title: What is the Silverlight's FindElementsInHostCoordinates equivalent in WPF?
body: <p>I would like to perform a rectangual hit test on WPF Canvas component in order to get Controls that are overlapped by a Rectangle framework element. I found a Silverlight's <code>VisualTreeHelper.FindElementsInHostCoordinates</code> method, but apparently it's not available in WPF.</p>
  
  <p>What's the best method to achieve such functionality?</p>