The QSurfaceFormat class represents the format of a QSurface.| doc.qt.io
The QSize class defines the size of a two-dimensional object using integer point precision.| doc.qt.io
The QSurface class is an abstraction of renderable surfaces in Qt.| doc.qt.io
The QOpenGLContext class represents a native OpenGL context, enabling OpenGL rendering on a QSurface.| doc.qt.io
The QWindow class represents a window in the underlying windowing system.| doc.qt.io