Top Level Form Disappearing

[CCorax]

I created a dialog to prompt for a registration code, etc., when my application runs. I show() the form, then in the following lines of code, collect the user data. Originally, I left the ShowWindow property as In Screen. Everything worked fine.. the dialog appeared, after I close it, the app moves on to the code after show.

However, when I try to set ShowWindow to As Top-Level Form, the form blips on the screen for an instant, and the code moves on. Looking at the Event output, Destroy() fires immediately after Activate(), and the form closes. Any ideas?

Thanks,
C

 

[Mike Gagnon]

Try :
oForm.SHOW(1) && Modal

 

[ajpa]

Setting ShowWindow as a Top Level Form automatically makes the form modeless. You have to issue READ EVENTS in the calling program, and you have to make sure that all methods called when you close the window include CLEAR EVENTS.

A tip I picked up on this forum the other day was to include

ON SHUTDOWN DO cleanup

in the calling program, and to make sure that 'Cleanup' contains CLEAR EVENTS. That way you avoid inadvertently sending the remote computer into an unrecoverable loop.

Tony

 

[chpicker]

Keep in mind that this WILL NOT WORK if you are already in an event loop! This kind of form would need to be run before you enter your main event loop. You can only have one READ EVENTS at a time. All subsequent READ EVENTS commands will be ignored.

Ian