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X11R7.4 - man page for dpmssettimeouts (x11r4 section 3)

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DPMSSetTimeouts(3)			   X FUNCTIONS			       DPMSSetTimeouts(3)

NAME
       DPMSSetTimeouts	- permits applications to set the timeout values used by the X server for
       DPMS timings

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

       Status DPMSSetTimeouts
	      (
		    Display *display,
		    CARD16 standby,
		    CARD16 suspend,
		    CARD16 off
	      );

ARGUMENTS
       display
	      Specifies the connection to the X server

       standby
	      Specifies the new standby timeout in seconds

       suspend
	      Specifies the new suspend timeout in seconds

       off    Specifies the new off timeout in seconds

DESCRIPTION
       The DPMSSetTimeouts function permits applications to set the timeout values used by the	X
       server for Display Power Management Signaling (DPMS) timings.

       The  value  standby  is	the amount of inactivity time, in seconds, before standby mode is
       invoked. The actual effects of this mode are dependent on the characteristics of the moni-
       tor and frame buffer card. Standby mode is implemented by shutting off the horizontal sync
       signal, and pulsing the vertical sync signal. Standby mode provides the	quickest  monitor
       recovery  time.	 Note  also  that  many monitors implement this mode identical to suspend
       mode.  A value of zero disables the standby mode.

       The value suspend is the amount of time of inactivity, in seconds, before the second level
       of  power  savings  is invoked. Suspend mode's physical and electrical characteristics are
       implementation defined. For DPMS compliant hardware, setting the suspend  mode  is  imple-
       mented  by  pulsing  the horizontal sync signal and shutting off the vertical sync signal.
       In general, suspend mode recovery is considered to be slower than standby mode, but faster
       than off mode. However it may vary from monitor to monitor.  As noted above, many monitors
       implement this mode identical to the standby mode.  A value of zero disables this mode.

       The value off is the amount of time of inactivity,in seconds, before the third  and  final
       level  of power savings is invoked. Off mode's physical and electrical characteristics are
       implementation defined. In DPMS compliant hardware, it is implemented by shutting off both
       horizontal and vertical sync signals, resulting in powering down of the monitor.  Recovery
       time is implementation dependent.  Usually the recovery time is very close to the power-up
       time of the monitor. A value of zero disables this mode.

       Chronologically,  standby mode occurs before or simultaneously with suspend mode, and sus-
       pend mode must occur before or simultaneously with off  mode.   Therefore,  non-zero  mode
       timeout	values	must be greater than or equal to the timeout values of earlier modes.  If
       inconsistent values are supplied, a BadValue error will result.

RETURN VALUES
       TRUE	      The DPMSSetTimeouts function returns TRUE when the function has succeeded.

ERRORS
       BadValue       An argument is out of range.

SEE ALSO
       DPMSCapable(3), DPMSInfo(3), DPMSGetTimeouts(3)

X Version 11				  libXext 1.0.5 		       DPMSSetTimeouts(3)
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