glxgetcurrentreaddrawable man page on SunOS

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GLXGETCURRENTREADDRAWABLE(3gl)			GLXGETCURRENTREADDRAWABLE(3gl)

NAME
       glXGetCurrentReadDrawable - return the current drawable being used as a
       pixel query source

C SPECIFICATION
       GLXDrawable glXGetCurrentReadDrawable( void )

DESCRIPTION
       glXGetCurrentReadDrawable returns the name of the GLXDrawable currently
       being  used  as	a pixel query source.  If glXMakeCurrent specified the
       current rendering context, then glXGetCurrentReadDrawable  returns  the
       drawable specified as drawable by that glXMakeCurrent call. If glXMake‐
       ContextCurrent specified the current rendering context, then glXGetCur‐
       rentReadDrawable	 returns  the  drawable	 specified as readable by that
       glXMakeContextCurrent call.  If there is no current read drawable, None
       is returned.

       glXGetCurrentReadDrawable  returns  client-side	information.   It does
       not make a round trip to the server.

NOTES
       glXGetCurrentReadDrawable is part of the GLX Version 1.3	 command  set.
       The  function  is only valid if the connection supports GLX Version 1.3
       or later.

SEE ALSO
       glXCreatePixmap, glXMakeCurrent, glXMakeContextCurrent

				   12 Dec 97	GLXGETCURRENTREADDRAWABLE(3gl)
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