Re: Struggling with API QDFRTVFD

Jevgeni Astanovski <[email protected]>
Newsgroups gmane.comp.lang.as400.c
Message-ID <CAJuVQr3Bh_Lajw8q+5LaL9jG+EmPdhjcArhYiLwYHpypAOm16Q@mail.gmail.com>
On Tue, Aug 12, 2014 at 11:36 PM, Bryan Dietz <[email protected]> wrote:
>
>>
>>
>> I just did a Google search "QDFRTVFD site:ibm.com"
>>
>> which returned a "C" example for the API
>> "This document contains an example of how to retrieving the Row/Column
>> of a Field Using the QDFRTVFD API."
>>
>> http://www-01.ibm.com/support/docview.wss?uid=nas8N1017486
>>
>>
>>
>>
>> bryan
>>
>>
>>
>> Frank Kolmann said the following on Wed, 8/6/2014 7:12 AM:
>>>
>>> Hi Jevgeni
>>>
>>> How are things, hope all is well.
>>> Did you manage to get the API working?
>>>
>>> I have a RPG version coded here.
>>> http://wiki.midrange.com/index.php/QDFRTVFD
>>> The API is VERY BIG and my program only gets the basic info of
>>> Fields/Constants and attributes.
>>> But I am not doing so well in converting it to C.
>>>
>>> Perhaps you have some suggestions.
>>>
>>>
>>> Regards
>>> Frank
>>>
>>>
>>>> From: Jevgeni Astanovski <Jevgeni.Astanovski@xxxxxxxxxxxxx>
>>>> Date: Fri, 24 Jan 2014 15:01:34 +0000
>>>>
>>>> Thought that "with a little help" from Mark and Carsten I solved my
>>>
>>> problem.
>>>>
>>>> How mistaken I've been...
>>>> I only need a list of fields with field name, I/O attribute, field type
>>>
>>> and length.
>>>>
>>>>
>>>> Found field names in QDFFNTB structure. Very good. All other necessary
>>>
>>> data was also available starting from there.
>>>>
>>>> But then I found out, that hidden fields' names are missing in QDFFNTB
>>>
>>> structure at all! Field is mentioned, I can retrieve all attributes - but
>>> not the name...
>>>>
>>>>
>>>> Continued searching - as Carsten advised - went to QDFWFLEI and from
>>>> there
>>>
>>> to QDFWRCDI and QDFFNTBL.
>>>>
>>>> Very good again, now all names available, including hindden, also field
>>>
>>> lengths.
>>>>
>>>> But how to get data type and I/O? There is an index to QDFFFITB, but
>>>> I saw
>>>
>>> that in my DSPF with 7 formats these indexes repeate. So they are unique
>>> inside one format only. And I failed to find reference to format names in
>>> Where-Used part of the puzzle...
>>>>
>>>> The only idea I have by now is to rely on formats order and assume that
>>>
>>> order of records in "Where-used" section matches exactly order of formats
>>> in Record format table (QDFARFTE)
>>>>
>>>>
>>>> Or I am missing something again?
>
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