title: How to make global keyboard hook for key combinations?
body: <p>I'm using <a href="http://www.codeproject.com/Articles/19004/A-Simple-C-Global-Low-Level-Keyboard-Hook" rel="nofollow">it</a> to make global keyboard hook. There are such lines : </p>
  
  <pre><code>gkh.HookedKeys.Add(Keys.A);
  gkh.HookedKeys.Add(Keys.B);
  </code></pre>
  
  <p>to register hooked hotkeys. How to modify that solution to make hook for combination, for example A+B, but not single A or B?</p>