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Windows CE 5.0
Power Management

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Platform Builder for Microsoft Windows CE 5.0
Power Management Functions
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The following table shows the Power Management functions with a description of the purpose of each.

Programming element Description
DevicePowerNotify This function requests that the Power Manager change the power state of a device.
GetDevicePower This function returns the current power state for a device.
GetSystemPowerState This function returns the current system power state currently in effect.
PlatformDeviceListInit This function performs platform-specific initialization on a class of devices.
PlatformManageSystemPower This function implements the main event loop for the Power Manager.
PlatformMapPowerStateHint This function maps the system power state hint values to known system power states maintained in the system registry.
PlatformResumeSystem This function determines the cause for the wakeup of the system and initiates the appropriate system power state transition.
PlatformSendInitialNotifications This function is invoked when an application requests a power notification.
PlatformSetSystemPowerState This function reads and verifies the system power state information from the registry and updates all devices appropriately.
PlatformValidatePMRegistry This function verifies the consistency of the power management registry settings for a system.
PowerPolicyNotify This function notifies the power manager of the events that are necessary in order to implement a power policy created by an OEM.
RegisterPowerRelationship This function establishes dynamic parent and child or bus and client driver relationship.
ReleasePowerRelationship This functions releases the HANDLE returned from RegisterPowerRelationship.
ReleasePowerRequirement This function requests that the Power Manager release a power requirement previously set with SetPowerRequirement.
RequestPowerNotifications This function allows applications and drivers to register for power notification events.
SetDevicePower This function sets the device power state for a device.
SetPowerRequirement This function notifies the power manager that an application has a specific device power requirement.
SetSystemPowerState This function sets the system power state to the requested value.
StopPowerNotifications This function allows applications and drivers to stop receiving power notification events.

See Also

Power Management Reference


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