DEQUEUE lock entry when close window

[FredericGirod]

Hello, I'm little new to BSP.

I have to add a lock entry logic in my code. To ENQUEU the lock entry it's not a problem, my problem is "if the user just close the window".

I have try the EventHandler "Destroy", but .. nothing append.

Do you have any idea where to catch the event, that the user close the windows, or change the page.

Thanks

Fred

[FredericGirod]

The solution :