Is there any event at abap like form_unload event of windows programming

I want to code some thing just before the user leaves the selection screen, etiher by clicking on back gui button(f3) or exit button.
Is there such an event?
Thanks in advance.

Sure, use the AT SELECTION-SCREEN ON EXIT-COMMAND event in your code.
report zrich_0001.
parameters: p_check type c.
start-of-selection.
write:/ 'Start-of-selection'.
at selection-screen on exit-command .
* Do whatever you need to do.
Regards,
Rich Heilman

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Is there any event at abap like form_unload event of windows programming

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