Find UserExit for Transaction

A sample program to get all User Exit for a transaction.

REPORT zuserexit_find.

TABLES : TSTC, TADIR, MODSAPT, MODACT, TRDIR, TFDIR, ENLFDIR.
TABLES : TSTCT.
DATA : JTAB LIKE TADIR OCCURS 0 WITH HEADER LINE.
DATA : FIELD1(30).
DATA : V_DEVCLASS LIKE TADIR-DEVCLASS.
PARAMETERS : P_TCODE LIKE TSTC-TCODE OBLIGATORY.

SELECT SINGLE * FROM TSTC WHERE TCODE EQ P_TCODE.
IF SY-SUBRC EQ 0.
  SELECT SINGLE * FROM TADIR WHERE PGMID = 'R3TR'
                   AND OBJECT = 'PROG'
                   AND OBJ_NAME = TSTC-PGMNA.
  MOVE : TADIR-DEVCLASS TO V_DEVCLASS.
  IF SY-SUBRC NE 0.
    SELECT SINGLE * FROM TRDIR WHERE NAME = TSTC-PGMNA.
    IF TRDIR-SUBC EQ 'F'.
      SELECT SINGLE * FROM TFDIR WHERE PNAME = TSTC-PGMNA.
      SELECT SINGLE * FROM ENLFDIR WHERE FUNCNAME =
      TFDIR-FUNCNAME.
      SELECT SINGLE * FROM TADIR WHERE PGMID = 'R3TR'
                         AND OBJECT = 'FUGR'
                         AND OBJ_NAME EQ ENLFDIR-AREA.

      MOVE : TADIR-DEVCLASS TO V_DEVCLASS.
    ENDIF.
  ENDIF.
  SELECT * FROM TADIR INTO TABLE JTAB
                WHERE PGMID = 'R3TR'
                  AND OBJECT = 'SMOD'
                  AND DEVCLASS = V_DEVCLASS.
  SELECT SINGLE * FROM TSTCT WHERE SPRSL EQ SY-LANGU AND
                                   TCODE EQ P_TCODE.
  FORMAT COLOR COL_POSITIVE INTENSIFIED OFF.
  WRITE:/(19) 'Transaction Code - ',
       20(20) P_TCODE,
       45(50) TSTCT-TTEXT.
  SKIP.
  IF NOT JTAB[] IS INITIAL.
    WRITE:/(95) SY-ULINE.
    FORMAT COLOR COL_HEADING INTENSIFIED ON.
    WRITE:/1 SY-VLINE,
           2 'Exit Name',
          21 SY-VLINE ,
          22 'Description',
          95 SY-VLINE.
    WRITE:/(95) SY-ULINE.
    LOOP AT JTAB.
      SELECT SINGLE * FROM MODSAPT
             WHERE SPRSL = SY-LANGU AND
                    NAME = JTAB-OBJ_NAME.
      FORMAT COLOR COL_NORMAL INTENSIFIED OFF.
      WRITE:/1 SY-VLINE,
             2 JTAB-OBJ_NAME HOTSPOT ON,
            21 SY-VLINE ,
            22 MODSAPT-MODTEXT,
            95 SY-VLINE.
    ENDLOOP.
    WRITE:/(95) SY-ULINE.
    DESCRIBE TABLE JTAB.
    SKIP.
    FORMAT COLOR COL_TOTAL INTENSIFIED ON.
    WRITE:/ 'No of Exits:' , SY-TFILL.
  ELSE.
    FORMAT COLOR COL_NEGATIVE INTENSIFIED ON.
    WRITE:/(95) 'No User Exit exists'.
  ENDIF.
ELSE.
  FORMAT COLOR COL_NEGATIVE INTENSIFIED ON.
  WRITE:/(95) 'Transaction Code Does Not Exist'.
ENDIF.

AT LINE-SELECTION.
  GET CURSOR FIELD FIELD1.
  CHECK FIELD1(4) EQ 'JTAB'.
  SET PARAMETER ID 'MON' FIELD SY-LISEL+1(10).
  CALL TRANSACTION 'SMOD' AND SKIP FIRST   SCREEN.