How to prevent window close during data entry

[Mike Rowan]

Hi all.
I've found yet another thing I just don't get.

I want to prevent a window closing if my 'entering data' flag iEDmode is not zero.
$event method (overridden) I have:

On evClosebox
If iEDmode>0
    OK message [A suitable message]
    Quit event handler (Discard event)
End if

I thought the discarded  event is the click on the closebox. But the window closes anyway. 

No doubt there is a simple answer to this. Care to share?

Mike Rowan
Mobile: 0417 812 509
Email: mgrowan at fastmail.com