title: CDhtmlDialog: How to capture event from iframe?
body: <p>I have a CHtmlDialog with an iframe in it.  I can capture onClick event from the button placed in the top level HTML with DHTML_EVENT_ONCLICK macro.  But the same method doesn't work with the event from the button placed in the iframe.  Is there a way to capture events from iframe?</p>
  
  <p>(By the way, both pages come from resource and they don't have cross-domain policy problem.)</p>