Get/Set Master Volume Lautstärke?

[Kas Ob.]

Zitat:

Isn't the logic inverted here? (if not Succeeded -> SetMute OK)

Yes you are right there.

I messed that up, but in all cases the master is switching between muted and unmuted with that function, try to capture the R value.

Also it seems the behavior is different on my Windows
AudioEndpoint.jpg

As you see in the Log Event first click is OK showing changing state followed by False because the state is not changed.