Return custom structure from Popup window in Powerbuilder 9.0
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. 

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
Return custom structure from Popup window in Powerbuilder 9.0
===

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. 

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