DPMSGetTimeouts(3) X FUNCTIONS DPMSGetTimeouts(3)NAME
DPMSGetTimeouts - retrieves the timeout values used by the X server for DPMS timings
SYNOPSIS
cc [ flag ... ] file ... -lXext [ library ... ]
#include <X11/extensions/dpms.h>
Bool DPMSGetTimeouts
(
Display *display,
CARD16 *standby,
CARD16 *suspend,
CARD16 *off
);
ARGUMENTS
display
Specifies the connection to the X server
standby
Specifies the current standby timeout in seconds
suspend
Specifies the current suspend timeout in seconds
off Specifies the current off timeout in seconds
DESCRIPTION
The DPMSGetTimeouts function retrieves the timeout values used by the X server for DPMS timings.
The value standby is the amount of time of inactivity in seconds before standby mode is invoked. A value of zero indicates that this mode
has been disabled.
The value suspend is the amount of time of inactivity in seconds before the second level of power savings is invoked. A value of zero
indicates that this mode has been disabled.
The value off is the amount of time of inactivity in seconds before the third and final level of power savings is invoked. A value of zero
indicates that this mode has been disabled.
RETURN VALUES
TRUE The DPMSGetTimeouts function returns TRUE when values are returned.
FALSE The DPMSGetTimeouts function returns FALSE when no values returned.
SEE ALSO DPMSCapable(3), DPMSInfo(3), DPMSSetTimeouts(3)X Version 11 libXext 1.3.2 DPMSGetTimeouts(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 depen-
dent on the characteristics of the monitor 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 implemented 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 hor-
izontal 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 suspend 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)