Question

These classes are used for manipulating images.

QBitmap	Monochrome (1-bit depth) pixmaps
QBrush	Defines the fill pattern of shapes drawn by a QPainter
QCanvas	2D area that can contain QCanvasItem objects
QCanvasEllipse	Ellipse or ellipse segment on a QCanvas
QCanvasItem	Abstract graphic object on a QCanvas
QCanvasItemList	List of QCanvasItems
QCanvasLine	Line on a QCanvas
QCanvasPixmap	Pixmaps for QCanvasSprites
QCanvasPixmapArray	Array of QCanvasPixmaps
QCanvasPolygon	Polygon on a QCanvas
QCanvasPolygonalItem	Polygonal canvas item on a QCanvas
QCanvasRectangle	Rectangle on a QCanvas
QCanvasSpline	Multi-bezier splines on a QCanvas
QCanvasSprite	Animated canvas item on a QCanvas
QCanvasText	Text object on a QCanvas
QCanvasView	On-screen view of a QCanvas
QColor	Colors based on RGB or HSV values
QColorGroup	Group of widget colors
QGL	Namespace for miscellaneous identifiers in the Qt OpenGL module
QGLColormap	Used for installing custom colormaps into QGLWidgets
QGLContext	Encapsulates an OpenGL rendering context
QGLFormat	The display format of an OpenGL rendering context
QGLWidget	Widget for rendering OpenGL graphics
QIconSet	Set of icons with different styles and sizes
QImage	Hardware-independent pixmap representation with direct access to the pixel data
QImageConsumer	Abstraction used by QImageDecoder
QImageDecoder	Incremental image decoder for all supported image formats
QImageFormat	Incremental image decoder for a specific image format
QImageFormatType	Factory that makes QImageFormat objects
QImageIO	Parameters for loading and saving images
QMovie	Incremental loading of animations or images, signalling as it progresses
QPaintDevice	The base class of objects that can be painted
QPaintDeviceMetrics	Information about a paint device
QPainter	Does low-level painting e.g. on widgets
QPalette	Color groups for each widget state
QPen	Defines how a QPainter should draw lines and outlines of shapes
QPicture	Paint device that records and replays QPainter commands
QPixmap	Off-screen, pixel-based paint device
QPixmapCache	Application-global cache for pixmaps
QPNGImagePacker	Creates well-compressed PNG animations
QPoint	Defines a point in the plane
QPointArray	Array of points
QPrinter	Paint device that paints on a printer
QRect	Defines a rectangle in the plane
QRegion	Clip region for a painter
QSize	Defines the size of a two-dimensional object
QWMatrix	2D transformations of a coordinate system