public static float?GetApplicationPeak(int pid)
{
IAudioMeterInformation meter = VolumeMixer.GetCoreAudioObject <IAudioMeterInformation>(pid);
if (meter == null)
{
return(null);
}
float peak;
meter.GetPeakValue(out peak);
return(peak);
}
public static void SetApplicationMute(int pid, bool mute)
{
ISimpleAudioVolume volume = VolumeMixer.GetCoreAudioObject <ISimpleAudioVolume>(pid);
if (volume == null)
{
return;
}
Guid guid = Guid.Empty;
volume.SetMute(mute, ref guid);
Marshal.ReleaseComObject(volume);
}
public static void SetApplicationVolume(int pid, float level)
{
ISimpleAudioVolume volume = VolumeMixer.GetCoreAudioObject <ISimpleAudioVolume>(pid);
if (volume == null)
{
return;
}
Guid guid = Guid.Empty;
volume.SetMasterVolume(level / 100, ref guid);
Marshal.ReleaseComObject(volume);
}
public static bool?GetApplicationMute(int pid)
{
ISimpleAudioVolume volume = VolumeMixer.GetCoreAudioObject <ISimpleAudioVolume>(pid);
if (volume == null)
{
return(null);
}
bool mute;
volume.GetMute(out mute);
Marshal.ReleaseComObject(volume);
return(mute);
}
public static float?GetApplicationVolume(int pid)
{
ISimpleAudioVolume volume = VolumeMixer.GetCoreAudioObject <ISimpleAudioVolume>(pid);
if (volume == null)
{
return(null);
}
float level;
volume.GetMasterVolume(out level);
Marshal.ReleaseComObject(volume);
return(level * 100);
}