Returns the version numbers of the OpenGL extension to the window system.
In the X Window System, it returns the GLX version.
In the Microsoft Windows, it returns the Windows version.
the #GdkDisplay where the query is sent to.
returns the major version number of the OpenGL extension.
returns the minor version number of the OpenGL extension.
Return: FALSE if it fails, TRUE otherwise.
See Implementation
Returns the version numbers of the OpenGL extension to the window system.
In the X Window System, it returns the GLX version.
In the Microsoft Windows, it returns the Windows version.