DragonFly On-Line Manual Pages

DPMSQueryExtension(3)             X FUNCTIONS            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 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, and event_base and error_base
                      are set to the base event number and base error number
                      for the extension, respectively.

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

SEE ALSO
       DPMSGetVersion(3)

X Version 11                     libXext 1.3.4           DPMSQueryExtension(3)