smartforms 如何轉成PDF格式預覽

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在輸出的列印預覽的情況下， 在tcode 輸入 ‘  PDF!   ’ ，然後就可以預覽了，也可以在菜單欄的轉到，找到 PDF預覽的頁簽檢視

如何轉換呢

DATA:w_bin_filesize TYPE i,

    gt_pdf_tab LIKE tline OCCURS 0 WITH HEADER LINE.

DATA tline TYPE TABLE OF  tline WITH HEADERLINE..

DATA gt_otf TYPE itcoo OCCURS 0 WITH HEADER LINE.

DATA:f_funcname TYPE rs38l_fnam.

DATA: f_formname TYPE tdsfname VALUE 'ZSCM001',

     control_parameters TYPE ssfctrlop,

     w_outoptions TYPE ssfcompop,

     errtab TYPE tsferror.

DATA:bin_file TYPE xstring.

DATA document_output_info TYPE ssfcrespd.

DATA job_output_info TYPE ssfcrescl.

DATA job_output_options TYPE ssfcresop.

DATA: binfilesize TYPE i,

file_name TYPE string,

file_path TYPE string,

full_path TYPE string.

CLEAR control_parameters.

  control_parameters-no_dialog = 'X'.

 control_parameters-preview   =''. "space.

 control_parameters-getotf   = 'X'.

* control_parameters-no_open   ='X'.

*  control_parameters-no_close  ='X'.

 control_parameters-langu    = sy-langu.

  w_outoptions-tddest = 'LP01'.

  w_outoptions-tdnoprint = 'X'.

  CALL FUNCTION 'SSF_FUNCTION_MODULE_NAME'

   EXPORTING

     formname = f_formname

   IMPORTING

     fm_name  = f_funcname.

  CALL FUNCTION f_funcname

   EXPORTING

     control_parameters   =control_parameters

     output_options      = w_outoptions

     user_settings       = 'X'

   IMPORTING

     document_output_info = document_output_info

     job_output_info     = job_output_info

     job_output_options   =job_output_options

    TABLES

     zsscm001            = it_result.

  gt_otf[] = job_output_info-otfdata[].

  CALL FUNCTION 'CONVERT_OTF'

   EXPORTING

     format = 'PDF'

     max_linewidth = 132

*     ARCHIVE_INDEX = ' '

*     COPYNUMBER = 0

*     ASCII_BIDI_VIS2LOG = ' '

*     PDF_DELETE_OTFTAB = ''

   IMPORTING

     bin_filesize = w_bin_filesize

*     bin_file = bin_file

* BIN_FILE=

   TABLES

    otf = gt_otf

    lines = tline

   EXCEPTIONS

     err_max_linewidth = 1

     err_format = 2

     err_conv_not_possible = 3

     err_bad_otf = 4

     OTHERS = 5.

  IF sy-subrc <>0.

*   MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno

*    WITHsy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.

 ENDIF.

  CALL METHODcl_gui_frontend_services=>file_save_dialog

   CHANGING

     filename = file_name

     path    = file_path

     fullpath = full_path.

  CALL FUNCTION 'GUI_DOWNLOAD'

   EXPORTING

     bin_filesize           = binfilesize

     filename               = full_path

     filetype               = 'BIN'

    TABLES

     data_tab               = tline[]

   EXCEPTIONS

     file_write_error       = 1

     no_batch               = 2

     gui_refuse_filetransfer = 3

     invalid_type           = 4

     no_authority           = 5

     unknown_error          = 6

     header_not_allowed     = 7

     separator_not_allowed   = 8

     filesize_not_allowed   = 9

     header_too_long        = 10

     dp_error_create        = 11

     dp_error_send          = 12

     dp_error_write         = 13