Re: Struggling with API QDFRTVFD

Bryan,
I do not have any problem understanding the type of field.

First I have a loop on all formats - the structures called QDFARFTE.
When "inside" the format, I have a loop on all fields - the structure QDFFFINF.
Exact as you say - I go inside this structure and for every field
retrieve some data.

Output from my program for a non-hidden field looks like this:

         Field nr. 4
Field name is      ZLCLC
Field position is 3 36
Output field
Output buffer displacement is 26
Program length is 3
Field data type is 0

(I was too lazy to "decode" data type, 0 stands for Alpha.)


But with hidden fields (attribute 0x06) field name is filled with
blanks, so to generate a "readable" input I had to make it like this:

        if (strlen(rtrim(FldName->WDFFNAM, 10)) > 0)
          printf("Field name is %10.10s\n", FldName->WDFFNAM) ;
        else
          printf("Field name is <empty>\n", FldName->WDFFNAM) ;

And some hidden field looks like this:

         Field nr. 8
Field name is <empty>
Field position is 0 0
Hidden field
Input buffer displacement is 36
Output buffer displacement is 36
Program length is 7
Field data type is 7

This field type is 0x07 that is signed decimal.

However - obviously - hidden fields have names!




On Mon, Aug 18, 2014 at 7:08 PM, Bryan Dietz <[email protected]> wrote:
> First I could not even attempt the coding in "C", but reading the manuals I
> searched the following page for "hidden":
>
> http://www-01.ibm.com/support/knowledgecenter/ssw_ibm_i_53/apis/qdfrtvfd.htm
>
>
>
> Field Header Section (QDFFFINF)
>
> Offset  Bit     Type    Variable Name
> Dec     Hex
> 2       2       CHAR(1) WDFFFIOA
>
> Field attribute. X'01'  indicates Constant (see structure QDFFFCON, Constant
> Field Header Table (QDFFFCON)), X'02' indicates Output (O), X'03' indicates
> Message (M), X'04' indicates Input (I), X'05' indicates Both (B), X'06'
> indicates Hidden (H), and X'07' indicates Program to System (P).
>
>
> Maybe that would help you find the type of field.
>
>
>
> Jevgeni Astanovski said the following on Mon, 8/18/2014 9:07 AM:
>>
>> I used this program as a starting point and successfully retrieved
>> ALMOST everything.
>> I needed the following:
>> Format name, field name, field I/O attribute (Input, Output, Both,
>> Hidden), field type and field length.
>> As wrote earlier my failure was with hidden fields.
>> I found one place where hidden fields names could be retrieved and
>> another place where I could find (probably) these fields necessary
>> attributes - but without field names!
>> Names where available for all but hidden....
>>
>>
>>
>> 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
>>>>
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