/// <summary>
/// Registers the event client for callbacks
/// </summary>
private void RegisterEventClient()
{
UnregisterEventClient();
_sessionEvents = new AudioSessionEvents();
Marshal.ThrowExceptionForHR(_audioSessionControl.RegisterAudioSessionNotification(_sessionEvents));
}
public void Dispose()
{
if (_AudioSessionEvents != null)
{
try {
Marshal.ThrowExceptionForHR(_AudioSessionControl2.UnregisterAudioSessionNotification(_AudioSessionEvents));
_AudioSessionEvents = null;
} catch { }
}
}
/// <summary>
/// Unregisters the event client from receiving callbacks
/// </summary>
private void UnregisterEventClient()
{
if (_sessionEvents == null)
{
return;
}
Marshal.ThrowExceptionForHR(_audioSessionControl.UnregisterAudioSessionNotification(_sessionEvents));
_sessionEvents = null;
}
internal AudioSessionControl2(IAudioSessionControl2 realAudioSessionControl2)
{
_AudioSessionControl2 = realAudioSessionControl2;
IAudioMeterInformation _meters = _AudioSessionControl2 as IAudioMeterInformation;
ISimpleAudioVolume _volume = _AudioSessionControl2 as ISimpleAudioVolume;
if (_meters != null) _AudioMeterInformation = new CoreAudio.AudioMeterInformation(_meters);
if (_volume != null) _SimpleAudioVolume = new SimpleAudioVolume(_volume);
_AudioSessionEvents = new AudioSessionEvents(this);
Marshal.ThrowExceptionForHR(_AudioSessionControl2.RegisterAudioSessionNotification(_AudioSessionEvents));
}
internal AudioSessionControl(IAudioSessionControl realAudioSessionControl)
{
IAudioMeterInformation _meters = realAudioSessionControl as IAudioMeterInformation;
ISimpleAudioVolume _volume = realAudioSessionControl as ISimpleAudioVolume;
if (_meters != null)
{
_AudioMeterInformation = new CoreAudio.AudioMeterInformation(_meters);
}
if (_volume != null)
{
_SimpleAudioVolume = new SimpleAudioVolume(_volume);
}
_AudioSessionControl = realAudioSessionControl;
_AudioSessionEvents = new AudioSessionEvents(this);
Marshal.ThrowExceptionForHR(_AudioSessionControl.RegisterAudioSessionNotification(_AudioSessionEvents));
}
public AudioSessionControl2(IAudioSessionControl2 realAudioSessionControl2)
{
_AudioSessionControl2 = realAudioSessionControl2;
if (_AudioSessionControl2 is IAudioMeterInformation _meters)
{
_AudioMeterInformation = new AudioMeterInformation(_meters);
}
if (_AudioSessionControl2 is ISimpleAudioVolume _volume1)
{
_SimpleAudioVolume = new SimpleAudioVolume(_volume1);
}
//IAudioVolumeLevel _volume2 = _AudioSessionControl2 as IAudioVolumeLevel;
//if (_volume2 != null) _AudioVolumeLevel = new AudioVolumeLevel(_volume2);
_AudioSessionEvents = new AudioSessionEvents(this);
Marshal.ThrowExceptionForHR(_AudioSessionControl2.RegisterAudioSessionNotification(_AudioSessionEvents));
}