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Qt GUI Framework Edition Classes |
| QtConcurrent::Exception | Base class for exceptions that can transferred across threads |
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| Q3Accel | Handles keyboard accelerator and shortcut keys |
| Q3Action | Abstract user interface action that can appear both in menus and tool bars |
| Q3ActionGroup | Groups actions together |
| Q3AsciiCache | Template class that provides a cache based on char* keys |
| Q3AsciiCacheIterator | Iterator for Q3AsciiCache collections |
| Q3AsciiDict | Template class that provides a dictionary based on char* keys |
| Q3AsciiDictIterator | Iterator for Q3AsciiDict collections |
| Q3Button | Compatibility base class of button widgets |
| Q3ButtonGroup | Organizes QAbstractButton widgets in a group |
| Q3CString | Abstraction of the classic C zero-terminated char array (char *) |
| Q3Cache | Template class that provides a cache based on QString keys |
| Q3CacheIterator | Iterator for Q3Cache collections |
| Q3CheckListItem | Checkable list view items |
| Q3ColorDrag | Drag and drop object for transferring colors between widgets |
| Q3ComboBox | Combined button and popup list |
| Q3DateEdit | Date editor |
| Q3DateTimeEdit | Combines a Q3DateEdit and Q3TimeEdit widget into a single widget for editing datetimes |
| Q3DateTimeEditBase | Abstraction for date and edit editors |
| Q3DeepCopy | Template class which ensures that implicitly shared and explicitly shared classes reference unique data |
| Q3Dict | Template class that provides a dictionary based on QString keys |
| Q3DictIterator | Iterator for Q3Dict collections |
| Q3DockArea | Manages and lays out Q3DockWindows |
| Q3DockWindow | Widget which can be docked inside a Q3DockArea or floated as a top level window on the desktop |
| Q3DragObject | Encapsulates MIME-based data transfer |
| Q3DropSite | Nothing and does nothing |
| Q3FileDialog | Dialogs that allow users to select files or directories |
| Q3FileIconProvider | Icons for Q3FileDialog to use |
| Q3FilePreview | File previewing in Q3FileDialog |
| Q3Frame | |
| Q3Grid | Simple geometry management of its children |
| Q3GridView | Abstract base for fixed-size grids |
| Q3GroupBox | Group box frame with a title |
| Q3HBox | Horizontal geometry management for its child widgets |
| Q3HBoxLayout | Lines up widgets horizontally |
| Q3HButtonGroup | Organizes button widgets in a group with one horizontal row |
| Q3HGroupBox | Organizes widgets in a group with one horizontal row |
| Q3Header | Header row or column, e.g. for tables and listviews |
| Q3IconDrag | Supports drag and drop operations within a Q3IconView |
| Q3IconDragItem | Encapsulates a drag item |
| Q3IconView | Area with movable labelled icons |
| Q3IconViewItem | Single item in a Q3IconView |
| Q3ImageDrag | Drag and drop object for transferring images |
| Q3IntCache | Template class that provides a cache based on long keys |
| Q3IntCacheIterator | Iterator for Q3IntCache collections |
| Q3IntDict | Template class that provides a dictionary based on long keys |
| Q3IntDictIterator | Iterator for Q3IntDict collections |
| Q3ListBox | List of selectable, read-only items |
| Q3ListBoxItem | The base class of all list box items |
| Q3ListBoxPixmap | List box items with a pixmap and optional text |
| Q3ListBoxText | List box items that display text |
| Q3ListView | Implements a list/tree view |
| Q3ListViewItem | Implements a list view item |
| Q3ListViewItemIterator | Iterator for collections of Q3ListViewItems |
| Q3LocalFs | Implementation of a QNetworkProtocol that works on the local file system |
| Q3MainWindow | Main application window, with a menu bar, dock windows (e.g. for toolbars), and a status bar |
| Q3MemArray | Template class that provides arrays of simple types |
| Q3MimeSourceFactory | Extensible provider of mime-typed data |
| Q3MultiLineEdit | Simple editor for inputting text |
| Q3NetworkOperation | Common operations for network protocols |
| Q3NetworkProtocol | Common API for network protocols |
| Q3PaintDeviceMetrics | Information about a paint device |
| Q3Painter | Qt 3 compatibility wrapper for QPainter |
| Q3Picture | Paint device that records and replays Q3Painter commands |
| Q3PointArray | |
| Q3PopupMenu | Thin compatibility wrapper around QMenu |
| Q3Process | Used to start external programs and to communicate with them |
| Q3ProgressBar | Horizontal progress bar |
| Q3ProgressDialog | Feedback on the progress of a slow operation |
| Q3PtrCollection | The base class of most pointer-based Qt collections |
| Q3PtrDict | Template class that provides a dictionary based on void* keys |
| Q3PtrDictIterator | Iterator for Q3PtrDict collections |
| Q3PtrList | Template class that provides a list |
| Q3PtrListIterator | Iterator for Q3PtrList collections |
| Q3PtrQueue | Template class that provides a queue |
| Q3PtrStack | Template class that provides a stack |
| Q3PtrVector | Template collection class that provides a vector (array) |
| Q3RangeControl | Integer value within a range |
| Q3ScrollView | Scrolling area with on-demand scroll bars |
| Q3Semaphore | Robust integer semaphore |
| Q3Shared | Used internally for implementing shared classes |
| Q3Signal | Can be used to send signals for classes that don't inherit QObject |
| Q3SimpleRichText | Small displayable piece of rich text |
| Q3StoredDrag | Simple stored-value drag object for arbitrary MIME data |
| Q3StrIList | Doubly-linked list of char* with case-insensitive comparison |
| Q3StrList | Doubly-linked list of char* |
| Q3StrListIterator | Iterator for the Q3StrList and Q3StrIList classes |
| Q3StyleSheet | Collection of styles for rich text rendering and a generator of tags |
| Q3StyleSheetItem | Encapsulation of a set of text styles |
| Q3SyntaxHighlighter | Base class for implementing Q3TextEdit syntax highlighters |
| Q3TabDialog | Stack of tabbed widgets |
| Q3TextBrowser | Rich text browser with hypertext navigation |
| Q3TextDrag | Drag and drop object for transferring plain and Unicode text |
| Q3TextEdit | Powerful single-page rich text editor |
| Q3TextStream | Basic functions for reading and writing text using a QIODevice |
| Q3TextView | Rich text viewer |
| Q3TimeEdit | Time editor |
| Q3ToolBar | Movable panel containing widgets such as tool buttons |
| Q3UriDrag | Drag object for a list of URI references |
| Q3Url | URL parser and simplifies working with URLs |
| Q3UrlOperator | Common operations on URLs |
| Q3VBox | Vertical geometry management of its child widgets |
| Q3VBoxLayout | Lines up widgets vertically |
| Q3VButtonGroup | Organizes button widgets in a vertical column |
| Q3VGroupBox | Organizes widgets in a group with one vertical column |
| Q3ValueList | Value-based template class that provides lists |
| Q3ValueListConstIterator | Const iterator for Q3ValueList |
| Q3ValueListIterator | Iterator for Q3ValueList |
| Q3ValueStack | Value-based template class that provides a stack |
| Q3ValueVector | Value-based template class that provides a dynamic array |
| Q3WhatsThis | |
| Q3WidgetStack | Stack of widgets of which only the top widget is user-visible |
| Q3Wizard | Framework for wizard dialogs |
| QAbstractButton | The abstract base class of button widgets, providing functionality common to buttons |
| QAbstractEventDispatcher | Interface to manage Qt's event queue |
| QAbstractFileEngine | Abstraction for accessing the filesystem |
| QAbstractFileEngineHandler | Way to register custom file engines with your application |
| QAbstractFileEngineIterator | Iterator interface for custom file engines |
| QAbstractFontEngine | The base class for font engine plugins in Qt for Embedded Linux |
| QAbstractGraphicsShapeItem | Common base for all path items |
| QAbstractItemDelegate | Used to display and edit data items from a model |
| QAbstractItemModel | The abstract interface for item model classes |
| QAbstractItemView | The basic functionality for item view classes |
| QAbstractListModel | Abstract model that can be subclassed to create one-dimensional list models |
| QAbstractPrintDialog | Base implementation for print dialogs used to configure printers |
| QAbstractProxyModel | Base class for proxy item models that can do sorting, filtering or other data processing tasks |
| QAbstractScrollArea | Scrolling area with on-demand scroll bars |
| QAbstractSlider | Integer value within a range |
| QAbstractSpinBox | Spinbox and a line edit to display values |
| QAbstractTableModel | Abstract model that can be subclassed to create table models |
| QAbstractTextDocumentLayout | Abstract base class used to implement custom layouts for QTextDocuments |
| QAccessible | Enums and static functions relating to accessibility |
| QAccessibleBridge | The base class for accessibility back-ends |
| QAccessibleBridgePlugin | Abstract base for accessibility bridge plugins |
| QAccessibleEvent | Used to query addition accessibility information about complex widgets |
| QAccessibleInterface | Defines an interface that exposes information about accessible objects |
| QAccessibleObject | Implements parts of the QAccessibleInterface for QObjects |
| QAccessiblePlugin | Abstract base for accessibility plugins |
| QAccessibleWidget | Implements the QAccessibleInterface for QWidgets |
| QAction | Abstract user interface action that can be inserted into widgets |
| QActionEvent | Event that is generated when a QAction is added, removed, or changed |
| QActionGroup | Groups actions together |
| QApplication | Manages the GUI application's control flow and main settings |
| QAtomicInt | Platform-independent atomic operations on integers |
| QAtomicPointer | Template class that provides platform-independent atomic operations on pointers |
| QBasicTimer | Timer events for objects |
| QBitArray | Array of bits |
| QBitmap | Monochrome (1-bit depth) pixmaps |
| QBoxLayout | Lines up child widgets horizontally or vertically |
| QBrush | Defines the fill pattern of shapes drawn by QPainter |
| QBuffer | QIODevice interface for a QByteArray |
| QButtonGroup | Container to organize groups of button widgets |
| QByteArray | Array of bytes |
| QByteArrayMatcher | Holds a sequence of bytes that can be quickly matched in a byte array |
| QCDEStyle | CDE look and feel |
| QCache | Template class that provides a cache |
| QCalendarWidget | Monthly based calendar widget allowing the user to select a date |
| QChar | 16-bit Unicode character |
| QCheckBox | Checkbox with a text label |
| QChildEvent | Contains event parameters for child object events |
| QCleanlooksStyle | Widget style similar to the Clearlooks style available in GNOME |
| QClipboard | Access to the window system clipboard |
| QCloseEvent | Contains parameters that describe a close event |
| QColor | Colors based on RGB, HSV or CMYK values |
| QColorDialog | Dialog widget for specifying colors |
| QColorGroup | Contains color groups for each widget state |
| QColormap | Maps device independent QColors to device dependent pixel values |
| QColumnView | Model/view implementation of a column view |
| QComboBox | Combined button and popup list |
| QCommandLinkButton | Vista style command link button |
| QCommonStyle | Encapsulates the common Look and Feel of a GUI |
| QCompleter | Completions based on an item model |
| QConicalGradient | Used in combination with QBrush to specify a conical gradient brush |
| QConstString | Wrapper for constant Unicode string data |
| QContextMenuEvent | Contains parameters that describe a context menu event |
| QCopChannel | Communication capabilities between clients in |
| QCoreApplication | Event loop for console Qt applications |
| QCryptographicHash | Way to generate cryptographic hashes |
| QCursor | Mouse cursor with an arbitrary shape |
| QCustomEvent | Support for custom events |
| QCustomRasterPaintDevice | Provided to activate hardware accelerated paint engines in Qt for Embedded Linux |
| QDBusAbstractAdaptor | The base class of D-Bus adaptor classes |
| QDBusAbstractInterface | The base class for all D-Bus interfaces in the QtDBus binding, allowing access to remote interfaces |
| QDBusArgument | Used to marshall and demarshall D-Bus arguments |
| QDBusConnection | Represents a connection to the D-Bus bus daemon |
| QDBusConnectionInterface | Access to the D-Bus bus daemon service |
| QDBusContext | Allows slots to determine the D-Bus context of the calls |
| QDBusError | Represents an error received from the D-Bus bus or from remote applications found in the bus |
| QDBusInterface | Proxy for interfaces on remote objects |
| QDBusMessage | Represents one message sent or received over the D-Bus bus |
| QDBusObjectPath | Enables the programmer to identify the |
| QDBusReply | Stores the reply for a method call to a remote object |
| QDBusServer | Peer-to-peer communication between processes on the same computer |
| QDBusSignature | Enables the programmer to identify the |
| QDBusVariant | Enables the programmer to identify the variant type provided by the D-Bus typesystem |
| QDataStream | Serialization of binary data to a QIODevice |
| QDataWidgetMapper | Mapping between a section of a data model to widgets |
| QDate | Date functions |
| QDateEdit | Widget for editing dates based on the QDateTimeEdit widget |
| QDateTime | Date and time functions |
| QDateTimeEdit | Widget for editing dates and times |
| QDecoration | Base class for window decorations in Qt for Embedded Linux |
| QDecorationDefault | Base class providing default window decorations |
| QDecorationFactory | Creates window decorations in Qt for Embedded Linux |
| QDecorationPlugin | Abstract base class for window decoration plugins in Qt for Embedded Linux |
| QDesktopServices | Methods for accessing common desktop services |
| QDesktopWidget | Access to screen information on multi-head systems |
| QDial | Rounded range control (like a speedometer or potentiometer) |
| QDialog | The base class of dialog windows |
| QDialogButtonBox | Widget that presents buttons in a layout that is appropriate to the current widget style |
| QDir | Access to directory structures and their contents |
| QDirIterator | Iterator for directory entrylists |
| QDirModel | Data model for the local filesystem |
| QDirectPainter | Direct access to the underlying hardware in Qt for Embedded Linux |
| QDockWidget | Widget that can be docked inside a QMainWindow or floated as a top-level window on the desktop |
| QDoubleSpinBox | Spin box widget that takes doubles |
| QDoubleValidator | Range checking of floating-point numbers |
| QDrag | Support for MIME-based drag and drop data transfer |
| QDragEnterEvent | Event which is sent to a widget when a drag and drop action enters it |
| QDragLeaveEvent | Event that is sent to a widget when a drag and drop action leaves it |
| QDragMoveEvent | Event which is sent while a drag and drop action is in progress |
| QDropEvent | Event which is sent when a drag and drop action is completed |
| QDynamicPropertyChangeEvent | Contains event parameters for dynamic property change events |
| QErrorMessage | Error message display dialog |
| QEvent | The base class of all event classes. Event objects contain event parameters |
| QEventLoop | Means of entering and leaving an event loop |
| QExplicitlySharedDataPointer | Represents a pointer to an explicitly shared object |
| QFSFileEngine | Implements Qt's default file engine |
| QFile | Interface for reading from and writing to files |
| QFileDialog | Dialog that allow users to select files or directories |
| QFileIconProvider | File icons for the QDirModel class |
| QFileInfo | System-independent file information |
| QFileOpenEvent | Event that will be sent when there is a request to open a file |
| QFileSystemModel | Data model for the local filesystem |
| QFileSystemWatcher | Interface for monitoring files and directories for modifications |
| QFlag | Helper data type for QFlags |
| QFlags | Type-safe way of storing OR-combinations of enum values |
| QFocusEvent | Contains event parameters for widget focus events |
| QFocusFrame | Focus frame which can be outside of a widget's normal paintable area |
| QFont | Specifies a font used for drawing text |
| QFontComboBox | Combobox that lets the user select a font family |
| QFontDatabase | Information about the fonts available in the underlying window system |
| QFontDialog | Dialog widget for selecting a font |
| QFontEngineInfo | Describes a specific font provided by a font engine plugin |
| QFontEnginePlugin | The base class for font engine factory plugins in Qt for Embedded Linux |
| QFontInfo | General information about fonts |
| QFontMetrics | Font metrics information |
| QFontMetricsF | Font metrics information |
| QFormLayout | Manages forms of input widgets and their associated labels |
| QFrame | The base class of widgets that can have a frame |
| QFuture | Represents the result of an asynchronous computation |
| QFutureSynchronizer | Convenience class that simplifies QFuture synchronization |
| QFutureWatcher | Allows monitoring a QFuture using signals and slots |
| QGenericArgument | Internal helper class for marshalling arguments |
| QGenericReturnArgument | Internal helper class for marshalling arguments |
| QGradient | Used in combination with QBrush to specify gradient fills |
| QGridLayout | Lays out widgets in a grid |
| QGroupBox | Group box frame with a title |
| QHBoxLayout | Lines up widgets horizontally |
| QHash | Template class that provides a hash-table-based dictionary |
| QHashIterator | Java-style const iterator for QHash and QMultiHash |
| QHeaderView | Header row or header column for item views |
| QHelpEvent | Event that is used to request helpful information about a particular point in a widget |
| QHideEvent | Event which is sent after a widget is hidden |
| QHoverEvent | Contains parameters that describe a mouse event |
| QIODevice | The base interface class of all I/O devices in Qt |
| QIcon | Scalable icons in different modes and states |
| QIconDragEvent | Indicates that a main icon drag has begun |
| QIconEngine | Abstract base class for QIcon renderers |
| QIconEnginePlugin | Abstract base for custom QIconEngine plugins |
| QIconEnginePluginV2 | Abstract base for custom QIconEngineV2 plugins |
| QIconEngineV2 | Abstract base class for QIcon renderers |
| QImage | Hardware-independent image representation that allows direct access to the pixel data, and can be used as a paint device |
| QImageIOHandler | Defines the common image I/O interface for all image formats in Qt |
| QImageIOPlugin | Defines an interface for writing an image format plugin |
| QImageReader | Format independent interface for reading images from files or other devices |
| QImageWriter | Format independent interface for writing images to files or other devices |
| QInputContext | Abstracts the input method dependent data and composing state |
| QInputContextFactory | Creates QInputContext objects |
| QInputContextPlugin | Abstract base for custom QInputContext plugins |
| QInputDialog | Simple convenience dialog to get a single value from the user |
| QInputEvent | The base class for events that describe user input |
| QInputMethodEvent | Parameters for input method events |
| QIntValidator | Validator that ensures a string contains a valid integer within a specified range |
| QItemDelegate | Display and editing facilities for data items from a model |
| QItemEditorCreator | Makes it possible to create item editor creator bases without subclassing QItemEditorCreatorBase |
| QItemEditorCreatorBase | Abstract base class that must be subclassed when implementing new item editor creators |
| QItemEditorFactory | Widgets for editing item data in views and delegates |
| QItemSelection | Manages information about selected items in a model |
| QItemSelectionModel | Keeps track of a view's selected items |
| QItemSelectionRange | Manages information about a range of selected items in a model |
| QKbdDriverFactory | Creates keyboard drivers in Qt for Embedded Linux |
| QKbdDriverPlugin | Abstract base class for keyboard driver plugins in Qt for Embedded Linux |
| QKeyEvent | Describes a key event |
| QKeySequence | Encapsulates a key sequence as used by shortcuts |
| QLCDNumber | Displays a number with LCD-like digits |
| QLabel | Text or image display |
| QLatin1Char | 8-bit ASCII/Latin-1 character |
| QLatin1String | Thin wrapper around an ASCII/Latin-1 encoded string literal |
| QLayout | The base class of geometry managers |
| QLayoutItem | Abstract item that a QLayout manipulates |
| QLibrary | Loads shared libraries at runtime |
| QLibraryInfo | Information about the Qt library |
| QLine | Two-dimensional vector using integer precision |
| QLineEdit | One-line text editor |
| QLineF | Two-dimensional vector using floating point precision |
| QLinearGradient | Used in combination with QBrush to specify a linear gradient brush |
| QLinkedList | Template class that provides linked lists |
| QLinkedListIterator | Java-style const iterator for QLinkedList |
| QList | Template class that provides lists |
| QListIterator | Java-style const iterator for QList and QQueue |
| QListView | List or icon view onto a model |
| QListWidget | Item-based list widget |
| QListWidgetItem | Item for use with the QListWidget item view class |
| QLocale | Converts between numbers and their string representations in various languages |
| QMacPasteboardMime | Maps open-standard MIME to Mac flavors |
| QMacStyle | Mac OS X style using the Apple Appearance Manager |
| QMainWindow | Main application window |
| QMap | Template class that provides a skip-list-based dictionary |
| QMapIterator | Java-style const iterator for QMap and QMultiMap |
| QMatrix | Specifies 2D transformations of a coordinate system |
| QMdiArea | Area in which MDI windows are displayed |
| QMdiSubWindow | Subwindow class for QMdiArea |
| QMenu | Menu widget for use in menu bars, context menus, and other popup menus |
| QMenuBar | Horizontal menu bar |
| QMenuItem | Represents an item in a menu |
| QMessageBox | Modal dialog for informing the user or for asking the user a question and receiving an answer |
| QMetaClassInfo | Additional information about a class |
| QMetaEnum | Meta-data about an enumerator |
| QMetaMethod | Meta-data about a member function |
| QMetaObject | Contains meta-information about Qt objects |
| QMetaProperty | Meta-data about a property |
| QMetaType | Manages named types in the meta-object system |
| QMimeData | Container for data that records information about its MIME type |
| QMimeSource | Abstraction of objects that provided formatted data of a certain MIME type |
| QModelIndex | Used to locate data in a data model |
| QMotifStyle | Motif look and feel |
| QMouseDriverFactory | Creates mouse drivers in Qt for Embedded Linux |
| QMouseDriverPlugin | Abstract base class for mouse driver plugins in Qt for Embedded Linux |
| QMouseEvent | Contains parameters that describe a mouse event |
| QMoveEvent | Contains event parameters for move events |
| QMovie | Convenience class for playing movies with QImageReader |
| QMultiHash | Convenience QHash subclass that provides multi-valued hashes |
| QMultiMap | Convenience QMap subclass that provides multi-valued maps |
| QMutableHashIterator | Java-style non-const iterator for QHash and QMultiHash |
| QMutableLinkedListIterator | Java-style non-const iterator for QLinkedList |
| QMutableListIterator | Java-style non-const iterator for QList and QQueue |
| QMutableMapIterator | Java-style non-const iterator for QMap and QMultiMap |
| QMutableSetIterator | Java-style non-const iterator for QSet |
| QMutableVectorIterator | Java-style non-const iterator for QVector and QStack |
| QMutex | Access serialization between threads |
| QMutexLocker | Convenience class that simplifies locking and unlocking mutexes |
| QObject | The base class of all Qt objects |
| QObjectCleanupHandler | Watches the lifetime of multiple QObjects |
| QPageSetupDialog | Configuration dialog for the page-related options on a printer |
| QPaintDevice | The base class of objects that can be painted |
| QPaintEngine | Abstract definition of how QPainter draws to a given device on a given platform |
| QPaintEngineState | Information about the active paint engine's current state |
| QPaintEvent | Contains event parameters for paint events |
| QPainter | Performs low-level painting on widgets and other paint devices |
| QPainterPath | Container for painting operations, enabling graphical shapes to be constructed and reused |
| QPainterPathStroker | Used to generate fillable outlines for a given painter path |
| QPair | Template class that stores a pair of items |
| QPalette | Contains color groups for each widget state |
| QPen | Defines how a QPainter should draw lines and outlines of shapes |
| QPersistentModelIndex | Used to locate data in a data model |
| QPicture | Paint device that records and replays QPainter commands |
| QPictureFormatPlugin | Abstract base for custom picture format plugins |
| QPictureIO | Contains parameters for loading and saving pictures |
| QPixmap | Off-screen image representation that can be used as a paint device |
| QPixmapCache | Application-wide cache for pixmaps |
| QPlainTextDocumentLayout | Implements a plain text layout for QTextDocument |
| QPlainTextEdit | Widget that is used to edit and display plain text |
| QPlastiqueStyle | Widget style similar to the Plastik style available in KDE |
| QPluginLoader | Loads a plugin at run-time |
| QPoint | Defines a point in the plane using integer precision |
| QPointF | Defines a point in the plane using floating point precision |
| QPointer | Template class that provides guarded pointers to QObjects |
| QPolygon | Vector of points using integer precision |
| QPolygonF | Vector of points using floating point precision |
| QPrintDialog | Dialog for specifying the printer's configuration |
| QPrintEngine | Defines an interface for how QPrinter interacts with a given printing subsystem |
| QPrintPreviewDialog | Dialog for previewing and configuring page layouts for printer output |
| QPrintPreviewWidget | Widget for previewing page layouts for printer output |
| QPrinter | Paint device that paints on a printer |
| QPrinterInfo | Gives access to information about existing printers |
| QProcess | Used to start external programs and to communicate with them |
| QProgressBar | Horizontal or vertical progress bar |
| QProgressDialog | Feedback on the progress of a slow operation |
| QProxyModel | Support for processing data passed between another model and a view |
| QProxyScreen | Generic interface to QScreen implementations |
| QPushButton | Command button |
| QQueue | Generic container that provides a queue |
| QRadialGradient | Used in combination with QBrush to specify a radial gradient brush |
| QRadioButton | Radio button with a text label |
| QRasterPaintEngine | Enables hardware acceleration of painting operations in Qt for Embedded Linux |
| QReadLocker | Convenience class that simplifies locking and unlocking read-write locks for read access |
| QReadWriteLock | Read-write locking |
| QRect | Defines a rectangle in the plane using integer precision |
| QRectF | Defines a rectangle in the plane using floating point precision |
| QRegExp | Pattern matching using regular expressions |
| QRegExpValidator | Used to check a string against a regular expression |
| QRegion | Specifies a clip region for a painter |
| QResizeEvent | Contains event parameters for resize events |
| QResource | Interface for reading directly from resources |
| QRubberBand | Rectangle or line that can indicate a selection or a boundary |
| QRunnable | The base class for all runnable objects |
| QScreen | Base class for screen drivers in Qt for Embedded Linux |
| QScreenCursor | Base class for screen cursors in Qt for Embedded Linux |
| QScreenDriverFactory | Creates screen drivers in Qt for Embedded Linux |
| QScreenDriverPlugin | Abstract base class for screen driver plugins in Qt for Embedded Linux |
| QScrollArea | Scrolling view onto another widget |
| QScrollBar | Vertical or horizontal scroll bar |
| QSemaphore | General counting semaphore |
| QSessionManager | Access to the session manager |
| QSet | Template class that provides a hash-table-based set |
| QSetIterator | Java-style const iterator for QSet |
| QSettings | Persistent platform-independent application settings |
| QSharedData | Base class for shared data objects |
| QSharedDataPointer | Represents a pointer to an implicitly shared object |
| QSharedMemory | Access to a shared memory segment |
| QShortcut | Used to create keyboard shortcuts |
| QShortcutEvent | Event which is generated when the user presses a key combination |
| QShowEvent | Event that is sent when a widget is shown |
| QSignalMapper | Bundles signals from identifiable senders |
| QSignalSpy | Enables introspection of signal emission |
| QSize | Defines the size of a two-dimensional object using integer point precision |
| QSizeF | Defines the size of a two-dimensional object using floating point precision |
| QSizeGrip | Resize handle for resizing top-level windows |
| QSizePolicy | Layout attribute describing horizontal and vertical resizing policy |
| QSlider | Vertical or horizontal slider |
| QSocketNotifier | Support for monitoring activity on a file descriptor |
| QSortFilterProxyModel | Support for sorting and filtering data passed between another model and a view |
| QSound | Access to the platform audio facilities |
| QSpacerItem | Blank space in a layout |
| QSpinBox | Spin box widget |
| QSplashScreen | Splash screen that can be shown during application startup |
| QSplitter | Implements a splitter widget |
| QSplitterHandle | Handle functionality of the splitter |
| QStack | Template class that provides a stack |
| QStackedLayout | Stack of widgets where only one widget is visible at a time |
| QStackedWidget | Stack of widgets where only one widget is visible at a time |
| QStandardItem | Item for use with the QStandardItemModel class |
| QStandardItemEditorCreator | The possibility to register widgets without having to subclass QItemEditorCreatorBase |
| QStandardItemModel | Generic model for storing custom data |
| QStatusBar | Horizontal bar suitable for presenting status information |
| QStatusTipEvent | Event that is used to show messages in a status bar |
| QString | Unicode character string |
| QStringList | List of strings |
| QStringListModel | Model that supplies strings to views |
| QStringMatcher | Holds a sequence of characters that can be quickly matched in a Unicode string |
| QStringRef | Thin wrapper around QString substrings |
| QStyle | Abstract base class that encapsulates the look and feel of a GUI |
| QStyleFactory | Creates QStyle objects |
| QStyleHintReturn | Style hints that return more than basic data types |
| QStyleHintReturnMask | Style hints that return a QRegion |
| QStyleHintReturnVariant | Style hints that return a QVariant |
| QStyleOption | Stores the parameters used by QStyle functions |
| QStyleOptionButton | Used to describe the parameters for drawing buttons |
| QStyleOptionComboBox | Used to describe the parameter for drawing a combobox |
| QStyleOptionComplex | Used to hold parameters that are common to all complex controls |
| QStyleOptionDockWidget | Used to describe the parameters for drawing a dock widget |
| QStyleOptionFocusRect | Used to describe the parameters for drawing a focus rectangle with QStyle |
| QStyleOptionFrame | Used to describe the parameters for drawing a frame |
| QStyleOptionFrameV2 | Used to describe the parameters necessary for drawing a frame in Qt 4.1 or above |
| QStyleOptionGraphicsItem | Used to describe the parameters needed to draw a QGraphicsItem |
| QStyleOptionGroupBox | Describes the parameters for drawing a group box |
| QStyleOptionHeader | Used to describe the parameters for drawing a header |
| QStyleOptionMenuItem | Used to describe the parameter necessary for drawing a menu item |
| QStyleOptionProgressBar | Used to describe the parameters necessary for drawing a progress bar |
| QStyleOptionProgressBarV2 | Used to describe the parameters necessary for drawing a progress bar in Qt 4.1 or above |
| QStyleOptionQ3DockWindow | Used to describe the parameters for drawing various parts of a |
| QStyleOptionQ3ListView | Used to describe the parameters for drawing a Q3ListView |
| QStyleOptionQ3ListViewItem | Used to describe an item drawn in a Q3ListView |
| QStyleOptionRubberBand | Used to describe the parameters needed for drawing a rubber band |
| QStyleOptionSizeGrip | Used to describe the parameter for drawing a size grip |
| QStyleOptionSlider | Used to describe the parameters needed for drawing a slider |
| QStyleOptionSpinBox | Used to describe the parameters necessary for drawing a spin box |
| QStyleOptionTab | Used to describe the parameters for drawing a tab bar |
| QStyleOptionTabBarBase | Used to describe the base of a tab bar, i.e. the part that the tab bar usually overlaps with |
| QStyleOptionTabV2 | Used to describe the parameters necessary for drawing a tabs in Qt 4.1 or above |
| QStyleOptionTabWidgetFrame | Used to describe the parameters for drawing the frame around a tab widget |
| QStyleOptionTitleBar | Used to describe the parameters for drawing a title bar |
| QStyleOptionToolBar | Used to describe the parameters for drawing a toolbar |
| QStyleOptionToolBox | Used to describe the parameters needed for drawing a tool box |
| QStyleOptionToolBoxV2 | Used to describe the parameters necessary for drawing a frame in Qt 4.3 or above |
| QStyleOptionToolButton | Used to describe the parameters for drawing a tool button |
| QStyleOptionViewItem | Used to describe the parameters used to draw an item in a view widget |
| QStyleOptionViewItemV2 | Used to describe the parameters necessary for drawing a frame in Qt 4.2 or above |
| QStyleOptionViewItemV4 | Used to describe the parameters necessary for drawing a frame in Qt 4.4 or above |
| QStylePainter | Convenience class for drawing QStyle elements inside a widget |
| QStylePlugin | Abstract base for custom QStyle plugins |
| QStyledItemDelegate | Display and editing facilities for data items from a model |
| QSyntaxHighlighter | 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 | Information about the system |
| QSystemLocale | Can be used to finetune the system locale of the user |
| QSystemSemaphore | General counting system semaphore |
| QSystemTrayIcon | Icon for an application in the system tray |
| QTabBar | Tab bar, e.g. for use in tabbed dialogs |
| QTabWidget | Stack of tabbed widgets |
| QTableView | Default model/view implementation of a table view |
| QTableWidget | Item-based table view with a default model |
| QTableWidgetItem | Item for use with the QTableWidget class |
| QTableWidgetSelectionRange | Way to interact with selection in a model without using model indexes and a selection model |
| QTabletEvent | Contains parameters that describe a Tablet event |
| QTemporaryFile | I/O device that operates on temporary files |
| QTestEventList | List of GUI events |
| QTextBlock | Container for text fragments in a QTextDocument |
| QTextBlockFormat | Formatting information for blocks of text in a QTextDocument |
| QTextBlockGroup | Container for text blocks within a QTextDocument |
| QTextBlockUserData | Used to associate custom data with blocks of text |
| QTextBoundaryFinder | Way of finding Unicode text boundaries in a string |
| QTextBrowser | Rich text browser with hypertext navigation |
| QTextCharFormat | Formatting information for characters in a QTextDocument |
| QTextCodec | Conversions between text encodings |
| QTextCodecPlugin | Abstract base for custom QTextCodec plugins |
| QTextCursor | Offers an API to access and modify QTextDocuments |
| QTextDecoder | State-based decoder |
| QTextDocument | Holds formatted text that can be viewed and edited using a QTextEdit |
| QTextDocumentFragment | Represents a piece of formatted text from a QTextDocument |
| QTextEdit | Widget that is used to edit and display both plain and rich text |
| QTextEncoder | State-based encoder |
| QTextFormat | Formatting information for a QTextDocument |
| QTextFragment | Holds a piece of text in a QTextDocument with a single QTextCharFormat |
| QTextFrame | Represents a frame in a QTextDocument |
| QTextFrameFormat | Formatting information for frames in a QTextDocument |
| QTextIStream | Convenience class for input streams |
| QTextImageFormat | Formatting information for images in a QTextDocument |
| QTextInlineObject | Represents an inline object in a QTextLayout |
| QTextItem | All the information required to draw text in a custom paint engine |
| QTextLayout | Used to lay out and paint a single paragraph of text |
| QTextLength | Encapsulates the different types of length used in a QTextDocument |
| QTextLine | Represents a line of text inside a QTextLayout |
| QTextList | Decorated list of items in a QTextDocument |
| QTextListFormat | Formatting information for lists in a QTextDocument |
| QTextOStream | Convenience class for output streams |
| QTextObject | Base class for different kinds of objects that can group parts of a QTextDocument together |
| QTextOption | Description of general rich text properties |
| QTextStream | Convenient interface for reading and writing text |
| QTextTable | Represents a table in a QTextDocument |
| QTextTableCell | Represents the properties of a cell in a QTextTable |
| QTextTableCellFormat | Formatting information for table cells in a QTextDocument |
| QTextTableFormat | Formatting information for tables in a QTextDocument |
| QThread | Platform-independent threads |
| QThreadPool | Manages a collection of QThreads |
| QThreadStorage | Per-thread data storage |
| QTime | Clock time functions |
| QTimeEdit | Widget for editing times based on the QDateTimeEdit widget |
| QTimeLine | Timeline for controlling animations |
| QTimer | Repetitive and single-shot timers |
| QTimerEvent | Contains parameters that describe a timer event |
| QToolBar | Movable panel that contains a set of controls |
| QToolBox | Column of tabbed widget items |
| QToolButton | Quick-access button to commands or options, usually used inside a QToolBar |
| QToolTip | Tool tips (balloon help) for any widget |
| QTransform | Specifies 2D transformations of a coordinate system |
| QTranslator | Internationalization support for text output |
| QTreeView | Default model/view implementation of a tree view |
| QTreeWidget | Tree view that uses a predefined tree model |
| QTreeWidgetItem | Item for use with the QTreeWidget convenience class |
| QTreeWidgetItemIterator | Way to iterate over the items in a QTreeWidget instance |
| QUndoCommand | The base class of all commands stored on a QUndoStack |
| QUndoGroup | Group of QUndoStack objects |
| QUndoStack | Stack of QUndoCommand objects |
| QUndoView | Displays the contents of a QUndoStack |
| QUrl | Convenient interface for working with URLs |
| QUuid | Stores a Universally Unique Identifier (UUID) |
| QVBoxLayout | Lines up widgets vertically |
| QValidator | Validation of input text |
| QVarLengthArray | Low-level variable-length array |
| QVariant | Acts like a union for the most common Qt data types |
| QVector | Template class that provides a dynamic array |
| QVectorIterator | Java-style const iterator for QVector and QStack |
| QWSCalibratedMouseHandler | Mouse calibration and noise reduction in Qt for Embedded Linux |
| QWSClient | Encapsulates a client process in Qt for Embedded Linux |
| QWSEmbedWidget | Enabels embedded top-level widgets in Qt for Embedded Linux |
| QWSEvent | Encapsulates an event in Qt for Embedded Linux |
| QWSInputMethod | International input methods in Qt for Embedded Linux |
| QWSKeyboardHandler | Base class for keyboard drivers in Qt for Embedded Linux |
| QWSMouseHandler | Base class for mouse drivers in Qt for Embedded Linux |
| QWSPointerCalibrationData | Container for mouse calibration data in Qt for Embedded Linux |
| QWSScreenSaver | Base class for screensavers in Qt for Embedded Linux |
| QWSServer | Encapsulates a server process in Qt for Embedded Linux |
| QWSWindow | Encapsulates a top-level window in Qt for Embedded Linux |
| QWaitCondition | Condition variable for synchronizing threads |
| QWhatsThis | Simple description of any widget, i.e. answering the question "What's This?" |
| QWhatsThisClickedEvent | Event that can be used to handle hyperlinks in a "What's This?" text |
| QWheelEvent | Contains parameters that describe a wheel event |
| QWidget | The base class of all user interface objects |
| QWidgetAction | Extends QAction by an interface for inserting custom widgets into action based containers, such as toolbars |
| QWidgetItem | Layout item that represents a widget |
| QWindowStateChangeEvent | The window state before a window state change |
| QWindowsMime | Maps open-standard MIME to Window Clipboard formats |
| QWindowsStyle | Microsoft Windows-like look and feel |
| QWindowsVistaStyle | Look and feel suitable for applications on Microsoft Windows Vista |
| QWindowsXPStyle | Microsoft Windows XP-like look and feel |
| QWizard | Framework for wizards |
| QWizardPage | The base class for wizard pages |
| QWorkspace | Workspace window that can be used in an MDI application |
| QWriteLocker | Convenience class that simplifies locking and unlocking read-write locks for write access |
| QX11EmbedContainer | XEmbed container widget |
| QX11EmbedWidget | XEmbed client widget |
| QX11Info | Information about the X display configuration |
| QXmlStreamAttribute | Represents a single XML attribute |
| QXmlStreamAttributes | Represents a vector of QXmlStreamAttribute |
| QXmlStreamEntityDeclaration | Represents a DTD entity declaration |
| QXmlStreamEntityResolver | Entity resolver for a QXmlStreamReader |
| QXmlStreamNamespaceDeclaration | Represents a namespace declaration |
| QXmlStreamNotationDeclaration | Represents a DTD notation declaration |
| QXmlStreamReader | Fast well-formed XML parser with a simple streaming API |
| QXmlStreamWriter | XML writer with a simple streaming API |
| QtConcurrent::UnhandledException | Represents an unhandled exception in a worker thread |
|
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