ibm midrange - AS400 RPGLE Defining a display file in a module -

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i have been reading on creating modules , service programs in ile, can't find on defining display window (prompt screen) inside module. have tried following, keep getting error recno parameter (rrn here) not defined (*rnf7004). idea doing wrong....or can more info...

    h nomain                                                     fwdwfacv   cf   e             workstn                        f                                     sfile(facsfl:rrn)      fzmfl01    if   e           k disk                             d/copy cussrcv6/qcpysrc,tools                                p wdwfac          b                   export                 dwdwfac           pi                                         dwfac                            2a                          dwfdesc                         20a   options(*nopass)       d rrn             s              3s 0 inz(0)                 d wkflag          s              1s 0                        /free

the rrn variable, attached display file, needs global (defined outside module).


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