title: Get elapsed time in Qt
body: <p>I'm looking for the equivalent in Qt to <code>GetTickCount()</code></p>
  
  <p>Something that will allow me to measure the time it takes for a segment of code to run as in:</p>
  
  <pre><code>uint start = GetTickCount();
  // do something..
  uint timeItTook = GetTickCount() - start;
  </code></pre>
  
  <p>any suggestions?</p>