ABAP Folder Selection input box

The below program will create a input selection that will pop up the folder selection box.

REPORT  z_select_folder.

CONSTANTS: c_default_folder TYPE rlgrap-filename VALUE 'C:\'.

SELECTION-SCREEN BEGIN OF BLOCK b1 WITH FRAME TITLE text-002.
PARAMETERS :  p_folder LIKE rlgrap-filename OBLIGATORY DEFAULT c_default_folder.
SELECTION-SCREEN END OF BLOCK b1.

AT SELECTION-SCREEN ON VALUE-REQUEST FOR p_folder.
  PERFORM select_folder CHANGING p_folder.


FORM select_folder  CHANGING p_p_folder.
  DATA: l_path TYPE string.

  CALL METHOD cl_gui_frontend_services=>directory_browse
    EXPORTING
      window_title         = 'Select Folder'
      initial_folder       = 'C:\'
    CHANGING
      selected_folder      = l_path
    EXCEPTIONS
      cntl_error           = 1
      error_no_gui         = 2
      not_supported_by_gui = 3
      OTHERS               = 4.
  IF sy-subrc <> 0.
    MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
               WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
  ENDIF.

  MOVE l_path TO p_p_folder.
ENDFORM.                    " SELECT_FOLDER