RequestWakeupLatency The RequestWakeupLatency function specifies roughly how quickly the computer should enter the working state. BOOL RequestWakeupLatency( LATENCY_TIME latency // latency requirement ); Parameters latency [in] Specifies the latency requirement on the time is takes to wake the computer. This parameter can be one of the following values. Value Description LT_LOWEST_LATENCY PowerSystemSleeping1 state (equivalent to ACPI state S0 and APM state Working). LT_DONT_CARE Any latency (default). Return Values If the function succeeds, the return value is nonzero.If the function fails, the return value is zero. The function will fail if the device does not support wake-up operations or if the system is entering the sleeping state. Res 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.
The RequestWakeupLatency function specifies roughly how quickly the computer should enter the working state. BOOL RequestWakeupLatency(
LATENCY_TIME latency // latency requirement
);
Parameters
latency
[in] Specifies the latency requirement on the time is takes to wake the computer. This parameter can be one of the following values. Value Description
LT_LOWEST_LATENCY PowerSystemSleeping1 state (equivalent to ACPI state S0 and APM state Working).
LT_DONT_CARE Any latency (default).
Return Values
If the function succeeds, the return value is nonzero.If the function fails, the return value is zero. The function will fail if the device does not support wake-up operations or if the system is entering the sleeping state. Res
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.