GLXDrawable glXGetCurrentDrawable( void )
glXGetCurrentDrawable returns the current drawable, as specified by
glXMakeCurrent. If there is no current drawable, None is returned.
glXGetCurrentDrawable returns client-side information. It does not
make a round trip to the server.
glXCreateGLXPixmap, glXGetCurrentContext, glXGetCurrentDisplay,
glXGetCurrentReadDrawable, glXMakeCurrent
GLXGETCURRENTDRAWABLE(3G)