SAP Smart Form 无法通过程序自定义默认打印机问题解决

*&---------------------------------------------------------------------*
*&      Form  FRM_SET_PRINT_PARAM
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*      <--P_LS_CONTROL_PARAM  text
*      <--P_LS_COMPOSER_PARAM  text
*----------------------------------------------------------------------*
FORM sub_set_print_param  CHANGING pv_control_param  TYPE ssfctrlop
                                   pv_composer_param TYPE ssfcompop.

  DATA: ls_itcpo     TYPE itcpo.
  DATA: lv_repid     TYPE sy-repid.
  DATA: lv_device    TYPE tddevice.
  DATA: lv_retcode    TYPE sysubrc.
  lv_repid = sy-repid.

  CALL FUNCTION 'WFMC_PREPARE_SMART_FORM'
    EXPORTING
      pi_nast       = nast
      pi_repid      = lv_repid
    IMPORTING
      pe_returncode = lv_retcode
      pe_itcpo      = ls_itcpo
      pe_device     = lv_device.

  IF sy-subrc = 0 AND lv_retcode = 0.
    MOVE-CORRESPONDING ls_itcpo TO pv_composer_param.
    pv_composer_param-tdnewid    = abap_true.
    pv_control_param-device      = lv_device.
    pv_control_param-no_dialog   = abap_true.
    pv_control_param-getotf      = ls_itcpo-tdgetotf.
    pv_control_param-langu       = nast-spras.
  ELSE.
    pv_composer_param-tdnewid    = abap_true.“新的spool
    pv_composer_param-tdimmed    = abap_true.”立即打印
    pv_composer_param-tddest     = print_co-desti.“打印机名称
    pv_control_param-no_dialog   = abap_true.”跳过手动选择打印机
    pv_control_param-langu       = print_co-spras.
  ENDIF.
ENDFORM.

在调用FORM的时候检查USER_SETINGS 参数是否置空了，改参数默认是‘X’. 若改参数不为空，则系统会默认读取 user profile 里默认用户参数 设置的打印机，如果

用户参数没有设置，则会弹出打印机参数选择dialog。

 CALL FUNCTION gv_fmname
      EXPORTING
        control_parameters = gs_control
        output_options     = gs_options
        it_components      = gt_components
        it_operations      = gt_operations
        is_header          = gs_header
       user_settings      = ' '
      EXCEPTIONS
        formatting_error   = 1
        internal_error     = 2
        send_error         = 3
        user_canceled      = 4
        OTHERS             = 5.