title: Setting application-wide hotkey in C#
body: <p>There is a post to set system-wide global hotkey in C# 
  <a href="https://stackoverflow.com/questions/2194752/how-to-set-hotkey-system-wide-in-c">here</a></p>
  
  <p>I want to set application-wide hotkey such that if user presses a hotkey on any child window of an application, a particular window will receive and process it.</p>
  
  <p>Thanks.</p>