smartform有许多的参数，了解这个参数所代表的含义对我们在赋值的时候有很重要的意义。
Tdimmed ( print immdiately )，tddelete ( delete after printing )，tdlifetime ( spool retention period ) , tddest ( output device spool ) , tdprinter ( device type name ),No_dialog ( general indicator ), preview ( print preview )，device ( output device )
ssfctrlop -getotf = 'X'. 此参数必须，负责不会导出PDF而是直接显示smartform
(若是需要要记录Smartform 打印的次数和打印的内容
w_OUTPUT_OPTIONS-TDIEXIT = 'X'. "预览打印后直接退出,
w_job_output_info-OUTPUTDONE = 'X'. “ 是否输出到打印机 )
若是不需要打开pdf预览，而是直接down PDF文件到本地，则不需要 function SSF_OPEN，
CLEAR w_outoptions.REFRESH:t_otf[].w_cparam-no_dialog = 'X'.
* w_cparam-preview = 'X'.
* w_cparam-no_open = 'X'.w_cparam-preview = space.w_cparam-no_close = ' '.w_cparam-getotf = 'X'.w_outoptions-tdimmed = abap_true.w_outoptions-tdnewid = abap_true.w_outoptions-tdfinal = abap_true.
* w_outoptions-bcs_langu = '1'.w_outoptions-tddest = 'SAP'.CALL FUNCTION w_fmoduleEXPORTINGcontrol_parameters = w_cparamoutput_options = w_outoptionsuser_settings = spacelist_header = lds_headerIMPORTINGjob_output_info = t_otf_from_fmTABLESlist_detail = ldt_detail_per2EXCEPTIONSformatting_error = 1internal_error = 2send_error = 3user_canceled = 4OTHERS = 5.IF sy-subrc <> 0.
* MESSAGE e000 WITH 'Call Smart Form Fail.'.MESSAGE 'Call Smart Form Fail.' TYPE 'S' DISPLAY LIKE 'S'.RETURN.ENDIF.APPEND LINES OF t_otf_from_fm-otfdata TO at_otf.t_otf[] = at_otf[].lv_time = lv_time + 1.ENDDO.CALL FUNCTION 'CONVERT_OTF'EXPORTINGformat = 'PDF'max_linewidth = 132IMPORTINGbin_filesize = w_bin_filesizebin_file = ex_bin_fileTABLESotf = t_otf[]lines = t_pdf_tabEXCEPTIONSerr_max_linewidth = 1err_format = 2err_conv_not_possible = 3err_bad_otf = 4OTHERS = 5.IF sy-subrc <> 0.MESSAGE 'Smart Form Transfer PDF Fail.' TYPE 'S' DISPLAY LIKE 'S'.EXIT.ENDIF.LOOP AT t_otf." INTO W_OTF .CONCATENATE t_otf-tdprintcom t_otf-tdprintparINTO w_pdf.APPEND w_pdf TO i_content_txt.ENDLOOP.CALL FUNCTION 'SX_OBJECT_CONVERT_OTF_PDF'EXPORTINGformat_src = 'OTF'format_dst = 'PDF'
* ADDR_TYPE =devtype = 'PDFUC' "'TWPDF'
* FUNCPARA =CHANGINGtransfer_bin = tran_resultcontent_txt = i_content_txtcontent_bin = lt_binobjhead = obj_headlen = lenEXCEPTIONSerr_conv_failed = 1OTHERS = 2.CONDENSE len.l_filesize = len.CALL FUNCTION 'GUI_DOWNLOAD'EXPORTINGbin_filesize = l_filesizefilename = lv_fullpathfiletype = 'BIN'
* WRITE_LF_AFTER_LAST_LINE = ABAP_TRUE
* SHOW_TRANSFER_STATUS = ABAP_TRUE
* VIRUS_SCAN_PROFILE = '/SCET/GUI_DOWNLOAD'
* IMPORTING
* FILELENGTH =TABLESdata_tab = lt_bin "l_pdf_tab "
* FIELDNAMES =EXCEPTIONSfile_write_error = 1no_batch = 2gui_refuse_filetransfer = 3invalid_type = 4no_authority = 5unknown_error = 6header_not_allowed = 7separator_not_allowed = 8filesize_not_allowed = 9header_too_long = 10dp_error_create = 11dp_error_send = 12dp_error_write = 13unknown_dp_error = 14access_denied = 15dp_out_of_memory = 16disk_full = 17dp_timeout = 18file_not_found = 19dataprovider_exception = 20control_flush_error = 21OTHERS = 22.
一般 打印的文件会在spool list中，怎么从spool list 中读取PDF到服务器上，
GET_PRINT_PARAMETERS 创建一组打印或存档的参数”spool list id
打印语句一般有：NEW-PAGE PRINT ON ,submit program_name to sap-spool
CONVERT_OTFSPOOLJOB_2_PDF (读取文件，然后可以download下来)