Antwort: Re: RPGIV - Pointer Parameter API QwpzHostPrintTransform

[bmorris@xxxxxxxxxx]

>Date: Wed, 14 Mar 2001 11:11:43 +0100
>From: B.Quindt@zapf-bayreuth.de
>
>thank you, passing the fields with the correct type by reference worked
>fine,
>the only problem is. If the transformed data buffer returned from the API
>is greater than
>32767 Byte we get an CPF6DF9 - Buffer too small.....
>
>Has anybody a idea to handle this problem ?

The limit for character fields is 65535, not 32767, but that might
also be too small.

For that parameter, you might want to switch back to passing a pointer
by value.  Instead of declaring a field for the buffer, use ALLOC to
allocate data large enough for the buffer.

To handle the buffer data, you would use a based 65535A field and
gradually walk its basing pointer through the data.

D bufP           S            *
D workP          S            *
D workVar        S       65535A    based(bufP)
D totalHandled   S          10I 0

C         alloc       buflen       bufP
C         callp       ...

C         eval        totalHandled = 0
C         eval        lenHandled = 0
C         dow         lenHandled < returnedLen
C         eval        workP = bufP + totalHandled
C          ... handle some data in workVar
C         eval        totalHandled = totalHandled + whatever
C         enddo

C         dealloc                  bufP

Barbara Morris


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