Need urgent help with a new Z program please

Question

I have to write a program that finds files matching some pattern, for example I have files test1,test2,test3 in a directory then if I pass test* as parameter it should find all the files i.e, test1,2,3. I have to then store the files in internal table, loop through it and have to call some other program zzz that has a selection screen with default parameters.
1) Is there any function that I can call that gives all the files by passing wild card (ex:test*) and store the files in internal table?
2) How do I call some other program ZZZ from my program?
3) How do I pass values from my program to other program's selection screen?
Your help would be greatly appreciated.
Thanks.
Mithun

Answer 1

Hi,
1) data: FILE_TABLE TYPE STANDARD TABLE OF FILE_INFO.
data: wa_file type file_info.
data: count type i.
CALL METHOD CL_GUI_FRONTEND_SERVICES=>DIRECTORY_LIST_FILES
            EXPORTING
                DIRECTORY = 'C:\'
                FILTER    = 'test.*'
                files_only = 'X'
            changing
                FILE_TABLE = file_table[]
                count      = count.
loop at file_table into wa_file.
  write: / wa_file-filename.
endloop.
2) You can use SUBMIT statement to call another program..
3) In the SUBMIT statement you can use the WITH addition to pass the values to the program.
Thanks,
Naren