title: Fire a (KEY_ENTER) key press event in GWT
body: <p>What I'm trying to do is fire an enter key press event in GWT.
  This is my keyhandler:</p>
  
  <pre><code>    itemBox.addKeyDownHandler(new KeyDownHandler() { 
            public void onKeyDown(KeyDownEvent event) {
                   if(event.getNativeKeyCode == KeyCodes.KEY_ENTER) {
                         // do something
                   }
  </code></pre>
  
  <p>Then later I wanna fire an enter key press event but I can't seem to figure out how I do this. I wanna do something like KeyDownEvent.setNativeKeyCode(KEY_ENTER).</p>
  
  <pre><code>     textBox.fireEvent(new KeyDownEvent(null));
  </code></pre>
  
  <p>Is it possible to set these parameters? </p>