>Naomi,
>
>I have these commands in the main program of the application:
>
>do mainmenu.mpr
>on shutdown do shutdownprogram
>
>read events
>
>I put assert command into shutdown program. However, it's not being called when I try to close the application in IDE by clicking on the x of the screen.
>What is it called then and why this program is not called?
>
>I usually do a VerifyQuit() trap on at least two spots: In a menu option, and putting the same code in the QueryUnload() event (this event fires when one tries to close a form using the X button.)

This application is run in _screen. For now I'm trying to determine what is called when I click on x in the screen. It looks like exactly the same code which is called from the Exit button on the toolbar, but why it's called and not the on shutdown procedure? Looking into this problem now.