[Trinidad] how to capture the Dialog Framework Close 'X' button event

[A F]

Hi,

I was trying the dialog framework and testing one by one the ReturnListener 
scenarios and than I tripped on the 'X' close button on top
of the Dialog Frame. This type of close is not being captured by the
Return Listener. 

Does someone know how to handle this event ? Has anyone had and solved
this problem.

I can think of workarounds by setting flag values on dialog open and
checking them on close for any changes but does someone know a cleaner
soln. ?

--
Regards,
Ahsan Fayyaz.