Antwort: RE: API QDBRtvFD and DDM files / 2

Hello Jonathan,

as i mentioned in my posting, i use the 4. bit of the second byte.

Bit counting begins - as i read the documentation of the api - with zero.
But from the left. All other bit-status i check are correct if i interpret
them so.



Eduard Spanninger
STAMAG Stadlauer Malzfabrik GesmbH


midrange-l-bounces@xxxxxxxxxxxx schrieb am 22.08.2006 11:34:41:

Hi Eduard

The positioning in the returned data structure begins at 1.  You have to

add

1 to the offset shown in the documentation to get the correct starting
position, so the byte you're interested in is actually in position 69 and
not 68.

Bit counting usually begins with bit 0 as the right most bit of the byte,

so

bit 4 would actually be the first bit of the high end nybble which shows

as

"1" in your example.  Of course that doesn't mean that the IBM

documentation

does it that way so check you're picking up the correct byte first.

Hope it helps

Jonathan


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Eduard Spanninger
Sent: 22 August 2006 06:39
To: Midrange Systems Technical Discussion
Subject: API QDBRtvFD and DDM files / 2





I'm afraid, my first posting hasn't reached the forum. Therefore once

again

...


Hello, maybe (and hopefully) anyone can help me; searching the net didn't
gave a suitable answer.

It concerns reading file information for DDM files: i can't even decide
wheater a file is a DDM file or not.

Using DspFD a file has the following attributes:
   system: *lcl
   file type: device
   device type: DDM
and DDM attributs are shown.

So far, so good. But I'll get these information with API QDBRtvFD.

In format Qdb_Qdbfh, positions 68 to 69 (counting begins at zero) is

field

Qaaf2 (additional attribute flags); bit 4 (counting also begins at zero)

of

the second byte should by ON if it is the a DDM file. But this bit always

is

OFF: b'0001 0000'.

Where is the error?

Eduard Spanninger
STAMAG Stadlauer Malzfabrik GesmbH

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