internal AudioMeterInformation(IAudioMeterInformation realInterface)
        {
            int HardwareSupp;

            _AudioMeterInformation = realInterface;
            Marshal.ThrowExceptionForHR(_AudioMeterInformation.QueryHardwareSupport(out HardwareSupp));
            _HardwareSupport = (EndpointHardwareSupport) HardwareSupp;
            _Channels = new AudioMeterInformationChannels(_AudioMeterInformation);
        }
        internal AudioMeterInformation(IAudioMeterInformation realInterface)
        {
            int HardwareSupp;

            _AudioMeterInformation = realInterface;
            Marshal.ThrowExceptionForHR(_AudioMeterInformation.QueryHardwareSupport(out HardwareSupp));
            _HardwareSupport = (EndpointHardwareSupport)HardwareSupp;
            _Channels        = new AudioMeterInformationChannels(_AudioMeterInformation);
        }