title: Capture ESC in textbox
body: <p>I want to have the <kbd>Esc</kbd> key undo any changes to a textbox since it got focus. </p>
  
  <p>I have the text, but can't seem to figure out how to capture the <kbd>Esc</kbd> key. Both <code>KeyUp</code> and <code>KeyPressed</code> don't seem to get it.</p>