[DllImport("PowrProf.dll", SetLastError=true)]
public static extern uint PowerReadDCDefaultIndex(IntPtr RootPowerKey, IntPtr SchemeGuid, IntPtr SubGroupOfPowerSettingGuid, IntPtr PowerSettingGuid, ref UInt32 DcDefaultIndex);
Declare Function PowerReadDCDefaultIndex Lib "powrprof.dll" (TODO) As TODO