3_1 class provides all functions for OpenGL 3.1 specification.

• QOpenGLFunctions_3_1: The QOpenGLFunctions_3_1 class provides all functions for OpenGL 3.1 specification.

• QOpenGLFunctions_3_2_Compatibility: The QOpenGLFunctions_3_2_Compatibility class provides all functions for OpenGL 3.2 compatibility profile.

• QOpenGLFunctions_3_2_Compatibility: The QOpenGLFunctions_3_2_Compatibility class provides all functions for OpenGL 3.2 compatibility profile.

• QOpenGLFunctions_3_2_Core: The QOpenGLFunctions_3_2_Core class provides all functions for OpenGL 3.2 core profile.

• QOpenGLFunctions_3_2_Core: The QOpenGLFunctions_3_2_Core class provides all functions for OpenGL 3.2 core profile.

• QOpenGLFunctions_3_3_Compatibility: The QOpenGLFunctions_3_3_Compatibility class provides all functions for OpenGL 3.3 compatibility profile.

• QOpenGLFunctions_3_3_Compatibility: The QOpenGLFunctions_3_3_Compatibility class provides all functions for OpenGL 3.3 compatibility profile.

• QOpenGLFunctions_3_3_Core: The QOpenGLFunctions_3_3_Core class provides all functions for OpenGL 3.3 core profile.

• QOpenGLFunctions_3_3_Core: The QOpenGLFunctions_3_3_Core class provides all functions for OpenGL 3.3 core profile.

• QOpenGLFunctions_4_0_Compatibility: The QOpenGLFunctions_4_0_Compatibility class provides all functions for OpenGL 4.0 compatibility profile.

• QOpenGLFunctions_4_0_Compatibility: The QOpenGLFunctions_4_0_Compatibility class provides all functions for OpenGL 4.0 compatibility profile.

• QOpenGLFunctions_4_0_Core: The QOpenGLFunctions_4_0_Core class provides all functions for OpenGL 4.0 core profile.

• QOpenGLFunctions_4_0_Core: The QOpenGLFunctions_4_0_Core class provides all functions for OpenGL 4.0 core profile.

• QOpenGLFunctions_4_1_Compatibility: The QOpenGLFunctions_4_1_Compatibility class provides all functions for OpenGL 4.1 compatibility profile.

• QOpenGLFunctions_4_1_Compatibility: The QOpenGLFunctions_4_1_Compatibility class provides all functions for OpenGL 4.1 compatibility profile.

• QOpenGLFunctions_4_1_Core: The QOpenGLFunctions_4_1_Core class provides all functions for OpenGL 4.1 core profile.

• QOpenGLFunctions_4_1_Core: The QOpenGLFunctions_4_1_Core class provides all functions for OpenGL 4.1 core profile.

• QOpenGLFunctions_4_2_Compatibility: The QOpenGLFunctions_4_2_Compatibility class provides all functions for OpenGL 4.2 compatibility profile.

• QOpenGLFunctions_4_2_Compatibility: The QOpenGLFunctions_4_2_Compatibility class provides all functions for OpenGL 4.2 compatibility profile.

• QOpenGLFunctions_4_2_Core: The QOpenGLFunctions_4_2_Core class provides all functions for OpenGL 4.2 core profile.

• QOpenGLFunctions_4_2_Core: The QOpenGLFunctions_4_2_Core class provides all functions for OpenGL 4.2 core profile.

• QOpenGLFunctions_4_3_Compatibility: The QOpenGLFunctions_4_3_Compatibility class provides all functions for OpenGL 4.3 compatibility profile.

• QOpenGLFunctions_4_3_Compatibility: The QOpenGLFunctions_4_3_Compatibility class provides all functions for OpenGL 4.3 compatibility profile.

• QOpenGLFunctions_4_3_Core: The QOpenGLFunctions_4_3_Core class provides all functions for OpenGL 4.3 core profile.

• QOpenGLFunctions_4_3_Core: The QOpenGLFunctions_4_3_Core class provides all functions for OpenGL 4.3 core profile.

• QOpenGLFunctions_4_4_Compatibility: The QOpenGLFunctions_4_4_Compatibility class provides all functions for OpenGL 4.4 compatibility profile.

• QOpenGLFunctions_4_4_Compatibility: The QOpenGLFunctions_4_4_Compatibility class provides all functions for OpenGL 4.4 compatibility profile.

• QOpenGLFunctions_4_4_Core: The QOpenGLFunctions_4_4_Core class provides all functions for OpenGL 4.4 core profile.

• QOpenGLFunctions_4_4_Core: The QOpenGLFunctions_4_4_Core class provides all functions for OpenGL 4.4 core profile.

• QOpenGLFunctions_4_5_Compatibility: The QOpenGLFunctions_4_5_Compatibility class provides all functions for OpenGL 4.5 compatibility profile.

• QOpenGLFunctions_4_5_Compatibility: The QOpenGLFunctions_4_5_Compatibility class provides all functions for OpenGL 4.5 compatibility profile.

• QOpenGLFunctions_4_5_Core: The QOpenGLFunctions_4_5_Core class provides all functions for OpenGL 4.5 core profile.

• QOpenGLFunctions_4_5_Core: The QOpenGLFunctions_4_5_Core class provides all functions for OpenGL 4.5 core profile.

• QOpenGLFunctions_ES2: The QOpenGLFunctions_ES2 class provides all functions for OpenGL ES 2.

• QOpenGLFunctions_ES2: The QOpenGLFunctions_ES2 class provides all functions for OpenGL ES 2.

• QOpenGLPaintDevice: The QOpenGLPaintDevice class enables painting to an OpenGL context using QPainter.

• QOpenGLPaintDevice: The QOpenGLPaintDevice class enables painting to an OpenGL context using QPainter.

• QOpenGLPixelTransferOptions: The QOpenGLPixelTransferOptions class describes the pixel storage modes that affect the unpacking of pixels during texture upload.

• QOpenGLPixelTransferOptions: The QOpenGLPixelTransferOptions class describes the pixel storage modes that affect the unpacking of pixels during texture upload.

• QOpenGLShader: The QOpenGLShader class allows OpenGL shaders to be compiled.

• QOpenGLShader: The QOpenGLShader class allows OpenGL shaders to be compiled.

• QOpenGLShaderProgram: The QOpenGLShaderProgram class allows OpenGL shader programs to be linked and used.

• QOpenGLShaderProgram: The QOpenGLShaderProgram class allows OpenGL shader programs to be linked and used.

• QOpenGLTexture: The QOpenGLTexture class encapsulates an OpenGL texture object.

• QOpenGLTexture: The QOpenGLTexture class encapsulates an OpenGL texture object.

• QOpenGLTextureBlitter: The QOpenGLTextureBlitter class provides a convenient way to draw textured quads via OpenGL.

• QOpenGLTextureBlitter: The QOpenGLTextureBlitter class provides a convenient way to draw textured quads via OpenGL.

• QOpenGLTimeMonitor: The QOpenGLTimeMonitor class wraps a sequence of OpenGL timer query objects.

• QOpenGLTimeMonitor: The QOpenGLTimeMonitor class wraps a sequence of OpenGL timer query objects.

• QOpenGLTimerQuery: The QOpenGLTimerQuery class wraps an OpenGL timer query object.

• QOpenGLTimerQuery: The QOpenGLTimerQuery class wraps an OpenGL timer query object.

• QOpenGLVersionFunctionsFactory: Provides access to OpenGL functions for a specified version and profile.

• QOpenGLVersionFunctionsFactory: Provides access to OpenGL functions for a specified version and profile.

• QOpenGLVersionProfile: The QOpenGLVersionProfile class represents the version and if applicable the profile of an OpenGL context.

• QOpenGLVersionProfile: The QOpenGLVersionProfile class represents the version and if applicable the profile of an OpenGL context.

• QOpenGLVertexArrayObject: The QOpenGLVertexArrayObject class wraps an OpenGL Vertex Array Object.

• QOpenGLVertexArrayObject: The QOpenGLVertexArrayObject class wraps an OpenGL Vertex Array Object.

• QOpenGLWidget: The QOpenGLWidget class is a widget for rendering OpenGL graphics.

• QOpenGLWidget: The QOpenGLWidget class is a widget for rendering OpenGL graphics.

• QOpenGLWindow: The QOpenGLWindow class is a convenience subclass of QWindow to perform OpenGL painting.

• QOpenGLWindow: The QOpenGLWindow class is a convenience subclass of QWindow to perform OpenGL painting.

• QOperatingSystemVersion: The QOperatingSystemVersion class provides information about the operating system version.

• QOperatingSystemVersion: The QOperatingSystemVersion class provides information about the operating system version.

• QPageLayout: Describes the size, orientation and margins of a page.

• QPageLayout: Describes the size, orientation and margins of a page.

• QPageRanges: The QPageRanges class represents a collection of page ranges.

• QPageRanges: The QPageRanges class represents a collection of page ranges.

• QPageSetupDialog: The QPageSetupDialog class provides a configuration dialog for the page-related options on a printer.

• QPageSetupDialog: The QPageSetupDialog class provides a configuration dialog for the page-related options on a printer.

• QPageSize: The QPageSize class describes the size and name of a defined page size.

• QPageSize: The QPageSize class describes the size and name of a defined page size.

• QPagedPaintDevice: The QPagedPaintDevice class represents a paint device that supports multiple pages.

• QPagedPaintDevice: The QPagedPaintDevice class represents a paint device that supports multiple pages.

• QPaintDevice: The QPaintDevice class is the base class of objects that can be painted on with QPainter.

• QPaintDevice: The QPaintDevice class is the base class of objects that can be painted on with QPainter.

• QPaintDeviceWindow: Convenience subclass of QWindow that is also a QPaintDevice.

• QPaintDeviceWindow: Convenience subclass of QWindow that is also a QPaintDevice.

• QPaintEngine: The QPaintEngine class provides an abstract definition of how QPainter draws to a given device on a given platform.

• QPaintEngine: The QPaintEngine class provides an abstract definition of how QPainter draws to a given device on a given platform.

• QPaintEngineState: The QPaintEngineState class provides information about the active paint engine's current state.

• QPaintEngineState: The QPaintEngineState class provides information about the active paint engine's current state.

• QPaintEvent: The QPaintEvent class contains event parameters for paint events.

• QPaintEvent: The QPaintEvent class contains event parameters for paint events.

• QPainter: The QPainter class performs low-level painting on widgets and other paint devices.

• QPainter: The QPainter class performs low-level painting on widgets and other paint devices.

• QPainterPath: The QPainterPath class provides a container for painting operations, enabling graphical shapes to be constructed and reused.

• QPainterPath: The QPainterPath class provides a container for painting operations, enabling graphical shapes to be constructed and reused.

• QPainterPathStroker: The QPainterPathStroker class is used to generate fillable outlines for a given painter path.

• QPainterPathStroker: The QPainterPathStroker class is used to generate fillable outlines for a given painter path.

• QPalette: The QPalette class contains color groups for each widget state.

• QPalette: The QPalette class contains color groups for each widget state.

• QPanGesture: The QPanGesture class describes a panning gesture made by the user.

• QPanGesture: The QPanGesture class describes a panning gesture made by the user.

• QParallelAnimationGroup: The QParallelAnimationGroup class provides a parallel group of animations.

• QParallelAnimationGroup: The QParallelAnimationGroup class provides a parallel group of animations.

• QPartialOrdering: QPartialOrdering represents the result of a comparison that allows for unordered results.

• QPartialOrdering: QPartialOrdering represents the result of a comparison that allows for unordered results.

• QPauseAnimation: The QPauseAnimation class provides a pause for QSequentialAnimationGroup.

• QPauseAnimation: The QPauseAnimation class provides a pause for QSequentialAnimationGroup.

• QPdfWriter: The QPdfWriter class is a class to generate PDFs that can be used as a paint device.

• QPdfWriter: The QPdfWriter class is a class to generate PDFs that can be used as a paint device.

• QPen: The QPen class defines how a QPainter should draw lines and outlines of shapes.

• QPen: The QPen class defines how a QPainter should draw lines and outlines of shapes.

• QPersistentModelIndex: The QPersistentModelIndex class is used to locate data in a data model.

• QPersistentModelIndex: The QPersistentModelIndex class is used to locate data in a data model.

• QPicture: The QPicture class is a paint device that records and replays QPainter commands.

• QPicture: The QPicture class is a paint device that records and replays QPainter commands.

• QPinchGesture: The QPinchGesture class describes a pinch gesture made by the user.

• QPinchGesture: The QPinchGesture class describes a pinch gesture made by the user.

• QPixelFormat: QPixelFormat is a class for describing different pixel layouts in graphics buffers.

• QPixelFormat: QPixelFormat is a class for describing different pixel layouts in graphics buffers.

• QPixmap: The QPixmap class is an off-screen image representation that can be used as a paint device.

• QPixmap: The QPixmap class is an off-screen image representation that can be used as a paint device.

• QPixmapCache: The QPixmapCache class provides an application-wide cache for pixmaps.

• QPixmapCache: The QPixmapCache class provides an application-wide cache for pixmaps.

• QPlainTextDocumentLayout: The QPlainTextDocumentLayout class implements a plain text layout for QTextDocument.

• QPlainTextDocumentLayout: The QPlainTextDocumentLayout class implements a plain text layout for QTextDocument.

• QPlainTextEdit: The QPlainTextEdit class provides a widget that is used to edit and display plain text.

• QPlainTextEdit: The QPlainTextEdit class provides a widget that is used to edit and display plain text.

• QPlatformSurfaceEvent: The QPlatformSurfaceEvent class is used to notify about native platform surface events.

• QPlatformSurfaceEvent: The QPlatformSurfaceEvent class is used to notify about native platform surface events.

• QPluginLoader: The QPluginLoader class loads a plugin at run-time.

• QPluginLoader: The QPluginLoader class loads a plugin at run-time.

• QPoint: The QPoint class defines a point in the plane using integer precision.

• QPoint: The QPoint class defines a point in the plane using integer precision.

• QPointF: The QPointF class defines a point in the plane using floating point precision.

• QPointF: The QPointF class defines a point in the plane using floating point precision.

• QPointer: The QPointer class is a template class that provides guarded pointers to QObject.

• QPointer: The QPointer class is a template class that provides guarded pointers to QObject.

• QPointerEvent: A base class for pointer events.

• QPointerEvent: A base class for pointer events.

• QPointingDevice: The QPointingDevice class describes a device from which mouse, touch or tablet events originate.

• QPointingDevice: The QPointingDevice class describes a device from which mouse, touch or tablet events originate.

• QPointingDeviceUniqueId: QPointingDeviceUniqueId identifies a unique object, such as a tagged token or stylus, which is used with a pointing device.

• QPointingDeviceUniqueId: QPointingDeviceUniqueId identifies a unique object, such as a tagged token or stylus, which is used with a pointing device.

• QPolygon: The QPolygon class provides a list of points using integer precision.

• QPolygon: The QPolygon class provides a list of points using integer precision.

• QPolygonF: The QPolygonF class provides a list of points using floating point precision.

• QPolygonF: The QPolygonF class provides a list of points using floating point precision.

• QPrintDialog: The QPrintDialog class provides a dialog for specifying the printer's configuration.

• QPrintDialog: The QPrintDialog class provides a dialog for specifying the printer's configuration.

• QPrintEngine: The QPrintEngine class defines an interface for how QPrinter interacts with a given printing subsystem.

• QPrintEngine: The QPrintEngine class defines an interface for how QPrinter interacts with a given printing subsystem.

• QPrintPreviewDialog: The QPrintPreviewDialog class provides a dialog for previewing and configuring page layouts for printer output.

• QPrintPreviewDialog: The QPrintPreviewDialog class provides a dialog for previewing and configuring page layouts for printer output.

• QPrintPreviewWidget: The QPrintPreviewWidget class provides a widget for previewing page layouts for printer output.

• QPrintPreviewWidget: The QPrintPreviewWidget class provides a widget for previewing page layouts for printer output.

• QPrinter: The QPrinter class is a paint device that paints on a printer.

• QPrinter: The QPrinter class is a paint device that paints on a printer.

• QPrinterInfo: The QPrinterInfo class gives access to information about existing printers.

• QPrinterInfo: The QPrinterInfo class gives access to information about existing printers.

• QProcess: The QProcess class is used to start external programs and to communicate with them.

• QProcess: The QProcess class is used to start external programs and to communicate with them.

• QProcessEnvironment: The QProcessEnvironment class holds the environment variables that can be passed to a program.

• QProcessEnvironment: The QProcessEnvironment class holds the environment variables that can be passed to a program.

• QProgressBar: The QProgressBar widget provides a horizontal or vertical progress bar.

• QProgressBar: The QProgressBar widget provides a horizontal or vertical progress bar.

• QProgressDialog: The QProgressDialog class provides feedback on the progress of a slow operation.

• QProgressDialog: The QProgressDialog class provides feedback on the progress of a slow operation.

• QPromise: The QPromise class provides a way to store computation results to be accessed by QFuture.

• QPromise: The QPromise class provides a way to store computation results to be accessed by QFuture.

• QProperty: The QProperty class is a template class that enables automatic property bindings.

• QProperty: The QProperty class is a template class that enables automatic property bindings.

• QPropertyAnimation: The QPropertyAnimation class animates Qt properties.

• QPropertyAnimation: The QPropertyAnimation class animates Qt properties.

• QPropertyChangeHandler: The QPropertyChangeHandler class controls the lifecycle of change callback installed on a QProperty.

• QPropertyChangeHandler: The QPropertyChangeHandler class controls the lifecycle of change callback installed on a QProperty.

• QPropertyData: The QPropertyData class is a helper class for properties with automatic property bindings.

• QPropertyData: The QPropertyData class is a helper class for properties with automatic property bindings.

• QProxyStyle: The QProxyStyle class is a convenience class that simplifies dynamically overriding QStyle elements.

• QProxyStyle: The QProxyStyle class is a convenience class that simplifies dynamically overriding QStyle elements.

• QPushButton: The QPushButton widget provides a command button.

• QPushButton: The QPushButton widget provides a command button.

• QQmlAbstractUrlInterceptor: allows you to control QML file loading.

• QQmlAbstractUrlInterceptor: allows you to control QML file loading.

• QQmlApplicationEngine: QQmlApplicationEngine provides a convenient way to load an application from a single QML file.

• QQmlApplicationEngine: QQmlApplicationEngine provides a convenient way to load an application from a single QML file.

• QQmlComponent: The QQmlComponent class encapsulates a QML component definition.

• QQmlComponent: The QQmlComponent class encapsulates a QML component definition.

• QQmlContext: The QQmlContext class defines a context within a QML engine.

• QQmlContext: The QQmlContext class defines a context within a QML engine.

• QQmlEngine: The QQmlEngine class provides an environment for instantiating QML components.

• QQmlEngine: The QQmlEngine class provides an environment for instantiating QML components.

• QQmlEngineExtensionPlugin: The QQmlEngineExtensionPlugin class provides an abstract base for custom QML extension plugins.

• QQmlEngineExtensionPlugin: The QQmlEngineExtensionPlugin class provides an abstract base for custom QML extension plugins.

• QQmlError: The QQmlError class encapsulates a QML error.

• QQmlError: The QQmlError class encapsulates a QML error.

• QQmlExpression: The QQmlExpression class evaluates JavaScript in a QML context.

• QQmlExpression: The QQmlExpression class evaluates JavaScript in a QML context.

• QQmlFileSelector: A class for applying a QFileSelector to QML file loading.

• QQmlFileSelector: A class for applying a QFileSelector to QML file loading.

• QQmlImageProviderBase: The QQmlImageProviderBase class is used to register image providers in the QML engine.

• QQmlImageProviderBase: The QQmlImageProviderBase class is used to register image providers in the QML engine.

• QQmlIncubationController: QQmlIncubationController instances drive the progress of QQmlIncubators.

• QQmlIncubationController: QQmlIncubationController instances drive the progress of QQmlIncubators.

• QQmlIncubator: The QQmlIncubator class allows QML objects to be created asynchronously.

• QQmlIncubator: The QQmlIncubator class allows QML objects to be created asynchronously.

• QQmlListProperty: The QQmlListProperty class allows applications to expose list-like properties of QObject-derived classes to QML.

• QQmlListProperty: The QQmlListProperty class allows applications to expose list-like properties of QObject-derived classes to QML.

• QQmlListReference: The QQmlListReference class allows the manipulation of QQmlListProperty properties.

• QQmlListReference: The QQmlListReference class allows the manipulation of QQmlListProperty properties.

• QQmlNetworkAccessManagerFactory: The QQmlNetworkAccessManagerFactory class creates QNetworkAccessManager instances for a QML engine.

• QQmlNetworkAccessManagerFactory: The QQmlNetworkAccessManagerFactory class creates QNetworkAccessManager instances for a QML engine.

• QQmlParserStatus: The QQmlParserStatus class provides updates on the QML parser state.

• QQmlParserStatus: The QQmlParserStatus class provides updates on the QML parser state.

• QQmlProperty: The QQmlProperty class abstracts accessing properties on objects created from QML.

• QQmlProperty: The QQmlProperty class abstracts accessing properties on objects created from QML.

• QQmlPropertyMap: The QQmlPropertyMap class allows you to set key-value pairs that can be used in QML bindings.

• QQmlPropertyMap: The QQmlPropertyMap class allows you to set key-value pairs that can be used in QML bindings.

• QQmlPropertyValueSource: The QQmlPropertyValueSource class is an interface for property value sources such as animations and bindings.

• QQmlPropertyValueSource: The QQmlPropertyValueSource class is an interface for property value sources such as animations and bindings.

• QQmlScriptString: The QQmlScriptString class encapsulates a script and its context.

• QQmlScriptString: The QQmlScriptString class encapsulates a script and its context.

• QQuaternion: The QQuaternion class represents a quaternion consisting of a vector and scalar.

• QQuaternion: The QQuaternion class represents a quaternion consisting of a vector and scalar.

• QQueue: The QQueue class is a generic container that provides a queue.

• QQueue: The QQueue class is a generic container that provides a queue.

• QQuickAsyncImageProvider: The QQuickAsyncImageProvider class provides an interface for for asynchronous control of QML image requests.

• QQuickAsyncImageProvider: The QQuickAsyncImageProvider class provides an interface for for asynchronous control of QML image requests.

• QQuickFramebufferObject: The QQuickFramebufferObject class is a convenience class for integrating OpenGL rendering using a framebuffer object (FBO) with Qt Quick.

• QQuickFramebufferObject: The QQuickFramebufferObject class is a convenience class for integrating OpenGL rendering using a framebuffer object (FBO) with Qt Quick.

• QQuickGraphicsConfiguration: The QQuickGraphicsConfiguration class is a container for low-level graphics settings that can affect how the underlying graphics API, such as Vulkan, is initialized by the Qt Quick scene graph. It can also control certain aspects of the scene graph renderer.

• QQuickGraphicsConfiguration: The QQuickGraphicsConfiguration class is a container for low-level graphics settings that can affect how the underlying graphics API, such as Vulkan, is initialized by the Qt Quick scene graph. It can also control certain aspects of the scene graph renderer.

• QQuickGraphicsDevice: The QQuickGraphicsDevice class provides an opaque container for native graphics objects representing graphics devices or contexts.

• QQuickGraphicsDevice: The QQuickGraphicsDevice class provides an opaque container for native graphics objects representing graphics devices or contexts.

• QQuickImageProvider: The QQuickImageProvider class provides an interface for supporting pixmaps and threaded image requests in QML.

• QQuickImageProvider: The QQuickImageProvider class provides an interface for supporting pixmaps and threaded image requests in QML.

• QQuickImageResponse: The QQuickImageResponse class provides an interface for asynchronous image loading in QQuickAsyncImageProvider.

• QQuickImageResponse: The QQuickImageResponse class provides an interface for asynchronous image loading in QQuickAsyncImageProvider.

• QQuickItem: The QQuickItem class provides the most basic of all visual items in Qt Quick.

• QQuickItem: The QQuickItem class provides the most basic of all visual items in Qt Quick.

• QQuickItemGrabResult: The QQuickItemGrabResult contains the result from QQuickItem::grabToImage().

• QQuickItemGrabResult: The QQuickItemGrabResult contains the result from QQuickItem::grabToImage().

• QQuickPaintedItem: The QQuickPaintedItem class provides a way to use the QPainter API in the QML Scene Graph.

• QQuickPaintedItem: The QQuickPaintedItem class provides a way to use the QPainter API in the QML Scene Graph.

• QQuickRenderControl: The QQuickRenderControl class provides a mechanism for rendering the Qt Quick scenegraph onto an offscreen render target in a fully application-controlled manner.

• QQuickRenderControl: The QQuickRenderControl class provides a mechanism for rendering the Qt Quick scenegraph onto an offscreen render target in a fully application-controlled manner.

• QQuickRenderTarget: The QQuickRenderTarget class provides an opaque container for native graphics resources specifying a render target, and associated metadata.

• QQuickRenderTarget: The QQuickRenderTarget class provides an opaque container for native graphics resources specifying a render target, and associated metadata.

• QQuickStyle: The QQuickStyle class allows configuring the application style.

• QQuickTextDocument: The QQuickTextDocument class provides access to the QTextDocument of QQuickTextEdit.

• QQuickTextDocument: The QQuickTextDocument class provides access to the QTextDocument of QQuickTextEdit.

• QQuickTextureFactory: The QQuickTextureFactory class provides an interface for loading custom textures from QML.

• QQuickTextureFactory: The QQuickTextureFactory class provides an interface for loading custom textures from QML.

• QQuickView: The QQuickView class provides a window for displaying a Qt Quick user interface.

• QQuickView: The QQuickView class provides a window for displaying a Qt Quick user interface.

• QQuickWidget: The QQuickWidget class provides a widget for displaying a Qt Quick user interface.

• QQuickWidget: The QQuickWidget class provides a widget for displaying a Qt Quick user interface.

• QQuickWindow: The QQuickWindow class provides the window for displaying a graphical QML scene.

• QQuickWindow: The QQuickWindow class provides the window for displaying a graphical QML scene.

• QRadialGradient: The QRadialGradient class is used in combination with QBrush to specify a radial gradient brush.

• QRadialGradient: The QRadialGradient class is used in combination with QBrush to specify a radial gradient brush.

• QRadioButton: The QRadioButton widget provides a radio button with a text label.

• QRadioButton: The QRadioButton widget provides a radio button with a text label.

• QRandomGenerator: The QRandomGenerator class allows one to obtain random values from a high-quality Random Number Generator.

• QRandomGenerator: The QRandomGenerator class allows one to obtain random values from a high-quality Random Number Generator.

• QRandomGenerator64: The QRandomGenerator64 class allows one to obtain 64-bit random values from a high-quality, seed-less Random Number Generator.

• QRandomGenerator64: The QRandomGenerator64 class allows one to obtain 64-bit random values from a high-quality, seed-less Random Number Generator.

• QRasterPaintEngine: The QRasterPaintEngine class enables hardware acceleration of painting operations in Qt for Embedded Linux.

• QRasterPaintEngine: The QRasterPaintEngine class enables hardware acceleration of painting operations in Qt for Embedded Linux.

• QRasterWindow: QRasterWindow is a convenience class for using QPainter on a QWindow.

• QRasterWindow: QRasterWindow is a convenience class for using QPainter on a QWindow.

• QRawFont: The QRawFont class provides access to a single physical instance of a font.

• QRawFont: The QRawFont class provides access to a single physical instance of a font.

• QReadLocker: The QReadLocker class is a convenience class that simplifies locking and unlocking read-write locks for read access.

• QReadLocker: The QReadLocker class is a convenience class that simplifies locking and unlocking read-write locks for read access.

• QReadWriteLock: The QReadWriteLock class provides read-write locking.

• QReadWriteLock: The QReadWriteLock class provides read-write locking.

• QRect: The QRect class defines a rectangle in the plane using integer precision.

• QRect: The QRect class defines a rectangle in the plane using integer precision.

• QRectF: The QRectF class defines a rectangle in the plane using floating point precision.

• QRectF: The QRectF class defines a rectangle in the plane using floating point precision.

• QRecursiveMutex: The QRecursiveMutex class provides access serialization between threads.

• QRecursiveMutex: The QRecursiveMutex class provides access serialization between threads.

• QRegion: The QRegion class specifies a clip region for a painter.

• QRegion: The QRegion class specifies a clip region for a painter.

• QRegularExpression: The QRegularExpression class provides pattern matching using regular expressions.

• QRegularExpression: The QRegularExpression class provides pattern matching using regular expressions.

• QRegularExpressionMatch: The QRegularExpressionMatch class provides the results of a matching a QRegularExpression against a string.

• QRegularExpressionMatch: The QRegularExpressionMatch class provides the results of a matching a QRegularExpression against a string.

• QRegularExpressionMatchIterator: The QRegularExpressionMatchIterator class provides an iterator on the results of a global match of a QRegularExpression object against a string.

• QRegularExpressionMatchIterator: The QRegularExpressionMatchIterator class provides an iterator on the results of a global match of a QRegularExpression object against a string.

• QRegularExpressionValidator: The QRegularExpressionValidator class is used to check a string against a regular expression.

• QRegularExpressionValidator: The QRegularExpressionValidator class is used to check a string against a regular expression.

• QResizeEvent: The QResizeEvent class contains event parameters for resize events.

• QResizeEvent: The QResizeEvent class contains event parameters for resize events.

• QResource: The QResource class provides an interface for reading directly from resources.

• QResource: The QResource class provides an interface for reading directly from resources.

• QRgba64: The QRgba64 struct contains a 64-bit RGB color.

• QRgba64: The QRgba64 struct contains a 64-bit RGB color.

• QRomanCalendar: The QRomanCalendar class is a shared base for calendars based on the ancient Roman calendar.

• QRomanCalendar: The QRomanCalendar class is a shared base for calendars based on the ancient Roman calendar.

• QRubberBand: The QRubberBand class provides a rectangle or line that can indicate a selection or a boundary.

• QRubberBand: The QRubberBand class provides a rectangle or line that can indicate a selection or a boundary.

• QRunnable: The QRunnable class is the base class for all runnable objects.

• QRunnable: The QRunnable class is the base class for all runnable objects.

• QSGBasicGeometryNode: The QSGBasicGeometryNode class serves as a baseclass for geometry based nodes.

• QSGBasicGeometryNode: The QSGBasicGeometryNode class serves as a baseclass for geometry based nodes.

• QSGClipNode: The QSGClipNode class implements the clipping functionality in the scene graph.

• QSGClipNode: The QSGClipNode class implements the clipping functionality in the scene graph.

• QSGDynamicTexture: The QSGDynamicTexture class serves as a baseclass for dynamically changing textures, such as content that is rendered to FBO's.

• QSGDynamicTexture: The QSGDynamicTexture class serves as a baseclass for dynamically changing textures, such as content that is rendered to FBO's.

• QSGFlatColorMaterial: The QSGFlatColorMaterial class provides a convenient way of rendering solid colored geometry in the scene graph.

• QSGFlatColorMaterial: The QSGFlatColorMaterial class provides a convenient way of rendering solid colored geometry in the scene graph.

• QSGGeometry: The QSGGeometry class provides low-level storage for graphics primitives in the Qt Quick Scene Graph.

• QSGGeometry: The QSGGeometry class provides low-level storage for graphics primitives in the Qt Quick Scene Graph.

• QSGGeometryNode: The QSGGeometryNode class is used for all rendered content in the scene graph.

• QSGGeometryNode: The QSGGeometryNode class is used for all rendered content in the scene graph.

• QSGImageNode: The QSGImageNode class is provided for convenience to easily draw textured content using the QML scene graph.

• QSGImageNode: The QSGImageNode class is provided for convenience to easily draw textured content using the QML scene graph.

• QSGMaterial: The QSGMaterial class encapsulates rendering state for a shader program.

• QSGMaterial: The QSGMaterial class encapsulates rendering state for a shader program.

• QSGMaterialShader: The QSGMaterialShader class represents a graphics API independent shader program.

• QSGMaterialShader: The QSGMaterialShader class represents a graphics API independent shader program.

• QSGMaterialType: The QSGMaterialType class is used as a unique type token in combination with QSGMaterial.

• QSGMaterialType: The QSGMaterialType class is used as a unique type token in combination with QSGMaterial.

• QSGNode: The QSGNode class is the base class for all nodes in the scene graph.

• QSGNode: The QSGNode class is the base class for all nodes in the scene graph.

• QSGOpacityNode: The QSGOpacityNode class is used to change opacity of nodes.

• QSGOpacityNode: The QSGOpacityNode class is used to change opacity of nodes.

• QSGOpaqueTextureMaterial: The QSGOpaqueTextureMaterial class provides a convenient way of rendering textured geometry in the scene graph.

• QSGOpaqueTextureMaterial: The QSGOpaqueTextureMaterial class provides a convenient way of rendering textured geometry in the scene graph.

• QSGRectangleNode: The QSGRectangleNode class is a convenience class for drawing solid filled rectangles using scenegraph.

• QSGRectangleNode: The QSGRectangleNode class is a convenience class for drawing solid filled rectangles using scenegraph.

• QSGRenderNode: The QSGRenderNode class represents a set of custom rendering commands targeting the graphics API that is in use by the scenegraph.

• QSGRenderNode: The QSGRenderNode class represents a set of custom rendering commands targeting the graphics API that is in use by the scenegraph.

• QSGRendererInterface: An interface providing access to some of the graphics API specific internals of the scenegraph.

• QSGRendererInterface: An interface providing access to some of the graphics API specific internals of the scenegraph.

• QSGSimpleRectNode: The QSGSimpleRectNode class is a convenience class for drawing solid filled rectangles using scenegraph.

• QSGSimpleRectNode: The QSGSimpleRectNode class is a convenience class for drawing solid filled rectangles using scenegraph.

• QSGSimpleTextureNode: The QSGSimpleTextureNode class is provided for convenience to easily draw textured content using the QML scene graph.

• QSGSimpleTextureNode: The QSGSimpleTextureNode class is provided for convenience to easily draw textured content using the QML scene graph.

• QSGTexture: The QSGTexture class is the base class for textures used in the scene graph.

• QSGTexture: The QSGTexture class is the base class for textures used in the scene graph.

• QSGTextureMaterial: The QSGTextureMaterial class provides a convenient way of rendering textured geometry in the scene graph.

• QSGTextureMaterial: The QSGTextureMaterial class provides a convenient way of rendering textured geometry in the scene graph.

• QSGTextureProvider: The QSGTextureProvider class encapsulates texture based entities in QML.

• QSGTextureProvider: The QSGTextureProvider class encapsulates texture based entities in QML.

• QSGTransformNode: The QSGTransformNode class implements transformations in the scene graph.

• QSGTransformNode: The QSGTransformNode class implements transformations in the scene graph.

• QSGVertexColorMaterial: The QSGVertexColorMaterial class provides a convenient way of rendering per-vertex colored geometry in the scene graph.

• QSGVertexColorMaterial: The QSGVertexColorMaterial class provides a convenient way of rendering per-vertex colored geometry in the scene graph.

• QSaveFile: The QSaveFile class provides an interface for safely writing to files.

• QSaveFile: The QSaveFile class provides an interface for safely writing to files.

• QScopeGuard: Provides a scope guard for calling a function at the end of a scope.

• QScopeGuard: Provides a scope guard for calling a function at the end of a scope.

• QScopedArrayPointer: The QScopedArrayPointer class stores a pointer to a dynamically allocated array of objects, and deletes it upon destruction.

• QScopedArrayPointer: The QScopedArrayPointer class stores a pointer to a dynamically allocated array of objects, and deletes it upon destruction.

• QScopedPointer: The QScopedPointer class stores a pointer to a dynamically allocated object, and deletes it upon destruction.

• QScopedPointer: The QScopedPointer class stores a pointer to a dynamically allocated object, and deletes it upon destruction.

• QScopedValueRollback: The QScopedValueRollback class resets a variable to its previous value on destruction.

• QScopedValueRollback: The QScopedValueRollback class resets a variable to its previous value on destruction.

• QScreen: The QScreen class is used to query screen properties.

• QScreen: The QScreen class is used to query screen properties.

• QScrollArea: The QScrollArea class provides a scrolling view onto another widget.

• QScrollArea: The QScrollArea class provides a scrolling view onto another widget.

• QScrollBar: The QScrollBar widget provides a vertical or horizontal scroll bar.

• QScrollBar: The QScrollBar widget provides a vertical or horizontal scroll bar.

• QScrollEvent: The QScrollEvent class is sent when scrolling.

• QScrollEvent: The QScrollEvent class is sent when scrolling.

• QScrollPrepareEvent: The QScrollPrepareEvent class is sent in preparation of scrolling.

• QScrollPrepareEvent: The QScrollPrepareEvent class is sent in preparation of scrolling.

• QScroller: The QScroller class enables kinetic scrolling for any scrolling widget or graphics item.

• QScroller: The QScroller class enables kinetic scrolling for any scrolling widget or graphics item.

• QScrollerProperties: The QScrollerProperties class stores the settings for a QScroller.

• QScrollerProperties: The QScrollerProperties class stores the settings for a QScroller.

• QSctpServer: The QSctpServer class provides an SCTP-based server.

• QSctpServer: The QSctpServer class provides an SCTP-based server.

• QSctpSocket: The QSctpSocket class provides an SCTP socket.

• QSctpSocket: The QSctpSocket class provides an SCTP socket.

• QSemaphore: The QSemaphore class provides a general counting semaphore.

• QSemaphore: The QSemaphore class provides a general counting semaphore.

• QSemaphoreReleaser: The QSemaphoreReleaser class provides exception-safe deferral of a QSemaphore::release() call.

• QSemaphoreReleaser: The QSemaphoreReleaser class provides exception-safe deferral of a QSemaphore::release() call.

• QSequentialAnimationGroup: The QSequentialAnimationGroup class provides a sequential group of animations.

• QSequentialAnimationGroup: The QSequentialAnimationGroup class provides a sequential group of animations.

• QSequentialIterable: The QSequentialIterable class is an iterable interface for a container in a QVariant.

• QSequentialIterable: The QSequentialIterable class is an iterable interface for a container in a QVariant.

• QSessionManager: The QSessionManager class provides access to the session manager.

• QSessionManager: The QSessionManager class provides access to the session manager.

• QSet: The QSet class is a template class that provides a hash-table-based set.

• QSet: The QSet class is a template class that provides a hash-table-based set.

• QSetIterator: The QSetIterator class provides a Java-style const iterator for QSet.

• QSetIterator: The QSetIterator class provides a Java-style const iterator for QSet.

• QSettings: The QSettings class provides persistent platform-independent application settings.

• QSettings: The QSettings class provides persistent platform-independent application settings.

• QSharedData: The QSharedData class is a base class for shared data objects.

• QSharedData: The QSharedData class is a base class for shared data objects.

• QSharedDataPointer: The QSharedDataPointer class represents a pointer to an implicitly shared object.

• QSharedDataPointer: The QSharedDataPointer class represents a pointer to an implicitly shared object.

• QSharedMemory: The QSharedMemory class provides access to a shared memory segment.

• QSharedMemory: The QSharedMemory class provides access to a shared memory segment.

• QSharedPointer: The QSharedPointer class holds a strong reference to a shared pointer.

• QSharedPointer: The QSharedPointer class holds a strong reference to a shared pointer.

• QShortcut: The QShortcut class is used to create keyboard shortcuts.

• QShortcut: The QShortcut class is used to create keyboard shortcuts.

• QShortcutEvent: The QShortcutEvent class provides an event which is generated when the user presses a key combination.

• QShortcutEvent: The QShortcutEvent class provides an event which is generated when the user presses a key combination.

• QShowEvent: The QShowEvent class provides an event that is sent when a widget is shown.

• QShowEvent: The QShowEvent class provides an event that is sent when a widget is shown.

• QSignalBlocker: Exception-safe wrapper around QObject::blockSignals().

• QSignalBlocker: Exception-safe wrapper around QObject::blockSignals().

• QSignalMapper: The QSignalMapper class bundles signals from identifiable senders.

• QSignalMapper: The QSignalMapper class bundles signals from identifiable senders.

• QSignalSpy: The QSignalSpy class enables introspection of signal emission.

• QSignalSpy: The QSignalSpy class enables introspection of signal emission.

• QSinglePointEvent: A base class for pointer events containing a single point, such as mouse events.

• QSinglePointEvent: A base class for pointer events containing a single point, such as mouse events.

• QSize: The QSize class defines the size of a two-dimensional object using integer point precision.

• QSize: The QSize class defines the size of a two-dimensional object using integer point precision.

• QSizeF: The QSizeF class defines the size of a two-dimensional object using floating point precision.

• QSizeF: The QSizeF class defines the size of a two-dimensional object using floating point precision.

• QSizeGrip: The QSizeGrip class provides a resize handle for resizing top-level windows.

• QSizeGrip: The QSizeGrip class provides a resize handle for resizing top-level windows.

• QSizePolicy: The QSizePolicy class is a layout attribute describing horizontal and vertical resizing policy.

• QSizePolicy: The QSizePolicy class is a layout attribute describing horizontal and vertical resizing policy.

• QSlider: The QSlider widget provides a vertical or horizontal slider.

• QSlider: The QSlider widget provides a vertical or horizontal slider.

• QSocketNotifier: The QSocketNotifier class provides support for monitoring activity on a file descriptor.

• QSocketNotifier: The QSocketNotifier class provides support for monitoring activity on a file descriptor.

• QSortFilterProxyModel: The QSortFilterProxyModel class provides support for sorting and filtering data passed between another model and a view.

• QSortFilterProxyModel: The QSortFilterProxyModel class provides support for sorting and filtering data passed between another model and a view.

• QSpacerItem: The QSpacerItem class provides blank space in a layout.

• QSpacerItem: The QSpacerItem class provides blank space in a layout.

• QSpinBox: The QSpinBox class provides a spin box widget.

• QSpinBox: The QSpinBox class provides a spin box widget.

• QSplashScreen: The QSplashScreen widget provides a splash screen that can be shown during application startup.

• QSplashScreen: The QSplashScreen widget provides a splash screen that can be shown during application startup.

• QSplitter: The QSplitter class implements a splitter widget.

• QSplitter: The QSplitter class implements a splitter widget.

• QSplitterHandle: The QSplitterHandle class provides handle functionality for the splitter.

• QSplitterHandle: The QSplitterHandle class provides handle functionality for the splitter.

• QSqlDatabase: The QSqlDatabase class handles a connection to a database.

• QSqlDatabase: The QSqlDatabase class handles a connection to a database.

• QSqlDriver: The QSqlDriver class is an abstract base class for accessing specific SQL databases.

• QSqlDriver: The QSqlDriver class is an abstract base class for accessing specific SQL databases.

• QSqlDriverCreator: The QSqlDriverCreator class is a template class that provides a SQL driver factory for a specific driver type.

• QSqlDriverCreator: The QSqlDriverCreator class is a template class that provides a SQL driver factory for a specific driver type.

• QSqlDriverCreatorBase: The QSqlDriverCreatorBase class is the base class for SQL driver factories.

• QSqlDriverCreatorBase: The QSqlDriverCreatorBase class is the base class for SQL driver factories.

• QSqlDriverPlugin: The QSqlDriverPlugin class provides an abstract base for custom QSqlDriver plugins.

• QSqlDriverPlugin: The QSqlDriverPlugin class provides an abstract base for custom QSqlDriver plugins.

• QSqlError: The QSqlError class provides SQL database error information.

• QSqlError: The QSqlError class provides SQL database error information.

• QSqlField: The QSqlField class manipulates the fields in SQL database tables and views.

• QSqlField: The QSqlField class manipulates the fields in SQL database tables and views.

• QSqlIndex: The QSqlIndex class provides functions to manipulate and describe database indexes.

• QSqlIndex: The QSqlIndex class provides functions to manipulate and describe database indexes.

• QSqlQuery: The QSqlQuery class provides a means of executing and manipulating SQL statements.

• QSqlQuery: The QSqlQuery class provides a means of executing and manipulating SQL statements.

• QSqlQueryModel: The QSqlQueryModel class provides a read-only data model for SQL result sets.

• QSqlQueryModel: The QSqlQueryModel class provides a read-only data model for SQL result sets.

• QSqlRecord: The QSqlRecord class encapsulates a database record.

• QSqlRecord: The QSqlRecord class encapsulates a database record.

• QSqlRelation: The QSqlRelation class stores information about an SQL foreign key.

• QSqlRelation: The QSqlRelation class stores information about an SQL foreign key.

• QSqlRelationalDelegate: The QSqlRelationalDelegate class provides a delegate that is used to display and edit data from a QSqlRelationalTableModel.

• QSqlRelationalDelegate: The QSqlRelationalDelegate class provides a delegate that is used to display and edit data from a QSqlRelationalTableModel.

• QSqlRelationalTableModel: The QSqlRelationalTableModel class provides an editable data model for a single database table, with foreign key support.

• QSqlRelationalTableModel: The QSqlRelationalTableModel class provides an editable data model for a single database table, with foreign key support.

• QSqlResult: The QSqlResult class provides an abstract interface for accessing data from specific SQL databases.

• QSqlResult: The QSqlResult class provides an abstract interface for accessing data from specific SQL databases.

• QSqlTableModel: The QSqlTableModel class provides an editable data model for a single database table.

• QSqlTableModel: The QSqlTableModel class provides an editable data model for a single database table.

• QSslCertificate: The QSslCertificate class provides a convenient API for an X509 certificate.

• QSslCertificate: The QSslCertificate class provides a convenient API for an X509 certificate.

• QSslCertificateExtension: The QSslCertificateExtension class provides an API for accessing the extensions of an X509 certificate.

• QSslCertificateExtension: The QSslCertificateExtension class provides an API for accessing the extensions of an X509 certificate.

• QSslCipher: The QSslCipher class represents an SSL cryptographic cipher.

• QSslCipher: The QSslCipher class represents an SSL cryptographic cipher.

• QSslConfiguration: The QSslConfiguration class holds the configuration and state of an SSL connection.

• QSslConfiguration: The QSslConfiguration class holds the configuration and state of an SSL connection.

• QSslDiffieHellmanParameters: The QSslDiffieHellmanParameters class provides an interface for Diffie-Hellman parameters for servers.

• QSslDiffieHellmanParameters: The QSslDiffieHellmanParameters class provides an interface for Diffie-Hellman parameters for servers.

• QSslEllipticCurve: Represents an elliptic curve for use by elliptic-curve cipher algorithms.

• QSslEllipticCurve: Represents an elliptic curve for use by elliptic-curve cipher algorithms.

• QSslError: The QSslError class provides an SSL error.

• QSslError: The QSslError class provides an SSL error.

• QSslKey: The QSslKey class provides an interface for private and public keys.

• QSslKey: The QSslKey class provides an interface for private and public keys.

• QSslPreSharedKeyAuthenticator: The QSslPreSharedKeyAuthenticator class provides authentication data for pre shared keys (PSK) ciphersuites.

• QSslPreSharedKeyAuthenticator: The QSslPreSharedKeyAuthenticator class provides authentication data for pre shared keys (PSK) ciphersuites.

• QSslSocket: The QSslSocket class provides an SSL encrypted socket for both clients and servers.

• QSslSocket: The QSslSocket class provides an SSL encrypted socket for both clients and servers.

• QStack: The QStack class is a template class that provides a stack.

• QStack: The QStack class is a template class that provides a stack.

• QStackedLayout: The QStackedLayout class provides a stack of widgets where only one widget is visible at a time.

• QStackedLayout: The QStackedLayout class provides a stack of widgets where only one widget is visible at a time.

• QStackedWidget: The QStackedWidget class provides a stack of widgets where only one widget is visible at a time.

• QStackedWidget: The QStackedWidget class provides a stack of widgets where only one widget is visible at a time.

• QStandardItem: The QStandardItem class provides an item for use with the QStandardItemModel class.

• QStandardItem: The QStandardItem class provides an item for use with the QStandardItemModel class.

• QStandardItemEditorCreator: The QStandardItemEditorCreator class provides the possibility to register widgets without having to subclass QItemEditorCreatorBase.

• QStandardItemEditorCreator: The QStandardItemEditorCreator class provides the possibility to register widgets without having to subclass QItemEditorCreatorBase.

• QStandardItemModel: The QStandardItemModel class provides a generic model for storing custom data.

• QStandardItemModel: The QStandardItemModel class provides a generic model for storing custom data.

• QStandardPaths: The QStandardPaths class provides methods for accessing standard paths.

• QStandardPaths: The QStandardPaths class provides methods for accessing standard paths.

• QStaticByteArrayMatcher: The QStaticByteArrayMatcher class is a compile-time version of QByteArrayMatcher.

• QStaticByteArrayMatcher: The QStaticByteArrayMatcher class is a compile-time version of QByteArrayMatcher.

• QStaticPlugin: QStaticPlugin is a struct containing a reference to a static plugin instance together with its meta data.

• QStaticPlugin: QStaticPlugin is a struct containing a reference to a static plugin instance together with its meta data.

• QStaticText: The QStaticText class enables optimized drawing of text when the text and its layout is updated rarely.

• QStaticText: The QStaticText class enables optimized drawing of text when the text and its layout is updated rarely.

• QStatusBar: The QStatusBar class provides a horizontal bar suitable for presenting status information.

• QStatusBar: The QStatusBar class provides a horizontal bar suitable for presenting status information.

• QStatusTipEvent: The QStatusTipEvent class provides an event that is used to show messages in a status bar.

• QStatusTipEvent: The QStatusTipEvent class provides an event that is used to show messages in a status bar.

• QStorageInfo: Provides information about currently mounted storage and drives.

• QStorageInfo: Provides information about currently mounted storage and drives.

• QString: The QString class provides a Unicode character string.

• QString: The QString class provides a Unicode character string.

• QStringConverter: The QStringConverter class provides a base class for encoding and decoding text.

• QStringConverter: The QStringConverter class provides a base class for encoding and decoding text.

• QStringDecoder: The QStringDecoder class provides a state-based decoder for text.

• QStringDecoder: The QStringDecoder class provides a state-based decoder for text.

• QStringEncoder: The QStringEncoder class provides a state-based encoder for text.

• QStringEncoder: The QStringEncoder class provides a state-based encoder for text.

• QStringList: The QStringList class provides a list of strings.

• QStringList: The QStringList class provides a list of strings.

• QStringListModel: The QStringListModel class provides a model that supplies strings to views.

• QStringListModel: The QStringListModel class provides a model that supplies strings to views.

• QStringMatcher: The QStringMatcher class holds a sequence of characters that can be quickly matched in a Unicode string.

• QStringMatcher: The QStringMatcher class holds a sequence of characters that can be quickly matched in a Unicode string.

• QStringRef: The QStringRef class provides a thin wrapper around QString substrings.

• QStringRef: The QStringRef class provides a thin wrapper around QString substrings.

• QStringTokenizer: The QStringTokenizer class splits strings into tokens along given separators.

• QStringTokenizer: The QStringTokenizer class splits strings into tokens along given separators.

• QStringView: The QStringView class provides a unified view on UTF-16 strings with a read-only subset of the QString API.

• QStringView: The QStringView class provides a unified view on UTF-16 strings with a read-only subset of the QString API.

• QStyle: The QStyle class is an abstract base class that encapsulates the look and feel of a GUI.

• QStyle: The QStyle class is an abstract base class that encapsulates the look and feel of a GUI.

• QStyleFactory: The QStyleFactory class creates QStyle objects.

• QStyleFactory: The QStyleFactory class creates QStyle objects.

• QStyleHintReturn: The QStyleHintReturn class provides style hints that return more than basic data types.

• QStyleHintReturn: The QStyleHintReturn class provides style hints that return more than basic data types.

• QStyleHintReturnMask: The QStyleHintReturnMask class provides style hints that return a QRegion.

• QStyleHintReturnMask: The QStyleHintReturnMask class provides style hints that return a QRegion.

• QStyleHintReturnVariant: The QStyleHintReturnVariant class provides style hints that return a QVariant.

• QStyleHintReturnVariant: The QStyleHintReturnVariant class provides style hints that return a QVariant.

• QStyleHints: The QStyleHints class contains platform specific hints and settings.

• QStyleHints: The QStyleHints class contains platform specific hints and settings.

• QStyleOption: The QStyleOption class stores the parameters used by QStyle functions.

• QStyleOption: The QStyleOption class stores the parameters used by QStyle functions.

• QStyleOptionButton: The QStyleOptionButton class is used to describe the parameters for drawing buttons.

• QStyleOptionButton: The QStyleOptionButton class is used to describe the parameters for drawing buttons.

• QStyleOptionComboBox: The QStyleOptionComboBox class is used to describe the parameter for drawing a combobox.

• QStyleOptionComboBox: The QStyleOptionComboBox class is used to describe the parameter for drawing a combobox.

• QStyleOptionComplex: The QStyleOptionComplex class is used to hold parameters that are common to all complex controls.

• QStyleOptionComplex: The QStyleOptionComplex class is used to hold parameters that are common to all complex controls.

• QStyleOptionDockWidget: The QStyleOptionDockWidget class is used to describe the parameters for drawing a dock widget.

• QStyleOptionDockWidget: The QStyleOptionDockWidget class is used to describe the parameters for drawing a dock widget.

• QStyleOptionFocusRect: The QStyleOptionFocusRect class is used to describe the parameters for drawing a focus rectangle with QStyle.

• QStyleOptionFocusRect: The QStyleOptionFocusRect class is used to describe the parameters for drawing a focus rectangle with QStyle.

• QStyleOptionFrame: The QStyleOptionFrame class is used to describe the parameters for drawing a frame.

• QStyleOptionFrame: The QStyleOptionFrame class is used to describe the parameters for drawing a frame.

• QStyleOptionGraphicsItem: The QStyleOptionGraphicsItem class is used to describe the parameters needed to draw a QGraphicsItem.

• QStyleOptionGraphicsItem: The QStyleOptionGraphicsItem class is used to describe the parameters needed to draw a QGraphicsItem.

• QStyleOptionGroupBox: The QStyleOptionGroupBox class describes the parameters for drawing a group box.

• QStyleOptionGroupBox: The QStyleOptionGroupBox class describes the parameters for drawing a group box.

• QStyleOptionHeader: The QStyleOptionHeader class is used to describe the parameters for drawing a header.

• QStyleOptionHeader: The QStyleOptionHeader class is used to describe the parameters for drawing a header.

• QStyleOptionMenuItem: The QStyleOptionMenuItem class is used to describe the parameter necessary for drawing a menu item.

• QStyleOptionMenuItem: The QStyleOptionMenuItem class is used to describe the parameter necessary for drawing a menu item.

• QStyleOptionProgressBar: The QStyleOptionProgressBar class is used to describe the parameters necessary for drawing a progress bar.

• QStyleOptionProgressBar: The QStyleOptionProgressBar class is used to describe the parameters necessary for drawing a progress bar.

• QStyleOptionRubberBand: The QStyleOptionRubberBand class is used to describe the parameters needed for drawing a rubber band.

• QStyleOptionRubberBand: The QStyleOptionRubberBand class is used to describe the parameters needed for drawing a rubber band.

• QStyleOptionSizeGrip: The QStyleOptionSizeGrip class is used to describe the parameter for drawing a size grip.

• QStyleOptionSizeGrip: The QStyleOptionSizeGrip class is used to describe the parameter for drawing a size grip.

• QStyleOptionSlider: The QStyleOptionSlider class is used to describe the parameters needed for drawing a slider.

• QStyleOptionSlider: The QStyleOptionSlider class is used to describe the parameters needed for drawing a slider.

• QStyleOptionSpinBox: The QStyleOptionSpinBox class is used to describe the parameters necessary for drawing a spin box.

• QStyleOptionSpinBox: The QStyleOptionSpinBox class is used to describe the parameters necessary for drawing a spin box.

• QStyleOptionTab: The QStyleOptionTab class is used to describe the parameters for drawing a tab bar.

• QStyleOptionTab: The QStyleOptionTab class is used to describe the parameters for drawing a tab bar.

• QStyleOptionTabBarBase: The QStyleOptionTabBarBase class is used to describe the base of a tab bar, i.e. the part that the tab bar usually overlaps with.

• QStyleOptionTabBarBase: The QStyleOptionTabBarBase class is used to describe the base of a tab bar, i.e. the part that the tab bar usually overlaps with.

• QStyleOptionTabWidgetFrame: The QStyleOptionTabWidgetFrame class is used to describe the parameters for drawing the frame around a tab widget.

• QStyleOptionTabWidgetFrame: The QStyleOptionTabWidgetFrame class is used to describe the parameters for drawing the frame around a tab widget.

• QStyleOptionTitleBar: The QStyleOptionTitleBar class is used to describe the parameters for drawing a title bar.

• QStyleOptionTitleBar: The QStyleOptionTitleBar class is used to describe the parameters for drawing a title bar.

• QStyleOptionToolBar: The QStyleOptionToolBar class is used to describe the parameters for drawing a toolbar.

• QStyleOptionToolBar: The QStyleOptionToolBar class is used to describe the parameters for drawing a toolbar.

• QStyleOptionToolBox: The QStyleOptionToolBox class is used to describe the parameters needed for drawing a tool box.

• QStyleOptionToolBox: The QStyleOptionToolBox class is used to describe the parameters needed for drawing a tool box.

• QStyleOptionToolButton: The QStyleOptionToolButton class is used to describe the parameters for drawing a tool button.

• QStyleOptionToolButton: The QStyleOptionToolButton class is used to describe the parameters for drawing a tool button.

• QStyleOptionViewItem: The QStyleOptionViewItem class is used to describe the parameters used to draw an item in a view widget.

• QStyleOptionViewItem: The QStyleOptionViewItem class is used to describe the parameters used to draw an item in a view widget.

• QStylePainter: The QStylePainter class is a convenience class for drawing QStyle elements inside a widget.

• QStylePainter: The QStylePainter class is a convenience class for drawing QStyle elements inside a widget.

• QStylePlugin: The QStylePlugin class provides an abstract base for custom QStyle plugins.

• QStylePlugin: The QStylePlugin class provides an abstract base for custom QStyle plugins.

• QStyledItemDelegate: The QStyledItemDelegate class provides display and editing facilities for data items from a model.

• QStyledItemDelegate: The QStyledItemDelegate class provides display and editing facilities for data items from a model.

• QSupportedWritingSystems: The QSupportedWritingSystems class is used when registering fonts with the internal Qt fontdatabase.

• QSupportedWritingSystems: The QSupportedWritingSystems class is used when registering fonts with the internal Qt fontdatabase.

• QSurface: The QSurface class is an abstraction of renderable surfaces in Qt.

• QSurface: The QSurface class is an abstraction of renderable surfaces in Qt.

• QSurfaceFormat: The QSurfaceFormat class represents the format of a QSurface.

• QSurfaceFormat: The QSurfaceFormat class represents the format of a QSurface.

• QSvgGenerator: The QSvgGenerator class provides a paint device that is used to create SVG drawings.

• QSvgRenderer: The QSvgRenderer class is used to draw the contents of SVG files onto paint devices.

• QSvgWidget: The QSvgWidget class provides a widget that is used to display the contents of Scalable Vector Graphics (SVG) files.

• QSwipeGesture: The QSwipeGesture class describes a swipe gesture made by the user.

• QSwipeGesture: The QSwipeGesture class describes a swipe gesture made by the user.

• QSyntaxHighlighter: The QSyntaxHighlighter class allows you to define syntax highlighting rules, and in addition you can use the class to query a document's current formatting or user data.

• QSyntaxHighlighter: The QSyntaxHighlighter class allows you to define syntax highlighting rules, and in addition you can use the class to query a document's current formatting or user data.

• QSysInfo: The QSysInfo class provides information about the system.

• QSysInfo: The QSysInfo class provides information about the system.

• QSystemSemaphore: The QSystemSemaphore class provides a general counting system semaphore.

• QSystemSemaphore: The QSystemSemaphore class provides a general counting system semaphore.

• QSystemTrayIcon: The QSystemTrayIcon class provides an icon for an application in the system tray.

• QSystemTrayIcon: The QSystemTrayIcon class provides an icon for an application in the system tray.

• QTabBar: The QTabBar class provides a tab bar, e.g. for use in tabbed dialogs.

• QTabBar: The QTabBar class provides a tab bar, e.g. for use in tabbed dialogs.

• QTabWidget: The QTabWidget class provides a stack of tabbed widgets.

• QTabWidget: The QTabWidget class provides a stack of tabbed widgets.

• QTableView: The QTableView class provides a default model/view implementation of a table view.

• QTableView: The QTableView class provides a default model/view implementation of a table view.

• QTableWidget: The QTableWidget class provides an item-based table view with a default model.

• QTableWidget: The QTableWidget class provides an item-based table view with a default model.

• QTableWidgetItem: The QTableWidgetItem class provides an item for use with the QTableWidget class.

• QTableWidgetItem: The QTableWidgetItem class provides an item for use with the QTableWidget class.

• QTableWidgetSelectionRange: The QTableWidgetSelectionRange class provides a way to interact with selection in a model without using model indexes and a selection model.

• QTableWidgetSelectionRange: The QTableWidgetSelectionRange class provides a way to interact with selection in a model without using model indexes and a selection model.

• QTabletEvent: The QTabletEvent class contains parameters that describe a Tablet event.

• QTabletEvent: The QTabletEvent class contains parameters that describe a Tablet event.

• QTaggedIterator: QTaggedIterator is a template class that wraps an iterator and exposes standard iterator traits.

• QTaggedIterator: QTaggedIterator is a template class that wraps an iterator and exposes standard iterator traits.

• QTapAndHoldGesture: The QTapAndHoldGesture class describes a tap-and-hold (aka LongTap) gesture made by the user.

• QTapAndHoldGesture: The QTapAndHoldGesture class describes a tap-and-hold (aka LongTap) gesture made by the user.

• QTapGesture: The QTapGesture class describes a tap gesture made by the user.

• QTapGesture: The QTapGesture class describes a tap gesture made by the user.

• QTcpServer: The QTcpServer class provides a TCP-based server.

• QTcpServer: The QTcpServer class provides a TCP-based server.

• QTcpSocket: The QTcpSocket class provides a TCP socket.

• QTcpSocket: The QTcpSocket class provides a TCP socket.

• QTemporaryDir: The QTemporaryDir class creates a unique directory for temporary use.

• QTemporaryDir: The QTemporaryDir class creates a unique directory for temporary use.

• QTemporaryFile: The QTemporaryFile class is an I/O device that operates on temporary files.

• QTemporaryFile: The QTemporaryFile class is an I/O device that operates on temporary files.

• QTest::QTouchEventSequence: The QTouchEventSequence class is used to simulate a sequence of touch events.

• QTest::QTouchEventSequence: The QTouchEventSequence class is used to simulate a sequence of touch events.

• QTestEventList: The QTestEventList class provides a list of GUI events.

• QTestEventList: The QTestEventList class provides a list of GUI events.

• QTextBlock: The QTextBlock class provides a container for text fragments in a QTextDocument.

• QTextBlock: The QTextBlock class provides a container for text fragments in a QTextDocument.

• QTextBlockFormat: The QTextBlockFormat class provides formatting information for blocks of text in a QTextDocument.

• QTextBlockFormat: The QTextBlockFormat class provides formatting information for blocks of text in a QTextDocument.

• QTextBlockGroup: The QTextBlockGroup class provides a container for text blocks within a QTextDocument.

• QTextBlockGroup: The QTextBlockGroup class provides a container for text blocks within a QTextDocument.

• QTextBlockUserData: The QTextBlockUserData class is used to associate custom data with blocks of text.

• QTextBlockUserData: The QTextBlockUserData class is used to associate custom data with blocks of text.

• QTextBoundaryFinder: The QTextBoundaryFinder class provides a way of finding Unicode text boundaries in a string.

• QTextBoundaryFinder: The QTextBoundaryFinder class provides a way of finding Unicode text boundaries in a string.

• QTextBrowser: The QTextBrowser class provides a rich text browser with hypertext navigation.

• QTextBrowser: The QTextBrowser class provides a rich text browser with hypertext navigation.

• QTextCharFormat: The QTextCharFormat class provides formatting information for characters in a QTextDocument.

• QTextCharFormat: The QTextCharFormat class provides formatting information for characters in a QTextDocument.

• QTextCodec: The QTextCodec class provides conversions between text encodings.

• QTextCodec: The QTextCodec class provides conversions between text encodings.

• QTextCursor: The QTextCursor class offers an API to access and modify QTextDocuments.

• QTextCursor: The QTextCursor class offers an API to access and modify QTextDocuments.

• QTextDocument: The QTextDocument class holds formatted text.

• QTextDocument: The QTextDocument class holds formatted text.

• QTextDocumentFragment: The QTextDocumentFragment class represents a piece of formatted text from a QTextDocument.

• QTextDocumentFragment: The QTextDocumentFragment class represents a piece of formatted text from a QTextDocument.

• QTextDocumentWriter: The QTextDocumentWriter class provides a format-independent interface for writing a QTextDocument to files or other devices.

• QTextDocumentWriter: The QTextDocumentWriter class provides a format-independent interface for writing a QTextDocument to files or other devices.

• QTextEdit: The QTextEdit class provides a widget that is used to edit and display both plain and rich text.

• QTextEdit: The QTextEdit class provides a widget that is used to edit and display both plain and rich text.

• QTextFormat: The QTextFormat class provides formatting information for a QTextDocument.

• QTextFormat: The QTextFormat class provides formatting information for a QTextDocument.

• QTextFragment: The QTextFragment class holds a piece of text in a QTextDocument with a single QTextCharFormat.

• QTextFragment: The QTextFragment class holds a piece of text in a QTextDocument with a single QTextCharFormat.

• QTextFrame: The QTextFrame class represents a frame in a QTextDocument.

• QTextFrame: The QTextFrame class represents a frame in a QTextDocument.

• QTextFrameFormat: The QTextFrameFormat class provides formatting information for frames in a QTextDocument.

• QTextFrameFormat: The QTextFrameFormat class provides formatting information for frames in a QTextDocument.

• QTextImageFormat: The QTextImageFormat class provides formatting information for images in a QTextDocument.

• QTextImageFormat: The QTextImageFormat class provides formatting information for images in a QTextDocument.

• QTextInlineObject: The QTextInlineObject class represents an inline object in a QAbstractTextDocumentLayout and its implementations.

• QTextInlineObject: The QTextInlineObject class represents an inline object in a QAbstractTextDocumentLayout and its implementations.

• QTextItem: The QTextItem class provides all the information required to draw text in a custom paint engine.

• QTextItem: The QTextItem class provides all the information required to draw text in a custom paint engine.

• QTextLayout: The QTextLayout class is used to lay out and render text.

• QTextLayout: The QTextLayout class is used to lay out and render text.

• QTextLength: The QTextLength class encapsulates the different types of length used in a QTextDocument.

• QTextLength: The QTextLength class encapsulates the different types of length used in a QTextDocument.

• QTextLine: The QTextLine class represents a line of text inside a QTextLayout.

• QTextLine: The QTextLine class represents a line of text inside a QTextLayout.

• QTextList: The QTextList class provides a decorated list of items in a QTextDocument.

• QTextList: The QTextList class provides a decorated list of items in a QTextDocument.

• QTextListFormat: The QTextListFormat class provides formatting information for lists in a QTextDocument.

• QTextListFormat: The QTextListFormat class provides formatting information for lists in a QTextDocument.

• QTextObject: The QTextObject class is a base class for different kinds of objects that can group parts of a QTextDocument together.

• QTextObject: The QTextObject class is a base class for different kinds of objects that can group parts of a QTextDocument together.

• QTextObjectInterface: The QTextObjectInterface class allows drawing of custom text objects in QTextDocuments.

• QTextObjectInterface: The QTextObjectInterface class allows drawing of custom text objects in QTextDocuments.

• QTextOption: The QTextOption class provides a description of general rich text properties.

• QTextOption: The QTextOption class provides a description of general rich text properties.

• QTextStream: The QTextStream class provides a convenient interface for reading and writing text.

• QTextStream: The QTextStream class provides a convenient interface for reading and writing text.

• QTextTable: The QTextTable class represents a table in a QTextDocument.

• QTextTable: The QTextTable class represents a table in a QTextDocument.

• QTextTableCell: The QTextTableCell class represents the properties of a cell in a QTextTable.

• QTextTableCell: The QTextTableCell class represents the properties of a cell in a QTextTable.

• QTextTableCellFormat: The QTextTableCellFormat class provides formatting information for table cells in a QTextDocument.

• QTextTableCellFormat: The QTextTableCellFormat class provides formatting information for table cells in a QTextDocument.

• QTextTableFormat: The QTextTableFormat class provides formatting information for tables in a QTextDocument.

• QTextTableFormat: The QTextTableFormat class provides formatting information for tables in a QTextDocument.

• QThread: The QThread class provides a platform-independent way to manage threads.

• QThread: The QThread class provides a platform-independent way to manage threads.

• QThreadPool: The QThreadPool class manages a collection of QThreads.

• QThreadPool: The QThreadPool class manages a collection of QThreads.

• QThreadStorage: The QThreadStorage class provides per-thread data storage.

• QThreadStorage: The QThreadStorage class provides per-thread data storage.

• QTileRules: The QTileRules class provides the rules used to draw a pixmap or image split into nine segments.

• QTileRules: The QTileRules class provides the rules used to draw a pixmap or image split into nine segments.

• QTime: The QTime class provides clock time functions.

• QTime: The QTime class provides clock time functions.

• QTimeEdit: The QTimeEdit class provides a widget for editing times based on the QDateTimeEdit widget.

• QTimeEdit: The QTimeEdit class provides a widget for editing times based on the QDateTimeEdit widget.

• QTimeLine: The QTimeLine class provides a timeline for controlling animations.

• QTimeLine: The QTimeLine class provides a timeline for controlling animations.

• QTimeZone: The QTimeZone class converts between UTC and local time in a specific time zone.

• QTimeZone: The QTimeZone class converts between UTC and local time in a specific time zone.

• QTimer: The QTimer class provides repetitive and single-shot timers.

• QTimer: The QTimer class provides repetitive and single-shot timers.

• QTimerEvent: The QTimerEvent class contains parameters that describe a timer event.

• QTimerEvent: The QTimerEvent class contains parameters that describe a timer event.

• QToolBar: The QToolBar class provides a movable panel that contains a set of controls.

• QToolBar: The QToolBar class provides a movable panel that contains a set of controls.

• QToolBox: The QToolBox class provides a column of tabbed widget items.

• QToolBox: The QToolBox class provides a column of tabbed widget items.

• QToolButton: The QToolButton class provides a quick-access button to commands or options, usually used inside a QToolBar.

• QToolButton: The QToolButton class provides a quick-access button to commands or options, usually used inside a QToolBar.

• QToolTip: The QToolTip class provides tool tips (balloon help) for any widget.

• QToolTip: The QToolTip class provides tool tips (balloon help) for any widget.

• QTouchEvent: The QTouchEvent class contains parameters that describe a touch event.

• QTouchEvent: The QTouchEvent class contains parameters that describe a touch event.

• QTransform: The QTransform class specifies 2D transformations of a coordinate system.

• QTransform: The QTransform class specifies 2D transformations of a coordinate system.

• QTranslator: The QTranslator class provides internationalization support for text output.

• QTranslator: The QTranslator class provides internationalization support for text output.

• QTransposeProxyModel: This proxy transposes the source model.

• QTransposeProxyModel: This proxy transposes the source model.

• QTreeView: The QTreeView class provides a default model/view implementation of a tree view.

• QTreeView: The QTreeView class provides a default model/view implementation of a tree view.

• QTreeWidget: The QTreeWidget class provides a tree view that uses a predefined tree model.

• QTreeWidget: The QTreeWidget class provides a tree view that uses a predefined tree model.

• QTreeWidgetItem: The QTreeWidgetItem class provides an item for use with the QTreeWidget convenience class.

• QTreeWidgetItem: The QTreeWidgetItem class provides an item for use with the QTreeWidget convenience class.

• QTreeWidgetItemIterator: The QTreeWidgetItemIterator class provides a way to iterate over the items in a QTreeWidget instance.

• QTreeWidgetItemIterator: The QTreeWidgetItemIterator class provides a way to iterate over the items in a QTreeWidget instance.

• QTypeRevision: The QTypeRevision class contains a lightweight representation of a version number with two 8-bit segments, major and minor, either of which can be unknown.

• QTypeRevision: The QTypeRevision class contains a lightweight representation of a version number with two 8-bit segments, major and minor, either of which can be unknown.

• QUdpSocket: The QUdpSocket class provides a UDP socket.

• QUdpSocket: The QUdpSocket class provides a UDP socket.

• QUiLoader: The QUiLoader class enables standalone applications to dynamically create user interfaces at run-time using the information stored in UI files or specified in plugin paths.

• QUndoCommand: The QUndoCommand class is the base class of all commands stored on a QUndoStack.

• QUndoCommand: The QUndoCommand class is the base class of all commands stored on a QUndoStack.

• QUndoGroup: The QUndoGroup class is a group of QUndoStack objects.

• QUndoGroup: The QUndoGroup class is a group of QUndoStack objects.

• QUndoStack: The QUndoStack class is a stack of QUndoCommand objects.

• QUndoStack: The QUndoStack class is a stack of QUndoCommand objects.

• QUndoView: The QUndoView class displays the contents of a QUndoStack.

• QUndoView: The QUndoView class displays the contents of a QUndoStack.

• QUnhandledException: The QUnhandledException class represents an unhandled exception in a Qt Concurrent worker thread.

• QUnhandledException: The QUnhandledException class represents an unhandled exception in a Qt Concurrent worker thread.

• QUrl: The QUrl class provides a convenient interface for working with URLs.

• QUrl: The QUrl class provides a convenient interface for working with URLs.

• QUrlQuery: The QUrlQuery class provides a way to manipulate a key-value pairs in a URL's query.

• QUrlQuery: The QUrlQuery class provides a way to manipulate a key-value pairs in a URL's query.

• QUtf8StringView: The QUtf8StringView class provides a unified view on UTF-8 strings with a read-only subset of the QString API.

• QUtf8StringView: The QUtf8StringView class provides a unified view on UTF-8 strings with a read-only subset of the QString API.

• QUuid: The QUuid class stores a Universally Unique Identifier (UUID).

• QUuid: The QUuid class stores a Universally Unique Identifier (UUID).

• QVBoxLayout: The QVBoxLayout class lines up widgets vertically.

• QVBoxLayout: The QVBoxLayout class lines up widgets vertically.

• QValidator: The QValidator class provides validation of input text.

• QValidator: The QValidator class provides validation of input text.

• QVarLengthArray: The QVarLengthArray class provides a low-level variable-length array.

• QVarLengthArray: The QVarLengthArray class provides a low-level variable-length array.

• QVariant: The QVariant class acts like a union for the most common Qt data types.

• QVariant: The QVariant class acts like a union for the most common Qt data types.

• QVariantAnimation: The QVariantAnimation class provides a base class for animations.

• QVariantAnimation: The QVariantAnimation class provides a base class for animations.

• QVariantConstPointer: Emulated const pointer to QVariant based on a pointer.

• QVariantConstPointer: Emulated const pointer to QVariant based on a pointer.

• QVariantPointer: QVariantPointer is a template class that emulates a pointer to QVariant based on a pointer.

• QVariantPointer: QVariantPointer is a template class that emulates a pointer to QVariant based on a pointer.

• QVariantRef: The QVariantRef acts as a non-const reference to a QVariant.

• QVariantRef: The QVariantRef acts as a non-const reference to a QVariant.

• QVector: QVector is an alias for QList.

• QVector: QVector is an alias for QList.

• QVector2D: The QVector2D class represents a vector or vertex in 2D space.

• QVector2D: The QVector2D class represents a vector or vertex in 2D space.

• QVector3D: The QVector3D class represents a vector or vertex in 3D space.

• QVector3D: The QVector3D class represents a vector or vertex in 3D space.

• QVector4D: The QVector4D class represents a vector or vertex in 4D space.

• QVector4D: The QVector4D class represents a vector or vertex in 4D space.

• QVersionNumber: The QVersionNumber class contains a version number with an arbitrary number of segments.

• QVersionNumber: The QVersionNumber class contains a version number with an arbitrary number of segments.

• QVulkanExtension: Represents information about a Vulkan extension.

• QVulkanExtension: Represents information about a Vulkan extension.

• QVulkanInfoVector: A specialized QList for QVulkanLayer and QVulkanExtension.

• QVulkanInfoVector: A specialized QList for QVulkanLayer and QVulkanExtension.

• QVulkanInstance: The QVulkanInstance class represents a native Vulkan instance, enabling Vulkan rendering onto a QSurface.

• QVulkanInstance: The QVulkanInstance class represents a native Vulkan instance, enabling Vulkan rendering onto a QSurface.

• QVulkanLayer: Represents information about a Vulkan layer.

• QVulkanLayer: Represents information about a Vulkan layer.

• QVulkanWindow: The QVulkanWindow class is a convenience subclass of QWindow to perform Vulkan rendering.

• QVulkanWindow: The QVulkanWindow class is a convenience subclass of QWindow to perform Vulkan rendering.

• QVulkanWindowRenderer: The QVulkanWindowRenderer class is used to implement the application-specific rendering logic for a QVulkanWindow.

• QVulkanWindowRenderer: The QVulkanWindowRenderer class is used to implement the application-specific rendering logic for a QVulkanWindow.

• QWaitCondition: The QWaitCondition class provides a condition variable for synchronizing threads.

• QWaitCondition: The QWaitCondition class provides a condition variable for synchronizing threads.

• QWaylandBufferRef: The QWaylandBufferRef class holds the reference to a surface buffer.

• QWaylandClient: The QWaylandClient class represents a client connecting to the QWaylandCompositor.

• QWaylandIdleInhibitManagerV1: Provides an extension that allows to inhibit the idle behavior of the compositor.

• QWaylandIviApplication: The QWaylandIviApplication class is an extension for embedded-style user interfaces.

• QWaylandQuickShellSurfaceItem: The QWaylandQuickShellSurfaceItem class provides a Qt Quick item that represents a QWaylandShellSurface.

• QWaylandSeat: The QWaylandSeat class provides access to keyboard, mouse, and touch input.

• QWaylandShellSurface: The QWaylandShellSurface class is a common interface for surface roles specified by shell extensions.

• QWaylandSurface: The QWaylandSurface class represents a rectangular area on an output device.

• QWaylandSurfaceGrabber: The QWaylandSurfaceGrabber class allows to read the content of a QWaylandSurface.

• QWaylandTouch: The QWaylandTouch class provides access to a touch device.

• QWaylandXdgPopup: The QWaylandXdgPopup class represents the popup specific parts of an xdg surface.

• QWaylandXdgShell: The QWaylandXdgShell class is an extension for desktop-style user interfaces.

• QWaylandXdgSurface: The QWaylandXdgSurface class provides desktop-style compositor-specific features to an xdg surface.

• QWaylandXdgToplevel: The QWaylandXdgToplevel class represents the toplevel window specific parts of an xdg surface.

• QWeakPointer: The QWeakPointer class holds a weak reference to a shared pointer.

• QWeakPointer: The QWeakPointer class holds a weak reference to a shared pointer.

• QWhatsThis: The QWhatsThis class provides a simple description of any widget, i.e. answering the question "What's This?".

• QWhatsThis: The QWhatsThis class provides a simple description of any widget, i.e. answering the question "What's This?".

• QWhatsThisClickedEvent: The QWhatsThisClickedEvent class provides an event that can be used to handle hyperlinks in a "What's This?" text.

• QWhatsThisClickedEvent: The QWhatsThisClickedEvent class provides an event that can be used to handle hyperlinks in a "What's This?" text.

• QWheelEvent: The QWheelEvent class contains parameters that describe a wheel event.

• QWheelEvent: The QWheelEvent class contains parameters that describe a wheel event.

• QWidget: The QWidget class is the base class of all user interface objects.

• QWidget: The QWidget class is the base class of all user interface objects.

• QWidgetAction: The QWidgetAction class extends QAction by an interface for inserting custom widgets into action based containers, such as toolbars.

• QWidgetAction: The QWidgetAction class extends QAction by an interface for inserting custom widgets into action based containers, such as toolbars.

• QWidgetItem: The QWidgetItem class is a layout item that represents a widget.

• QWidgetItem: The QWidgetItem class is a layout item that represents a widget.

• QWinEventNotifier: The QWinEventNotifier class provides support for the Windows Wait functions.

• QWinEventNotifier: The QWinEventNotifier class provides support for the Windows Wait functions.

• QWindow: The QWindow class represents a window in the underlying windowing system.

• QWindow: The QWindow class represents a window in the underlying windowing system.

• QWindowStateChangeEvent: The QWindowStateChangeEvent class provides the window state before a window state change.

• QWindowStateChangeEvent: The QWindowStateChangeEvent class provides the window state before a window state change.

• QWizard: The QWizard class provides a framework for wizards.

• QWizard: The QWizard class provides a framework for wizards.

• QWizardPage: The QWizardPage class is the base class for wizard pages.

• QWizardPage: The QWizardPage class is the base class for wizard pages.

• QWriteLocker: The QWriteLocker class is a convenience class that simplifies locking and unlocking read-write locks for write access.

• QWriteLocker: The QWriteLocker class is a convenience class that simplifies locking and unlocking read-write locks for write access.

• QXmlStreamAttribute: The QXmlStreamAttribute class represents a single XML attribute.

• QXmlStreamAttribute: The QXmlStreamAttribute class represents a single XML attribute.

• QXmlStreamAttributes: The QXmlStreamAttributes class represents a vector of QXmlStreamAttribute.

• QXmlStreamAttributes: The QXmlStreamAttributes class represents a vector of QXmlStreamAttribute.

• QXmlStreamEntityDeclaration: The QXmlStreamEntityDeclaration class represents a DTD entity declaration.

• QXmlStreamEntityDeclaration: The QXmlStreamEntityDeclaration class represents a DTD entity declaration.

• QXmlStreamEntityResolver: The QXmlStreamEntityResolver class provides an entity resolver for a QXmlStreamReader.

• QXmlStreamEntityResolver: The QXmlStreamEntityResolver class provides an entity resolver for a QXmlStreamReader.

• QXmlStreamNamespaceDeclaration: The QXmlStreamNamespaceDeclaration class represents a namespace declaration.

• QXmlStreamNamespaceDeclaration: The QXmlStreamNamespaceDeclaration class represents a namespace declaration.

• QXmlStreamNotationDeclaration: The QXmlStreamNotationDeclaration class represents a DTD notation declaration.

• QXmlStreamNotationDeclaration: The QXmlStreamNotationDeclaration class represents a DTD notation declaration.

• QXmlStreamReader: The QXmlStreamReader class provides a fast parser for reading well-formed XML via a simple streaming API.

• QXmlStreamReader: The QXmlStreamReader class provides a fast parser for reading well-formed XML via a simple streaming API.

• QXmlStreamWriter: The QXmlStreamWriter class provides an XML writer with a simple streaming API.

• QXmlStreamWriter: The QXmlStreamWriter class provides an XML writer with a simple streaming API.

• QtConcurrent::QTaskBuilder: The QTaskBuilder class is used for adjusting task parameters.

• QtConcurrent::QTaskBuilder: The QTaskBuilder class is used for adjusting task parameters.

• qfloat16: Provides 16-bit floating point support.

• qfloat16: Provides 16-bit floating point support.