Sets the major and minor version of OpenGL to request.
Setting major and minor to zero will use the default values.
The gdk.GLContext must not be realized or made current prior to calling this function.
the major version to request
the minor version to request
3.16
Sets the major and minor version of OpenGL to request.
Setting major and minor to zero will use the default values.
The gdk.GLContext must not be realized or made current prior to calling this function.