Can't you just do what you want using directly CoreAudio?

laurent

On Feb 27, 2011, at 12:08 AM, David Rowland wrote:

> Apple seems to have made it impossible for an app to control the system 
> volume. The user can use the physical buttons, and an app can contain an 
> MPVolumeView which lets the user control the volume, but there is no 
> programmed access to that setting. 
> 
> I want a volume control that looks and behaves differently from MPVolumeView. 
> I think I know how to adapt it to do what I need except this -- when I touch 
> the control I want it to go to that setting. In other words, I don't want to 
> have to find the slider button first and then move it, just jump to the spot 
> I have touched.
> 
> Anyone have a suggestion?
> 
> thanks,
> 
> David
> 
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