suse man page for dpmscapable

DPMSCapable(3)							    X FUNCTIONS 						    DPMSCapable(3)

NAME
       DPMSCapable - returns the DPMS capability of the X server

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

       Bool DPMSCapable ( Display *display );

ARGUMENTS
       display
	      Specifies the connection to the X server

DESCRIPTION
       The DPMSCapable function returns the Display Power Management Signaling (DPMS) capability of the X server, either TRUE (capable of DPMS) or
       FALSE (incapable of DPMS).

RETURN VALUES
       True	      The DPMSCapable function returns True if the X server is capable of DPMS.

       False	      The DPMSCapable function returns True if the X server is incapable of DPMS.

X Version 11							   libXext 1.1.1						    DPMSCapable(3)