Implement F4 Value-Request Functionality in Dialog Programming

Hi. Apologies in advance if this is the wrong forum.
I'm on R/3 4.6c.
What is the best way to implement this:
AT SELECTION-SCREEN ON VALUE-REQUEST FOR xxxx-low.
in a dialog program?
I have my selection screen defined in my TOP include, but since dialog programs don't support report events I am not sure what to do.
Thank you for any assistance you could provide.
Best Regards,
Brett

make a new include like
include progname_screen_1001. at the top of your program.
goto include.
write the code below in your include.
SELECTION-SCREEN BEGIN OF SCREEN 1001.
write here your selection options and parameters.
also but here the code you want:
AT SELECTION-SCREEN ON VALUE-REQUEST FOR xxxx-low.
SELECTION-SCREEN END OF SCREEN 1001.
call the screen from anywhere:
call screen 1001.
if you want the selection-screen as subscreen than write
SELECTION-SCREEN BEGIN OF SCREEN 1001 as subscreen .
write here your selection options and parameters.
also but here the code you want:
AT SELECTION-SCREEN ON VALUE-REQUEST FOR xxxx-low.
SELECTION-SCREEN END OF SCREEN 1001.
when calling it
write it to PBO of your screen in which you but an subscreen area named subsel.
CALL SUBSCREEN SUBSEL INCLUDING 'PROGRAMNAME' '1001'.

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ENDCHAIN.
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hi sharin.
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Is there any for F4 value request function module using Field name as input? For example BUKRS

Hi,
Field A - BELNR
Field B - BUKRS (get f4 help based on field A)
Use:
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DATA : BEGIN OF itab OCCURS 0,
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*&      Form f4_bukrs_help
*       text
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FIELD_TAB              =
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hii vijay,
1. There are two important things :
a)PARAMETERS : a(10) TYPE c AS LISTBOX VISIBLE LENGTH 10.
b) Fm VRM_SET_VALUES
2. just copy paste
3.
REPORT abc.
TYPE-POOLS : vrm.
DATA : v TYPE vrm_values.
DATA : vw LIKE LINE OF v.
PARAMETERS : a(10) TYPE c AS LISTBOX VISIBLE LENGTH 10.
INITIALIZATION.
vw-key = '1'.
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EXPORTING
id = 'A'
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EXCEPTIONS
id_illegal_name = 1
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Check the link -
How to fill the values in List Box?
List Box
rgrds,
Shweta
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