Cool! I'm happy that this works not only for me

If you can create an icon for this hack, it would be just great. By the way, we need two icons: for headphones and speaker states, because I want to improve it to show current state of the sound output.

Don't forget to switch it back to Speaker when you remove headphones. Because if somebody will call you, you won't be able to answer without headphones — it will try to take voice from headset microphone.

And there is no Qt at all in this application Just several hours of investigation and a bit of luck