Changing master volume level

Question

How can I change the master volume level? Using this code

[DllImport (\"winmm.dll\")]
public static extern int waveOutSetVolume (IntPtr hwo, uint dwVolume);
         


        

Answer 1

Use this free library, it's simple and does the job. InputSimulator

It simulates a key press. You only have to add this reference and call wherever you want static methods like these:

  InputSimulator.SimulateKeyPress(VirtualKeyCode.VOLUME_UP);

  InputSimulator.SimulateKeyPress(VirtualKeyCode.VOLUME_DOWN);

  InputSimulator.SimulateKeyPress(VirtualKeyCode.VOLUME_MUTE);

Then, if you want to get the master vokume level do:

  // volume update
  MMDevice defaultDevice = new MMDeviceEnumerator()
        .GetDefaultAudioEndpoint(DataFlow.Render‌​, Role.Multimedia);
  // veloce attesa per l'aggiornamento del volume
  Thread.Sleep(100);
  float level = defaultDevice.AudioEndpointVolume.MasterVolumeLevelScalar; 

Doing this you'll have in level the current volume in 0-1 format (eg. 52% is 0.52) If you want to have it in 0-100 format simply do level*100