private static void WriteCurrentAudioProcessesToFile()
{
// Get all the process Ids
Process[] appProcessCollection = Process.GetProcesses();
var appProcessIdCollection = getProcessIds(appProcessCollection).ToHashSet();
// Get all the processes that are an audio session
var defaultAudioDevice = VolumeMixer.GetOutputDevice();
var sessionManager = VolumeMixer.GetAudioSessionManager2(defaultAudioDevice);
var sessions = VolumeMixer.GetAudioSessionEnumerator(sessionManager);
var audioControls = VolumeMixer.GetAudioContols(sessions);
var audioProcessIdCollection = audioControls.Keys.ToHashSet();
// Get all the processes that are audio sessions of the focused application
var commonProcessIdCollection = appProcessIdCollection.Intersect(audioProcessIdCollection);
using (System.IO.StreamWriter file =
new System.IO.StreamWriter(@".\AudioProcessNames.txt"))
{
foreach (int pid in commonProcessIdCollection)
{
Process p = Process.GetProcessById(pid);
file.WriteLine(p.ProcessName);
}
}
}
// Change the focused apps volume by the amount specified
private static void ChangeAppVolume(HashSet <int> appProcessIdCollection, float volumeAmount)
{
// Get all the processes that are an audio session
var defaultAudioDevice = VolumeMixer.GetOutputDevice();
var sessionManager = VolumeMixer.GetAudioSessionManager2(defaultAudioDevice);
var sessions = VolumeMixer.GetAudioSessionEnumerator(sessionManager);
var audioControls = VolumeMixer.GetAudioContols(sessions);
var audioProcessIdCollection = audioControls.Keys.ToHashSet();
// Get all the processes that are audio sessions of the focused application
var commonProcessIdCollection = appProcessIdCollection.Intersect(audioProcessIdCollection);
// Change the volume of all the audio processes of the focused application
foreach (int processId in commonProcessIdCollection)
{
var volumeControl = audioControls[processId] as ISimpleAudioVolume;
var newVolumeLevel = VolumeMixer.GetApplicationVolume(volumeControl) + volumeAmount;
VolumeMixer.SetApplicationVolume(volumeControl, Math.Min(100, Math.Max(0, newVolumeLevel ?? 30f)));
Marshal.ReleaseComObject(volumeControl);
}
Marshal.ReleaseComObject(defaultAudioDevice);
Marshal.ReleaseComObject(sessionManager);
Marshal.ReleaseComObject(sessions);
}
private static void ToggleMute(HashSet <int> appProcessIdCollection)
{
// Get all the processes that are an audio session
var defaultAudioDevice = VolumeMixer.GetOutputDevice();
var sessionManager = VolumeMixer.GetAudioSessionManager2(defaultAudioDevice);
var sessions = VolumeMixer.GetAudioSessionEnumerator(sessionManager);
var audioControls = VolumeMixer.GetAudioContols(sessions);
var audioProcessIdCollection = audioControls.Keys.ToHashSet();
// Get all the processes that are audio sessions of the focused application
var commonProcessIdCollection = appProcessIdCollection.Intersect(audioProcessIdCollection);
// Change the volume of all the audio processes of the focused application
foreach (int processId in commonProcessIdCollection)
{
var volumeControl = audioControls[processId] as ISimpleAudioVolume;
var currentMute = VolumeMixer.GetApplicationMute(volumeControl);
VolumeMixer.SetApplicationMute(volumeControl, !currentMute ?? false);
Marshal.ReleaseComObject(volumeControl);
}
Marshal.ReleaseComObject(defaultAudioDevice);
Marshal.ReleaseComObject(sessionManager);
Marshal.ReleaseComObject(sessions);
}