Example:  We will create directory ’Temp’ on drive C:

CALL FUNCTION ’GUI_CREATE_DIRECTORY’      
  EXPORTING          
    DIRNAME            = ’C:\Temp’      
  EXCEPTIONS          
    FAILED              = 1          
    OTHERS              = 2 
              .  
IF SY-SUBRC <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*    WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.  
ENDIF.

You can get name of months by select table ’T247’

DATA: it_month_name TYPE TABLE OF t247 WITH HEADER LINE.

SELECT * INTO TABLE it_month_name FROM T247
       WHERE spras = sy-langu.

or using function module ’MONTH_NAMES_GET’

DATA: it_month_name TYPE TABLE OF t247 WITH HEADER LINE.
CALL FUNCTION ’MONTH_NAMES_GET’      
  EXPORTING          
    LANGUAGE                         = SY-LANGU
*    IMPORTING
*        RETURN_CODE                 =      
  TABLES          
    MONTH_NAMES                      = it_month_name
  EXCEPTIONS          
    MONTH_NAMES_NOT_FOUND            = 1          
    OTHERS                           = 2         
  .  
IF SY-SUBRC <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*                WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.  
ENDIF.

Fn Name           Description
START_FORM        Start Layout Set
OPEN_FORM         Open Layout Set
WRITE_FORM        Write data by specified text element in window
WRITE_FORM_LINES  Write data in TLINE structure to window
CLOSE_FORM        Close Layout Set
END_FORM          End Layout Set
CONTROL_FORM      Create SAPscript Control Statement

See Example

Technorati Tags:

Statement                     Description
AT FIRST ... END AT           The statement in this block will be executed 
                              if that record is a first record of internal table.
AT LAST ... END AT            The statement in this block will be executed
                              if that record is a last record of internal table.

AT NEW  ... END AT     The statement is this block will be executed
                              if the record contains value of the beginning group.  

Select ... Into Table

SELECT * FROM TABLE1 INTO TABLE itab1
         WHERE fld1 = ’AA’.

Select ... Appending Table

SELECT * FROM TABLE1 APPENDING TABLE itab1
         WHERE fld1 = ’AA’. 

Two statements are similar if itab1 has no entry.

But if itab1 has at least one row before select clause:

• Select ... Into Table
  The entries of internal table will be cleared before adding new records.

Option            Description
NO-TITLE          New page without title
WITH-TITLE        New page with title
NO-HEADING        New page without column heading
WITH-HEADING      New page with column heading
LINE-COUNT        Specify line count in new page
LINE-SIZE         Specify line size in new page
PRINT [ON/OFF]    Specify printer control