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DPMSQueryExtension(3dpms)	 DPMS FUNCTION	     DPMSQueryExtension(3dpms)

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

SYNOPSIS
       Bool DPMSQueryExtension ( display, event_base, error_base )
	     Display *display;
	     CARD32 *event_base;
	     CARD32 *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 DPMS Extension.  If the extension is available, it
       returns TRUE, and the event_base and error_base are  set	 to  the  base
       event  and error numbers, respectively.	Otherwise, the return value is
       FALSE, and the values of event_base and error_base are undefined.

RETURN VALUES
       TRUE	      The DPMSQueryExtension  function	returns	 TRUE  if  the
		      extension	 is  available,	 the return value is TRUE, and
		      event_base and error_base are set to the base event num‐
		      ber  and	base  error  number for the extension, respec‐
		      tively.

       FALSE	      The DPMSQueryExtension function  returns	FALSE  if  the
		      values of event_base and error_base are undefined.

 X v11 Rel. 6.4			  20 Sep 1999	     DPMSQueryExtension(3dpms)

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