POWERRET _VPOWERD_Deregister_Power_Handler(POWER_HANDLER power_handler);
Deregisters a power handler from the event notification queue.
This is intended for use by Configuration Manager only. Virtual devices that require notification of power changes should install a message hook procedure using the _SHELL_HookSystemBroadcast service.
power_handler
Address of the callback function to remove from the notification queue.
This service may only be called synchronously, that is, not at interrupt time.