[RequestWakeupLatency is available for use in the operating systems specified in the Requirements section. It may be altered or unavailable in subsequent versions.]
Has no effect and returns STATUS_NOT_SUPPORTED. This function is provided only for compatibility with earlier versions of Windows.
Windows Server 2008 and Windows Vista: Has no effect and always returns success.
BOOL RequestWakeupLatency( LATENCY_TIME latency );
The latency requirement for the time is takes to wake the computer. This parameter can be one of the following values.
||PowerSystemSleeping1 state (equivalent to ACPI state S0 and APM state Working).|
||Any latency (default).|
The return value is nonzero.
The system uses the wake-up latency requirement when choosing a sleeping state. The latency is not guaranteed because wake-up time is determined by the hardware design of the particular computer.
To cancel a latency request, call RequestWakeupLatency with LT_DONT_CARE.
|Minimum supported client||Windows XP [desktop apps only]|
|Minimum supported server||Windows Server 2003 [desktop apps only]|
|Header||winbase.h (include Windows.h)|