Control the computer's volume in C#

Question

Is there a way to control the computer's actual volume in C# and display that in a vertical track bar??

I have tried practically everything, but there must be something I am missing.

Thanks.

_"Practically everything"_ is not very helpful for ruling out answers we *don't* have to suggest anymore because you've already tried them. — stakx - no longer contributing, Nov 19 '11 at 09:07
@stakx practically everything means that I went through the .Net framework, but nothing did the trick — H Bellamy, Nov 19 '11 at 09:08
Related question: [C# get master volume level/percent](http://stackoverflow.com/questions/4235246/c-sharp-get-master-volume-level-precent). — stakx - no longer contributing, Nov 19 '11 at 09:08
Found a good Youtube video about how to do this. Here it is: http://www.youtube.com/watch?v=ZY29YUqz3lE I have watched it and it works well. — H Bellamy, Nov 19 '11 at 09:19
@MerlynMorgan-Graham I have to wait for 8 hours before I can do that. — H Bellamy, Nov 19 '11 at 10:21

score 3 · Accepted Answer · answered Nov 19 '11 at 09:14

Have you tried using the winmm.dll library through p/Invoke?

That's what this article recommends: http://www.dreamincode.net/forums/topic/45693-controlling-sound-volume-in-c%23/

He's (strangely) licensed his code with GPL, so I can't post it here. But it is pretty basic and simply calls various mixer methods.

There's another winmm wrapper with an MIT license you can get here: http://winmm.codeplex.com/. It will have the same underlying code, but you won't have to GPL your code when you use it.

Control the computer's volume in C#

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