Detect if headphones are plugged in or not via C#

Question

There is no example how to detect if headphones are plugged in or not via C#.

I assume should be some event for that...

Does make sense to use WMI?

Answer 1

Detecting changes of this kind is possible by using the IMMDeviceEnumerator::RegisterEndpointNotificationCallback method.

As you want to handle this in C# you will need a managed wrapper which has already been implemented by Akos Mattiassich. You can find a thourough example here: Managed Wrapper around MMAudioDeviceApi

He states:

The program can play test sound on selected devices and it updates the list automatically on changes eg. through the control panel or in case of plugging new device physically.