Codigo fuente de programa en ABAP para buscar User-exits

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  .
report zuserexit no standard page heading.
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,
  v_lines type n.
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 'Nombre Exit',
  21 sy-vline ,
  22 'Descripcion',
  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:/ 'Número de Exits:' , sy-tfill.
  else.
  format color col_negative intensified on.
  write:/(95) 'No existe ninguna user exit'.
  endif.
  else.
  format color col_negative intensified on.
  write:/(95) 'El código de transacción no existe'.
  endif.
describe table jtab lines v_lines.
WRITE: ':D '.
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.