private static ISimpleAudioVolume GetVolumeObject(string name)
{
IMMDeviceEnumerator devices = (IMMDeviceEnumerator) new MMDeviceEnumerator();
IMMDevice device = devices.GetDefaultAudioEndpoint(EDATAFLOW_RENDER, EROLE_MULTIMEDIA);
Guid sessionManagerGUID = typeof(IAudioSessionManager2).GUID;
IAudioSessionManager2 manager = (IAudioSessionManager2)device.Activate(ref sessionManagerGUID, 0, IntPtr.Zero);
IAudioSessionEnumerator sessions = manager.GetSessionEnumerator();
ISimpleAudioVolume volumeObj = null;
for (int index = sessions.GetCount() - 1; index >= 0; index--)
{
IAudioSessionControl2 ctl = sessions.GetSession(index) as IAudioSessionControl2;
if (ctl != null)
{
string identifier = ctl.GetSessionIdentifier();
if (identifier != null && identifier.Contains(name))
{
volumeObj = ctl as ISimpleAudioVolume;
break;
}
Marshal.ReleaseComObject(ctl);
}
}
Marshal.ReleaseComObject(devices);
Marshal.ReleaseComObject(device);
Marshal.ReleaseComObject(manager);
Marshal.ReleaseComObject(sessions);
return(volumeObj);
}