Re: is there a different between write(1: %addr(data): len)and 'QtmhWrStout'

["Lim Hock-Chai" <Lim.Hock-Chai@xxxxxxxxxxxxxxx>]

That clears me up.  Thank you Scott.  I'll go with QtmhWrStout. 



"Scott Klement" <rpg400-l@xxxxxxxxxxxxxxxx> wrote in message
news:<mailman.1604.1252521839.1811.rpg400-l@xxxxxxxxxxxx>...
> hi Lim,
>
> Not in all cases.
>
> QtmhWrStout always writes to stdout.  write(1: ....) always writes to 
> descriptor 1.  But they aren't always the same thing.
>
> If I understand correctly, the original implementation of C on OS/400 
> didn't have descriptors.  So stdin, stdout, stderr were not associated

> with a particular file descriptor.
>
> Later, when descriptor support was added, IBM had to deal with the
fact 
> that some people expected 0,1,2 to be mapped to stdin,stdout,stderr 
> (because that's how Unix works).  So they invented an environment 
> variable, QIBM_USE_DESCRIPTOR_STDIO that controls this.
>
> Furthermore, 0,1,2 always match stdin, stdout, stderr when you are in 
> QShell or PASE.  I believe they also do when you are communicating
with 
> the HTTP server (i.e. CGI programming)
>
> But there are situations where they don't match, such as in the native

> ILE environment (interactive or batch job) or when spawning a child
job 
> manually via the spawn() API and mapping pipes to descriptors 0,1,2,
or 
> when starting Java directly from RPG.  In those cases, you have to set

> the QIBM_USE_DESCRIPTOR_STDIO variable...
>
>
>
> hockchai Lim wrote:
> > is it correct for me to assume that write() (using handle ID of 1)
and 
> > QtmhWrStout essentially does the same thing of writing the data to
stdout?
> > thanks