F4 help to give desktop path for retrieving file name

Hi Guys,
I want a big help from u people, I worked on module pool programming and in that i had written some BDC also in that. Now my concern is i need to give F4 help path for the user to goto Desktop and pick the file from his PC.He will goto transaction and then only he can run the Report.
Now i had tried this
at selection-screen on value-request for p_filename.
v_mask = ',Tab Delimited (.txt),.txt.'.
CALL FUNCTION 'WS_FILENAME_GET'
EXPORTING
    DEF_FILENAME     = ' '
    DEF_PATH         = ' '
    MASK             = v_mask
    TITLE            = ' '
IMPORTING
    FILENAME         = p_filename
EXCEPTIONS
    INV_WINSYS       = 1
    NO_BATCH         = 2
    SELECTION_CANCEL = 3
    SELECTION_ERROR = 4
    OTHERS           = 5.
but in at selection screen i need to give parameters or select-options... which is not there as u know bcoz its a module pool programming.....
Can u pls help me out its urgent!!!!!!!!
Rewards will be definite....

Hi Abdul,
Refer demo program DEMO_DYNPRO_F4_HELP_MODULE in SE38.
Check Flow Logic by double clicking on the screen 100.
PROCESS BEFORE OUTPUT.
MODULE INIT.
PROCESS AFTER INPUT.
MODULE CANCEL AT EXIT-COMMAND.
PROCESS ON VALUE-REQUEST.
FIELD CARRIER MODULE VALUE_CARRIER.
FIELD CONNECTION MODULE VALUE_CONNECTION.
Reward points if it helps.
Regards,
Amit Mishra
Message was edited by: Amit Mishra

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F4 Help to get the path for a File source directory

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Pls Help....
Also are there function modules for providing F4 help for getting the path to a file in application directory?

Try this method CL_GUI_FRONTEND_SERVICES.
It is a Global CLASS which is having different methods for different purposes
see the documentation of it and use the methods of it
see
CL CL_GUI_FRONTEND_SERVICES
Short Text
Frontend Services
Functionality
The class CL_GUI_FRONTEND_SERVICES contains static methods for the following areas:
File functions
Directory functions
Registry
Environment
Write to / read from clipboard
Upload / download files
Execute programs / open documents
Query functions, such as Windows directory, Windows version, and so on
Standard dialogs (open, save, directory selection)
Example
Determine the temp directory on your PC:
DATA: TEMP_DIR TYPE STRING.
CALL METHOD CL_GUI_FRONTEND_SERVICES=>GET_TEMP_DIRECTORY
CHANGING
TEMP_DIR = TEMP_DIR
EXCEPTIONS
CNTL_ERROR = 1
ERROR_NO_GUI = 2.
IF SY-SUBRC 0.
Error handling
ENDIF.
flush to send previous call to frontend
CALL METHOD CL_GUI_CFW=>FLUSH
EXCEPTIONS
CNTL_SYSTEM_ERROR = 1
CNTL_ERROR = 2
OTHERS = 3.
IF SY-SUBRC 0.
Error handling
ENDIF.
WRITE: / 'Temporary directory is:', TEMP_DIR.
Notes
The class CL_GUI_FRONTEND_SERVICES is based on the Control Framework. See the documentation for more information, in particular on CL_GUI_CFW=>FLUSH which must be called after many CL_GUI_FRONTEND_SERVICES methods.
Migration Information
The old file transfer model was based on function modules of the function group GRAP. The old features have been replaced by the class CL_GUI_FRONTEND_SERVICES. The following list contains the old function modules (italic) and the new methods (bold) that replace them:
CLPB_EXPORT
CLIPBOARD_EXPORT
CLPB_IMPORT
CLIPBOARD_IMPORT
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GUI_DOWNLOAD, dialog replaced by FILE_SAVE_DIALOG
PROFILE_GET
No replacement, use REGISTRY_* methods instead
PROFILE_SET
No replacement, use REGISTRY_* methods instead
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REGISTRY_GET_VALUE, REGISTRY_GET_DWORD_VALUE
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WS_FILE_DELETE
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DIRECTORY_EXIST
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Reward points if useful.

I want to get desktop path for client user using webutil

oracle database 11g
oracle forms 10 g
client windows
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/* When-Button-Pressed trigger */
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f_file Client_Text_IO.File_Type;
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HI
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Hello,
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Edited by: ellenore on Apr 26, 2012 5:52 AM
Edited by: ellenore on Apr 26, 2012 6:03 AM

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Message was edited by:
jsfNewbie

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F4 help to give desktop path for retrieving file name

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