Answer / Vijay Singh Yadav

In SAP ABAP, you can link forms to event-driven logic by defining events for your form using EVENT-OF statements and implementing the corresponding handler methods. Here's an example:

```abap
FORM zmy_form WITH DATA my_data.

SELECT FIELDS symbol_name
FROM SYNAME INTO TABLE @DATA(ls_symbols) WHERE name = 'ZMY_FORM'.

LOOP AT ls_symbols ASSIGNING FIELD-SYMBOL(<fs_symbol>).
IF <fs_symbol>-name = 'BEFORE_INPUT'.
WRITE: / 'Found BEFORE_INPUT event!' .
... " Your event handler code here.
ENDIF.
ENDLOOP.

ENDFORM zmy_form.
```

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