The context is disconnected from any particular surface or surface.
If the creation of the GdkGLContext failed, @error will be set.
Before using the returned GdkGLContext, you will need to
call [method@Gdk.GLContext.make_current] or [method@Gdk.GLContext.realize].
Creates a new GdkGLContext for the GdkSurface.
The context is disconnected from any particular surface or surface. If the creation of the GdkGLContext failed, @error will be set. Before using the returned GdkGLContext, you will need to call [method@Gdk.GLContext.make_current] or [method@Gdk.GLContext.realize].