title: How to check whether the program is being used?
body: <p>I need to close the application (C#) when user doesn't use it - let's say that when there is no Click event on any form of the program (there are about 100 forms). Is there any way to do that without handling Click even on each form of the app. (I have the thread running each minute, where it could be checked)? 
  Thanks in advance!</p>