SAPScript Print Program

Print Program and Function modules used in it .   The  function modules like OPEN_FORM CLOSE_FORM,COMMAND_FORM ,WRITE_FORM and Print Program Etc Explained with example.

The print program is used to print the actual form ,the functions the print program has to do include retrieving of data from database tables , selecting a FORM and printing of TEXT ELEMENTS in a desired sequence.             The function modules used in aprint prgram are :   OPEN_FORM START_FORM WRITE_FORM CONTROL_FORM END_FORM CLOSE_FROM   To start printing a form we must use OPEN_FORM and in the end we should use CLOSE_FORM to complete the spool request.   Function modules in detail.   OPEN_FORM function module This function module should be called first before any printing can take place , here we specify the name of the form and the print language.   CALL FUNCTION 'OPEN_FORM' EXPORTING    DIALOG         = 'X'    DEVICE         = 'PRINTER'    FORM            = form name    LANGUAGE   = SY-LANGU *  OPTIONS      = EXCEPTIONS    CANCELLED  = 1    DEVICE          = 2    FORM            = 3    OTHERS        = 11 .   IF SY-SUBRC NE 0. MESSAGE ... ENDIF.   In the above function module the parameter FORM      = Name of form DEVICE    = PRINTER (print using spool),TELEFAX (fax output)                    SCREEN (output to screen) OPTIONS = It is a structure of type ITCPO and it controls the various                    attributes like number of copies , print preview etc.   START_FROM function module   This function module is called if we want to use different forms with similar characterstics in a single spool request,it must be closed by END_FORM function module.     CALL FUNCTION 'START_FORM' EXPORTING   FORM            =   LANGUAGE    =   STARTPAGE  = EXCEPTIONS   FORM            = 1   OTHERS        = 7 .   IF SY-SUBRC NE 0. MESSAGE ... ENDIF.   WRITE_FORM Function module   This function module is used to write text in a window in the form using text elements (/:E element). We can specify whether the text is to be appended , replaced or added and in which portion of the window it will be printed i.e TOP, BOTTOM ,BODY. In this function module actual printing takes place.   CALL FUNCTION 'WRITE_FORM' EXPORTING    ELEMENT    =    FUNCTION  =    TYPE          =    WINDOW    = EXCEPTIONS    ELEMENT   =  1     OTHERS    =  9 .   IF SY-SUBRC NE 0. MESSAGE ... ENDIF.   Here in this function module the ELEMENT specifies which textelement is printed . WINDOW specifies which window of the form to be print in. TYPE specifies the output area of the window TOP,BOTTOM,BODY. FUNCTION specifies whether the text is to be appended , replaced or added.   CLOSE_FORM function module   This function module should be called in the end and it has no exporting parameter.   CALL FUNCTION 'CLOSE_FROM' IMPORTING *   RESULT     = EXCEPTIONS     UNOPENED = 1     OTHERS     =  5   .   IF SY-SUBRC NE 0. MESSAGE ... ENDIF.    Here the result parameteer returns the status information and print/fax parameters after the form has been printed.     CONTROL_FORM function module    This function module is used to insert SAPScript control commands like NEW-PAGE etc from whithin the ABAP program.   CALL FUNCTION 'CONTROL_FORM' EXPORTING   COMMAND    = EXCEPTIONS   UNOPENED   = 1   OTHERS        = 3 .   IF SY-SUBRC NE 0. MESSAGE ... ENDIF.     NOTE: The print program and the form are stored in the table TNAPR