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  1.  Home
  2. RPG400-L
  3. June 2005

RE: multi language interfaces

Hi Arco,

Below is a couple of simple programs - the first has 12 mesage IDs in a compile-time array. It calls another program to retrieve the text for each message ID and places it in an array. This array overlays the screen/print fields that you would normally populate. The screen/print fields are denoted with the names FLDxxx. Note that these fields are currently defined as 100a - this is only to allow the program to compile. In your program these fileds will be externally defined in the DSPF/PRTF so you would just name the fields, but not give them a length or type. Here's program 1. The text will be displayed to your workstation for the 12 messages defined - NOTE that the first is deliberately wrong and a default text (*** TEXT NOT FOUND ***) will be displayed. This is to show how you can override text if it isn't found.

    HOPTION(*NODEBUGIO:*SRCSTMT:*SHOWCPY)
     **********************************************************************
     * What's happening here..?
     *
     * 1) There's a compile-time array at the foot of the program.
     * 2) There's a DS containing a number of 132a fields - these
     *    will contain the message text of each Message description
     *    listed in the compile-time array.
     * 3) Overlaying each field in the DS is a screen/print field.
     *    These fields are denoted FLDxxx. They have no definition
     *    in the program because it is retrieved from the external
     *    description in the disply/print file.
     * 4) Overlaying the whole of the DS is an array. This array is
     *    populated in a loop - processing each message description
     *    at a time.
     *
     *    The net result is the screen/print fields are populated
     *    with the text from each message description.
     **********************************************************************

     * Report Text...
    Dmsg              s              7    Dim(12) CTDATA
    D msgElem         s              3s 0 inz(%elem(msg))

    Dds_SFLDSO        ds
    D SFLFLD1                      132
    D SFLFLD2                      132
    D SFLFLD3                      132
    D SFLFLD4                      132
    D SFLFLD5                      132
    D SFLFLD6                      132
    D SFLFLD7                      132
    D SFLFLD8                      132
    D SFLFLD9                      132
    D SFLFLD10                     132
    D SFLFLD11                     132
    D SFLFLD12                     132
    D  FLD001                      100    OVERLAY(SFLFLD1:1)
    D  FLD002                      100    OVERLAY(SFLFLD2:1)
    D  FLD003                      100    OVERLAY(SFLFLD3:1)
    D  FLD004                      100    OVERLAY(SFLFLD4:1)
    D  FLD005                      100    OVERLAY(SFLFLD5:1)
    D  FLD006                      100    OVERLAY(SFLFLD6:1)
    D  FLD007                      100    OVERLAY(SFLFLD7:1)
    D  FLD008                      100    OVERLAY(SFLFLD8:1)
    D  FLD009                      100    OVERLAY(SFLFLD1:1)
    D  FLD010                      100    OVERLAY(SFLFLD9:1)
    D  FLD011                      100    OVERLAY(SFLFLD10:1)
    D  FLD012                      100    OVERLAY(SFLFLD11:1)

     * Array overlaying the DS containing the soft-coded fields...
    DSFLDSO_P         s               *   inz(%addr(ds_SFLDSO))
    DSFLDSO           s            132    Based(SFLDSO_P) dim(%elem(msg))
    DIdx              s              3s 0
    DdisplayField     s             50a
     **********************************************************************

     * ...Retrieve override language details (if required) here...
    C*****              eval      RM_LANG = overrideLang

* Retrieve headings for document... ?
C for idx = 1 to msgElem by 1
C eval RM_MSGID = msg(idx)

    C                   call      'RTVMSG'
    C                   parm                    RM_MSGID          7
    C                   parm                    RM_RPLDTA        40
    C                   parm                    RM_MSGTXT       132
    C                   parm                    RM_HLPTXT       512
    C                   parm                    RM_LANG           2
    C                   parm                    RM_RTCD           2

    C                   eval      SFLDSO(idx) = %trim(RM_MSGTXT)

    C                   eval      displayField = SFLDSO(idx)
    C     displayField  dsply     ' '
    C                   endfor

* Close called program, and return... ?
C call 'RTVMSG'
C eval *inlr = *ON
C return
********************************************************************** ?
**
CAE0001
CAE0005
CAE0009
CAE0014
CAE0020
CAE0023
CAE0024
CAE0025
CAE0026
CAE0027
CAE0030

The second program - named RTVMSG is called to retrieve the text for each message ID. This is where you would override message file libraries depending upon the language passed in or the default language. At the moment it is hardcoded to use QCPFMSG so this sample will work with little effort.

    H OPTION(*NODEBUGIO)
   ??**********************************************************************

   ??* Define Variables for QMHRTVM API call...
    D a_MsgInf        DS          4000
    D  a_Data                 1   4000
    D  a_RtvMsgID                    7    OVERLAY(a_Data:27)
    D  a_MsgSev                      9B 0 OVERLAY(a_Data:9)
    D  a_NbrSbsFmt                   9B 0 OVERLAY(a_Data:37)
    D  a_MsgCCSID                    9B 0 OVERLAY(a_Data:49)
    D  a_MsgOffSet                   9B 0 OVERLAY(a_Data:65)
    D  a_MsgLen                      9B 0 OVERLAY(a_Data:69)
    D  a_HlpOffSet                   9B 0 OVERLAY(a_Data:77)
    D  a_HlpLen                      9B 0 OVERLAY(a_Data:81)
    D  a_SbsOffSet                   9B 0 OVERLAY(a_Data:89)
    D  a_SbsOffLen                   9B 0 OVERLAY(a_Data:93)

    D a_MsgInfLen     S              9B 0
    D a_Format        S              8
    D a_MsgId         S              7
    D a_FullMsgf      S             20
    D a_RplDta        S             40
    D a_RplDtaLen     S              9B 0
    D a_SubValues     S             10
    D a_CtlChar       S             10
    D a_ErrCde        S              9B 0
    D a_RtvOpt        S             10
    D a_CCSID         S              9B 0
    D a_RplCCSID      S              9B 0

    D a_MsgTxt        S            132
    D a_HlpTxt        S            512
    D a_FmtStr        S            250
    D a_MsgFound      S               N

    D                SDS
    Dw_Parms            *PARMS

     * Retrieve Message Description API Prototype...
    DQMHRTVM          PR                  EXTPGM('QMHRTVM')
    D a_MsgInf                    4000
    D a_MsgInfLen                    9B 0
    D a_Format                       8
    D a_MsgId                        7
    D a_FullMsgf                    20
    D a_RplDta                      40
    D a_RplDtaLen                    9B 0
    D a_SubValues                   10
    D a_CtlChar                     10
    D a_ErrCde                       9B 0
    D a_RtvOpt                      10
    D a_CCSID                        9B 0
    D a_RplCCSID                     9B 0
     **********************************************************************
    C     *ENTRY        PLIST
    C                   parm                    RM_MSGID          7
    C                   parm                    RM_RPLDTA        40
    C                   parm                    RM_MSGTXT       132
    C                   parm                    RM_HLPTXT       512
    C                   parm                    RM_LANG           2
    C                   parm                    RM_RTCD           2
     **********************************************************************

     * No call parameters, then shut down program...
    C                   if        w_Parms = 0
    C                   eval      *inLR = *on
    C                   return
    C                   endif

* Hardcode message file name - you would derive it here...
* Hardcode message file library - you MAY derive it here using language...
C eval a_FullMsgf = 'QCPFMSG *LIBL'

     * Retrieve message text...
    C                   exsr      Rtv_MsgTxt

    C                   return
     *******************************************************************
     * Retreive Message Text visa API
     *******************************************************************

    C     Rtv_MsgTxt    begsr

     * Load API parameter fields...
    C                   eval      a_MsgInf    = *BLANKS
    C                   eval      a_MsgInfLen = 4000
    C                   eval      a_MsgId     = rm_MsgId
    C                   eval      a_Format    = 'RTVM0300'
    C                   eval      a_RplDta    = rm_RplDta
    C                   eval      a_RplDtaLen = 0040
    C                   eval      a_SubValues = '*YES'
    C                   eval      a_CtlChar   = '*YES'
    C                   eval      a_ErrCde    = 0
    C                   eval      a_RtvOpt    = '*MSGID'
    C                   eval      a_CCSID     = 0
    C                   eval      a_RplCCSID  = 0

     * Retreive message text...
    C                   callp(e)  QMHRTVM(a_MsgInf:
    C                                     a_MsgInfLen:
    C                                     a_Format:
    C                                     a_MsgId:
    C                                     a_FullMsgf:
    C                                     a_RplDta:
    C                                     a_RplDtaLen:
    C                                     a_SubValues:
    C                                     a_CtlChar:
    C                                     a_ErrCde:
    C                                     a_RtvOpt:
    C                                     a_CCSID:
    C                                     a_RplCCSID)

     * No error, then load return variables...
    C                   if        not %error
    C                   eval      a_MsgTxt =
    C                             %SUBST(a_Data:a_MsgOffSet+1:a_MsgLen)
    C                   eval      rm_MsgTxt = a_MsgTxt
    C                   eval      a_HlpTxt =
    C                             %SUBST(a_Data:a_HlpOffSet+1:a_HlpLen)
    C                   eval      rm_HlpTxt = a_HlpTxt
    C                   eval      rm_Rtcd = *blanks

* Else set error code...
C else
* error handling here - you could put something like the literal below:
C eval rm_MsgTxt = '*** NO TEXT FOUND ***'
C endif

    C                   endsr

   ??*******************************************************************

Simply compile both programs and call program 1 - name it what you wish.

Good luck!

Larry Ducie



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