QAbstractTextDocumentLayout | Abstract base class used to implement custom layouts for QTextDocuments |
QActionEvent | Event that is generated when a QAction is added, removed, or changed |
QBackingStore | The drawing area for top-level windows |
QBitmap | Monochrome (1-bit depth) pixmaps |
QBrush | Defines the fill pattern of shapes drawn by QPainter |
QClipboard | Access to the window system clipboard |
QCloseEvent | Contains parameters that describe a close event |
QColor | Colors based on RGB, HSV or CMYK values |
QConicalGradient | Used in combination with QBrush to specify a conical gradient brush |
QContextMenuEvent | Contains parameters that describe a context menu event |
QCursor | Mouse cursor with an arbitrary shape |
QDesktopServices | Methods for accessing common desktop services |
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 |
QExposeEvent | Contains event parameters for expose events |
QFileOpenEvent | Event that will be sent when there is a request to open a file or a URL |
QFocusEvent | Contains event parameters for widget focus events |
QFont | Specifies a font used for drawing text |
QFontDatabase | Information about the fonts available in the underlying window system |
QFontInfo | General information about fonts |
QFontMetrics | Font metrics information |
QFontMetricsF | Font metrics information |
QGenericMatrix | Template class that represents a NxM transformation matrix with N columns and M rows |
QGenericPlugin | Abstract base class for window-system related plugins in Qt QPA |
QGenericPluginFactory | Creates window-system related plugin drivers in Qt QPA |
QGlyphRun | Direct access to the internal glyphs in a font |
QGradient | Used in combination with QBrush to specify gradient fills |
QGuiApplication | Manages the GUI application's control flow and main settings |
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 |
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 |
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 |
QInputEvent | The base class for events that describe user input |
QInputMethod | Access to the active text input method |
QInputMethodEvent | Parameters for input method events |
QInputMethodQueryEvent |
QIntValidator | Validator that ensures a string contains a valid integer within a specified range |
QKeyEvent | Describes a key event |
QKeySequence | Encapsulates a key sequence as used by shortcuts |
QLinearGradient | Used in combination with QBrush to specify a linear gradient brush |
QMatrix4x4 | Represents a 4x4 transformation matrix in 3D space |
QMouseEvent | Contains parameters that describe a mouse event |
QMoveEvent | Contains event parameters for move events |
QMovie | Convenience class for playing movies with QImageReader |
QOpenGLBuffer | Functions for creating and managing OpenGL buffer objects |
QOpenGLContext |
QOpenGLContextGroup |
QOpenGLFramebufferObject | Encapsulates an OpenGL framebuffer object |
QOpenGLFramebufferObjectFormat | Specifies the format of an OpenGL framebuffer object |
QOpenGLFunctions | Cross-platform access to the OpenGL/ES 2.0 API |
QOpenGLPaintDevice | Enables painting to an OpenGL context using QPainter |
QOpenGLShader | Allows OpenGL shaders to be compiled |
QOpenGLShaderProgram | Allows OpenGL shader programs to be linked and used |
QPagedPaintDevice | Represents a paintdevice that supports multiple pages |
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 |
QPalette | Contains color groups for each widget state |
QPdfWriter | Class to generate PDFs that can be used as a paint device |
QPen | Defines how a QPainter should draw lines and outlines of shapes |
QPicture | Paint device that records and replays QPainter commands |
QPixmap | Off-screen image representation that can be used as a paint device |
QPixmapCache | Application-wide cache for pixmaps |
QPolygon | Vector of points using integer precision |
QPolygonF | Vector of points using floating point precision |
QQuaternion | Represents a quaternion consisting of a vector and scalar |
QRadialGradient | Used in combination with QBrush to specify a radial gradient brush |
QRasterPaintEngine | Enables hardware acceleration of painting operations in Qt for Embedded Linux |
QRawFont | Access to a single physical instance of a font |
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 |
QScreen | Used to query screen properties |
QScrollEvent | Send when scrolling |
QScrollPrepareEvent | Send in preparation of a scrolling |
QShortcutEvent | Event which is generated when the user presses a key combination |
QShowEvent | Event that is sent when a widget is shown |
QStaticText | Enables optimized drawing of text when the text and its layout is updated rarely |
QStatusTipEvent | Event that is used to show messages in a status bar |
QStyleHints |
QSupportedWritingSystems | Used when registering fonts with the internal Qt fontdatabase |
QSurface | Abstraction of renderable surfaces in Qt |
QSurfaceFormat | Represents the format of a QSurface |
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 |
QTabletEvent | Contains parameters that describe a Tablet event |
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 |
QTextCharFormat | Formatting information for characters in a QTextDocument |
QTextCursor | Offers an API to access and modify QTextDocuments |
QTextDocument | Holds formatted text that can be viewed and edited using a QTextEdit |
QTextDocumentFragment | Represents a piece of formatted text from a QTextDocument |
QTextDocumentWriter | Format-independent interface for writing a QTextDocument to files or other devices |
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 |
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 render 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 |
QTextObject | Base class for different kinds of objects that can group parts of a QTextDocument together |
QTextObjectInterface | Allows drawing of custom text objects in QTextDocuments |
QTextOption | Description of general rich text properties |
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 |
QTouchDevice | Describes the device from with touch events originate |
QTouchEvent | Contains parameters that describe a touch event |
QTransform | Specifies 2D transformations of a coordinate system |
QValidator | Validation of input text |
QVector2D | Represents a vector or vertex in 2D space |
QVector3D | Represents a vector or vertex in 3D space |
QVector4D | Represents a vector or vertex in 4D space |
QWhatsThisClickedEvent | Event that can be used to handle hyperlinks in a "What's This?" text |
QWheelEvent | Contains parameters that describe a wheel event |
QWindow | Represents a window in the underlying windowing system |
QWindowStateChangeEvent | The window state before a window state change |
