DPMSForceLevel3x
Forces a dpms capable display into the specified power level
Usage
cc [ flag ... ] file ... -lXext [ library ... ] #include <X11/extensions/dpms.h> Status DPMSForceLevel ( Display *display, CARD16 level );
Arguments
display
|
Specifies the connection to the X server |
|---|---|
level
|
Specifies the level to force power to |
Overview
The DPMSForceLevel function forces a DPMS capable display into the specified power level. The level must be one of following four states: DPMSModeOn, DPMSModeStandby, DPMSModeSuspend, or DPMSModeOff. Values other than these will result in a BadValue error. If DPMS is disabled on the display, trying to set the power level on the display will result in a BadMatch protocol error.
Return values
- TRUE
-
The DPMSForceLevel function always returns TRUE.
Errors
- BadValue
-
A level other than DPMSModeOn, DPMSModeStandby, DPMSModeSuspend, or DPMSModeOff was specified.
- BadMatch
-
DPMS is disabled on the specified display.