title: Return custom structure from Popup window in Powerbuilder 9.0
body: <p>How do you return values or structures from a Popup window in Powerbuilder 9.0? The CloseWithReturn is only valid for Response windows and thus is not available. When I set a value to the Message.PowerObjectParm, the value becomes null when the Popup window closes. I need to use a Popup window so the user can click back to the caller window and scroll through rows. </p>
  
  <p>Program flow:
  1) Window A OpenWithParm
  2) Window B is now open
  3) User interacts with both windows
  3) User closes Window B
  4) Window B needs to pass a structure back to window A</p>