The QScreen class is used to query screen properties.| doc.qt.io
The QOpenGLFunctions class provides cross-platform access to the OpenGL ES 2.0 API.| 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