title: Extjs 3.4 get Key value on comboBox key events
body: <p>I want to identify which key is pressed on keyUp keyDown or other event on combo box. I have set <code>enableKeyEvents: true,</code> in my config file and added event handler.</p>
  
  <pre><code>this.a.on('keyup', this.onAKeyPress, this);
  </code></pre>
  
  <p>and function </p>
  
  <pre><code>onAKeyPress: function(e){
          console.log(e.getKey());
      },
  </code></pre>
  
  <p>And i get error, that e.getKey() is not a function in firebug. But in extJS documentation is said <a href="http://docs.sencha.com/extjs/3.4.0/#!/api/Ext.EventObject" rel="nofollow">http://docs.sencha.com/extjs/3.4.0/#!/api/Ext.EventObject</a> that e has function getKey(), so where the problem could be?</p>