How can I globally detect multi-touch gestures?
<p>I'm looking to create a program in which the user can use multi-touch gestures to perform an action. The idea is to keep the program running in the tray and recognizing these multi-touch gestures and performing an action based on what the gesture is. An example of a gesture I'm hoping to recognize is two fingers swipe down to press alt-tab. How can I accomplish this?  </p>
