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  2. RPG400-L
  3. December 2003

Re: Host field value is changed after during a CALL

Pascal Bellerose wrote:
> ...
> If the user entered Option 2, I must show format "EC02WS".  So @ECRAN is 
> changed from 01 to 02.  But then I call "QRCVDTAQ" to retrieve the key values 
> so I can fill "EC02WS".  During that call, @ECRAN is set back to 01 wihtout 
> any reason.
> I know this behavior is not supposed to be.  I just don't why it is now.
> ...

The receiver parameter for QRCVDTAQ has to be at least as long as the
maximum entry length of the data queue. (MAXLEN parameter on the CRTDTAQ
command.)

QRCVDTAQ has a length parameter (third or fifth parameter) but that's
not for telling the API how long your buffer is, it's for the API to
tell you how long the entry is.  (There's another parameter way down in
the optional parameters where you can tell the API how long your
receiver is.)

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