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Pointers in C are passed by value. Do the same thing in RPG IV, and it'll work. example: D OptinP * value IMHO, this is an awkward way to do it. Instead of passing a pointer, you should be passing a field of the correct type by reference. This allows the compiler to do much better validity checking. example: D PrintTransform PR extproc('QwpzHostPrintTransform') D ProcOptP 10I 0 D OptinP 32766A options(*varsize) D LoptInP 10I 0 ...etc.... On Tue, 13 Mar 2001 B.Quindt@zapf-bayreuth.de wrote: > Hallo, > > we have a example Program witten in C in this example the API > QwpzHostPrintTransform was called. > All the Parameters passed from C Programm were Pointers. > > We want to use the API in RPGIV Programm, is there a way to pass pointers > in the same way like the > C Programm does ? > > Example C Code > > QwpzHostPrintTransform( procoptP, > (Qwpz_HPT_Opt_SpecIn_t *)(&OPT_Spec_In), > LOptInP, > SplDataP, > SplDataLP, > (OptOut_t *)(&OPT_Spec_Out), > LOptOutP, > LOptOutAP, > TranDataP, > TranDataLP, > TranDataAP, > (char*)(&errcode) ); > > We tried to define the following in RPGIV but it doesn't work. > > D PrintTransform PR extproc('QwpzHostPrintTransform') > D ProcOptP * > D OptinP * > D LoptInP * > D SplDataP * > D SplDataLP * > D OptOutP * > D LoptOutP * > D LoptOutAP * > D TranDataP * > D TranDataLP * > D TranDataAP * > D APIError 272 options( *NoPass ) > > > > Thank you > +--- | This is the RPG/400 Mailing List! | To submit a new message, send your mail to RPG400-L@midrange.com. | To subscribe to this list send email to RPG400-L-SUB@midrange.com. | To unsubscribe from this list send email to RPG400-L-UNSUB@midrange.com. | Questions should be directed to the list owner/operator: david@midrange.com +---
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