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Application Interface (Windows CE 5.0)

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The Power Manager provides several functions to allow applications to affect system and device power management. Of the APIs in this list, only GetSystemPowerState, SetPowerRequirement and ReleasePowerRequirement are intended for use by generic applications. For example, applications may use SetSystemPowerState to suspend the system, but the Power Manager may restrict the system power states that can be entered as a result of application requests. The other APIs are intended for use by OEM applications, such as control panel utilities. The following table shows the device power management functions.

Function Description
GetSystemPowerState Returns the name of the current system power state.
SetSystemPowerState Requests that the Power Manager change the current system power state.
SetPowerRequirement Requests that the Power Manager maintain a given device's power state at a minimum level.
ReleasePowerRequirement Informs the Power Manager that it is no longer necessary to maintain a device's minimum power state as described in a previous call to SetPowerRequirement.
GetDevicePower Returns a given device's current power state.
SetDevicePower Request that the Power Manager change a given device's power state.

See Also

Power Manager Interfaces | System Power State Setting | Power Requirements on Devices

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