private void GetAudioLoudness()
{
_Part.Activate(CLSCTX.ALL, ref IIDs.IID_IAudioLoudness, out object result);
if (result != null)
{
_AudioLoudness = new AudioLoudness(result as IAudioLoudness);
_AudioLoudnessChangeNotification = new ControlChangeNotify(this);
Marshal.ThrowExceptionForHR(_Part.RegisterControlChangeCallback(ref IIDs.IID_IAudioLoudness, _AudioLoudnessChangeNotification));
}
}
private void GetAudioMute()
{
object result = null;
_Part.Activate(CLSCTX.ALL, ref IIDs.IID_IAudioMute, out result);
if (result != null)
{
_AudioMute = new AudioMute(result as IAudioMute);
_AudioMuteChangeNotification = new ControlChangeNotify(this);
Marshal.ThrowExceptionForHR(_Part.RegisterControlChangeCallback(ref IIDs.IID_IAudioMute, _AudioMuteChangeNotification));
}
}
private void GetAudioPeakMeter()
{
object result = null;
_Part.Activate(CLSCTX.ALL, ref IIDs.IID_IAudioPeakMeter, out result);
if (result != null)
{
_AudioPeakMeter = new AudioPeakMeter(result as IAudioPeakMeter);
_AudioPeakMeterChangeNotification = new ControlChangeNotify(this);
Marshal.ThrowExceptionForHR(_Part.RegisterControlChangeCallback(ref IIDs.IID_IAudioPeakMeter, _AudioPeakMeterChangeNotification));
}
}
private void DisposeCtrlChangeNotify(ref ControlChangeNotify obj)
{
if (obj != null)
{
try {
ControlChangeNotify cn = (ControlChangeNotify)obj;
if (cn.IsAllocated)
{
Marshal.ThrowExceptionForHR(_Part.UnregisterControlChangeCallback(cn));
cn.Dispose();
}
} catch { }
obj = null;
}
}
private void DisposeCtrlChangeNotify(ref ControlChangeNotify obj)
{
if(obj != null) {
try {
ControlChangeNotify cn = (ControlChangeNotify)obj;
if(cn.IsAllocated) {
Marshal.ThrowExceptionForHR(_Part.UnregisterControlChangeCallback(cn));
cn.Dispose();
}
} catch { }
obj = null;
}
}
