NAME
	  glXWaitGL - complete GL execution prior to subsequent	X
	  calls


     C SPECIFICATION
	  void glXWaitGL( void )


     DESCRIPTION
	  GL rendering calls made prior	to glXWaitGL are guaranteed to
	  be executed before X rendering calls made after glXWaitGL.
	  Although this	same result can	be achieved using glFinish,
	  glXWaitGL does not require a round trip to the server, and
	  it is	therefore more efficient in cases where	client and
	  server are on	separate machines.

	  glXWaitGL is ignored if there	is no current GLX context.

     NOTES
	  glXWaitGL may	or may not flush the X stream.

     ERRORS
	  GLXBadCurrentWindow is generated if the drawable associated
	  with the current context of the calling thread is a window,
	  and that window is no	longer valid.

     SEE ALSO
	  glFinish, glFlush, glXWaitX, XSync