ios - Is it possible to use iPhone's volume control buttons for some other purpose?

Question

I need to make a photo app.

Will it be possible to assign some function, like controlling the light intensity or brightness to an iPhone's hardware volume control buttons?

Answer 1

Changing the behavior of iPhone external hardware buttons is a violation of the iPhone Developer Program License Agreement.

There is an app that was banned from the appstore for trying this.

Ironically, iOS5 Camera App allows to use the volume control as a shutter. Perhaps the SDK will eventually allow more.