DISPLAY_DFREG_F4 SAP Function module

DISPLAY_DFREG_F4 is a standard SAP function module available within R/3 SAP systems depending on your version and release level. Below is the pattern details for this FM showing its interface including any import and export parameters, exceptions etc as well as any documentation contributions (Comments) specific to the object.

See here to view full function module documentation and code listing, simply by entering the name DISPLAY_DFREG_F4 into the relevant SAP transaction such as SE37 or SE80.

Associated Function Group: 0KKZ
Released Date: Not Released
Processing type: Normal fucntion module

Pattern for FM DISPLAY_DFREG_F4 - DISPLAY DFREG F4

CALL FUNCTION 'DISPLAY_DFREG_F4' "
  EXPORTING
*   display = 'X'               "               Set display mode for F4 help
    autyp =                     " t399x-autyp
  IMPORTING
    dfreg =                     " t399x-dfreg   Selected default rule
    value_selected =            " c             Value selected ('X' or SPACE)
    .  "  DISPLAY_DFREG_F4

ABAP code example for Function Module DISPLAY_DFREG_F4

The ABAP code below is a full code listing to execute function module DISPLAY_DFREG_F4 including all data declarations. The code uses the latest in-line data DECLARATION SYNTAX but I have included an ABAP code snippet at the end to show how declarations would look using the original method of declaring data variables up front. This will allow you to compare and fully understand the new inline method. Please note some of the newer syntax such as the @DATA is not available until a later 4.70 service pack (SP8).

DATA:
ld_dfreg  
 
 TYPE T399X-DFREG
,
ld_value_selected  
 
 TYPE C
.


DATA(ld_display) = 'some text here'.
 

SELECT single AUTYP 
  FROM T399X 
  INTO @DATA(ld_autyp).

.

CALL FUNCTION 'DISPLAY_DFREG_F4'
  EXPORTING
*   display =                    ld_display
    autyp =                      ld_autyp
  IMPORTING
    dfreg =                      ld_dfreg
    value_selected =             ld_value_selected
    .  "  DISPLAY_DFREG_F4

IF SY-SUBRC EQ 0.
  "All OK
ENDIF.

ABAP code to compare 7.40 inline data declaration with original syntax

The below ABAP code uses the older none in-line data declarations. This allows you to see the coding differences/benefits of the later inline syntax. It may also be useful if you are using an older version of SAP as some of the newer syntax above, such as the @DATA is not available until 4.70 EHP 8.

DATA:

ld_dfreg
 
 TYPE T399X-DFREG ,
ld_display
 
 TYPE STRING ,
ld_value_selected
 
 TYPE C ,
ld_autyp
 
 TYPE T399X-AUTYP .


ld_display = 'some text here'.

SELECT single AUTYP 
  FROM T399X 
  INTO ld_autyp.