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197

answers:

1

Which interface should I use to control the volume of my application on Vista or Windows 7?

The programming language doesn't matter.

+2  A: 

A brief history of the windows audio API's

There are several volume control points in Vista/W7

You probably want to use the ISimpleAudioVolume interface

David Carlson
Huge thanks, I tried to use ISimpleAudioVolume before but for some reason it didnt worked, I'm sure I did something wrong with my header conversion, I'm using Delphi. Reading Larry's blog makes life easier :)
Andy