static extern bool DevicePowerEnumDevices(uint queryIndex, QueryInterpretationFlags queryInterpretationFlags, QueryFlags queryFlags, IntPtr pReturnBuffer, ref uint pBufferSize);

QueryInterpretationFlags, QueryFlags

            (result = DevicePowerEnumDevices(index, QueryInterpretationFlags.DEVICEPOWER_FILTER_DEVICES_PRESENT, QueryFlags.PDCAP_D2_SUPPORTED, ptrBuffer, ref size)) != false)

    private enum QueryFlags : uint

Declare Function QueryFlags Lib "powrprof.dll" (TODO) As TODO

        /// Perform an AND operation on QueryFlags.

        /// Find a device whose name matches the string passed in pReturnBuffer and check its capabilities against QueryFlags.