title: How to detect tapping (touch input) globally instead of mouse clicking?
body: <p>I want to make an app that shows itself when the user touches his screen. It shouldn't work for click. I looked up for the touch hanlders in Windows 7/8. But I saw that every touch window must be registered with RegisterTouchWindow</p>
  
  <p>TL;DR</p>
  
  <p>Is there a way to get the touch points position outside my window (globally)?</p>