The QTransform class specifies 2D transformations of a coordinate system.| doc.qt.io
The QBitmap class provides monochrome (1-bit depth) pixmaps.| doc.qt.io
The QBrush class defines the fill pattern of shapes drawn by QPainter.| doc.qt.io
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.| doc.qt.io
The QColor class provides colors based on RGB, HSV or CMYK values.| doc.qt.io
The Qt namespace contains miscellaneous identifiers used throughout the Qt library.| doc.qt.io
The QPixmap class is an off-screen image representation that can be used as a paint device.| doc.qt.io
The QPainter class performs low-level painting on widgets and other paint devices.| doc.qt.io
The QVariant class acts like a union for the most common Qt data types.| doc.qt.io