Re: CL commands from within RPG

[rob@xxxxxxxxx]

It's QCMDEXC not QCMDEXEC.  I make that mistake a lot.

There are several ways of executing a command from within RPG.  All 
involve the use of API's.  Now, many people wrap these API's with 
prototypes and maybe even their own subprocedures to minimize complexity 
of some of the more flexible of the available api's.

You can search the api reference in infocenter, or the archives for the 
following:
QCMDEXC
system()
QCAPCMD

For true flexibility QCAPCMD wins hands down.
I started out with QCMDEXC and went over to system().  After seeing how 
QCMDEXC can get a little more information returned on an error condition 
by evaluating the Program Status Data Structure I went back to QCMDEXC.  I 
don't normally use QCAPCMD for situations where either of the other two 
will work.  But for intense situations like prompting the user for a 
command, have them fill in only the parameters you want them to, and then 
return the command back to the rpg for further analysis or storage I'll 
use QCAPCMD.  Like a menu system.

Maybe a re-evaluation on my part is in order.  Often a use of QCMDEXC 
gives me a generic error code in the PSDS like CPF0006-Errors occurred in 
command. and I have to use message handling api's to retrieve messages 
from the joblog to determine what the real error is.  I wonder if QCAPCMD 
would skip that BS and give me the message I really needed in the standard 
api error message structure.

Rob Berendt
-- 
Group Dekko Services, LLC
Dept 01.073
PO Box 2000
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





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Re: CL commands from within RPG






There isn't that I'm aware of. But the API QCMDEXEC is very easy to use.
Two parameters, the command and the command length.

Thanks,

Mark

Mark D. Walter
Senior Programmer/Analyst
CCX, Inc.
mwalter@xxxxxxxxxx
http://www.ccxinc.com


 
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Can someone tell me if there is a simple method of calling a CL command
from
within an RPG program without having to use API's?


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