QtGUI Module's Classes
Qt GUI C++ Classes
The Qt GUI module provides the basic enablers for graphical applications written with Qt. More...
Reference
Event Classes
These Qt Core classes are used to create and handle events.
For more information see the Event System page.
Interface to manage Qt's event queue |
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Event that is generated when a QAction is added, removed, or changed |
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Timer events for objects |
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Contains event parameters for child object events |
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Contains parameters that describe a close event |
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Contains parameters that describe a context menu event |
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Event which is sent to a widget when a drag and drop action enters it |
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Event that is sent to a widget when a drag and drop action leaves it |
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Event which is sent while a drag and drop action is in progress |
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Event which is sent when a drag and drop action is completed |
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Contains event parameters for dynamic property change events |
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Contains parameters that describe an enter event |
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The base class of all event classes. Event objects contain event parameters |
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Contains event parameters for expose events |
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Event that will be sent when there is a request to open a file or a URL |
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Contains event parameters for widget focus events |
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The description of triggered gestures |
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Event that is used to request helpful information about a particular point in a widget |
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Event which is sent after a widget is hidden |
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Contains parameters that describe a mouse event |
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Indicates that a main icon drag has begun |
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The base class for events that describe user input |
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Parameters for input method events |
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Describes a key event |
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Contains parameters that describe a mouse event |
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Contains event parameters for move events |
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Contains parameters that describe a gesture event |
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Contains event parameters for paint events |
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Contains event parameters for resize events |
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Sent when scrolling |
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Sent in preparation of scrolling |
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Used to create keyboard shortcuts |
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Event which is generated when the user presses a key combination |
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Event that is sent when a widget is shown |
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Event that is used to show messages in a status bar |
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Contains parameters that describe a Tablet event |
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Repetitive and single-shot timers |
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Contains parameters that describe a timer event |
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Contains parameters that describe a touch event |
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Event that can be used to handle hyperlinks in a "What's This?" text |
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Contains parameters that describe a wheel event |
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The window state before a window state change |
Painting Classes
See also this introduction to the Qt coordinate system.
Monochrome (1-bit depth) pixmaps |
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Defines the fill pattern of shapes drawn by QPainter |
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Colors based on RGB, HSV or CMYK values |
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Maps device independent QColors to device dependent pixel values |
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Used in combination with QBrush to specify a conical gradient brush |
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Specifies a font used for drawing text |
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Font metrics information |
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Font metrics information |
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Template class that represents a NxM transformation matrix with N columns and M rows |
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Used in combination with QBrush to specify gradient fills |
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Scalable icons in different modes and states |
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Abstract base class for QIcon renderers |
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Hardware-independent image representation that allows direct access to the pixel data, and can be used as a paint device |
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Format independent interface for reading images from files or other devices |
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Format independent interface for writing images to files or other devices |
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Two-dimensional vector using integer precision |
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Two-dimensional vector using floating point precision |
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Used in combination with QBrush to specify a linear gradient brush |
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Defines the four margins of a rectangle |
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Defines the four margins of a rectangle |
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Represents a paintdevice that supports multiple pages |
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The base class of objects that can be painted on with QPainter |
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Abstract definition of how QPainter draws to a given device on a given platform |
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Performs low-level painting on widgets and other paint devices |
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Container for painting operations, enabling graphical shapes to be constructed and reused |
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Used to generate fillable outlines for a given painter path |
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Class to generate PDFs that can be used as a paint device |
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Defines how a QPainter should draw lines and outlines of shapes |
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Off-screen image representation that can be used as a paint device |
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Defines a point in the plane using integer precision |
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Defines a point in the plane using floating point precision |
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Vector of points using integer precision |
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Vector of points using floating point precision |
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Used in combination with QBrush to specify a radial gradient brush |
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Defines a rectangle in the plane using integer precision |
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Defines a rectangle in the plane using floating point precision |
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Specifies a clip region for a painter |
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Defines the size of a two-dimensional object using integer point precision |
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Defines the size of a two-dimensional object using floating point precision |
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Convenience class for drawing QStyle elements inside a widget |
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Used when registering fonts with the internal Qt fontdatabase |
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Paint device that is used to create SVG drawings |
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Used to draw the contents of SVG files onto paint devices |
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Widget that is used to display the contents of Scalable Vector Graphics (SVG) files |
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Specifies 2D transformations of a coordinate system |
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Represents a vector or vertex in 2D space |
Rendering in 3D
Template class that represents a NxM transformation matrix with N columns and M rows |
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Represents a 4x4 transformation matrix in 3D space |
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Functions for creating and managing OpenGL buffer objects |
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Enables logging of OpenGL debugging messages |
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Wraps an OpenGL debug message |
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Encapsulates an OpenGL framebuffer object |
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Specifies the format of an OpenGL framebuffer object |
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Cross-platform access to the OpenGL ES 2.0 API |
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Enables painting to an OpenGL context using QPainter |
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Allows OpenGL shaders to be compiled |
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Allows OpenGL shader programs to be linked and used |
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Wraps a sequence of OpenGL timer query objects |
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Wraps an OpenGL timer query object |
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Wraps an OpenGL Vertex Array Object |
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QOpenGLVertexArrayObject::Binder class is a convenience class to help with the binding and releasing of OpenGL Vertex Array Objects |
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Represents a quaternion consisting of a vector and scalar |
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Represents a vector or vertex in 2D space |
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Represents a vector or vertex in 3D space |
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Represents a vector or vertex in 4D space |
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