title: Accessing control events of email form
body: <p>I am trying to develop an add-on for outlook which requires handling control changes.</p>
  
  <p>For instance I need to do some stuff when email subject is changed. To do this, I need to access text change event of subject texbox. </p>
  
  <p>I was just wondering whether anyone has done such thing or not?</p>
  
  <p>Thanks</p>