DPMSQueryExtension(3)		  X Version 11		   DPMSQueryExtension(3)

NAME
     DPMSQueryExtension	 - queries the X server to determine the availability of
     the DPMS Extension

SYNOPSIS
     cc [ flag ... ] file ... -lXext [ library ... ]
     #include <X11/extensions/dpms.h>

     Bool DPMSQueryExtension (
	   Display *display,
	   int *event_base,
	   int *error_base
     );

ARGUMENTS
     display	    Specifies the connection to the X server

     event_base	    Specifies the return location for the assigned base event

     error_base	    Specifies the return location for the assigned base error

DESCRIPTION
     The DPMSQueryExtension function queries  the  X  server  to  determine  the
     availability  of  the  Display Power Management Signaling (DPMS) Extension.
     If the extension is available, it returns TRUE, and the event_base and  er-
     ror_base are set to the base event and error numbers, respectively.  Other-
     wise,  the	 return	 value	is  FALSE,  and the values of event_base and er-
     ror_base are undefined.

RETURN VALUES
     TRUE	    The DPMSQueryExtension function returns TRUE if  the  exten-
		    sion  is available, and event_base and error_base are set to
		    the base event number and base error number for  the  exten-
		    sion, respectively.

     FALSE	    The	 DPMSQueryExtension  function returns FALSE if extension
		    is not available, and  the	values	of  event_base	and  er-
		    ror_base are undefined.

SEE ALSO
     DPMSGetVersion(3)

libXext 1.3.7			   2005-09-24		   DPMSQueryExtension(3)