Re: Using CALLB with a Service Program

Brad wrote:

>CALLB has nothing to do with bind by copy or bind by reference.  It is
>simply calling a bound procedure. 
>
>Bind by copy and bind by reference refer to creation of an RPG program.
>Since you are using the Qtmhxxxx proceudres from the QTMHCGI service
>program, when you compile your program you will have to reference the
>service program in the CRTBNDRPG program directly or through a binding
>directory.  You are binding by reference, here.  
>
>The Qtmhxxxx APIs are proceudres written in C and are in a service program
>QTMHCGI in library QTCP.

Dennis wrote:

>No, that's close but not quite right.  CALLB can also be bound by
>reference, and that's why your program will function correctly.  The
>service program is "activated" when your program is called, and the bind
>is performed at that point.

I've used bound programs in the past, specifically to break up larger
programs where chunks of code were replicated. This has worked well
to reduce redundant code without loosing any performance or function.
I've also used procedures with service programs. I just never thought
about putting a "normal" *module in a service program and calling it with
a CALLB. The light has come on. I can already think of one application
that I would have done differently because of this.

Thanks!  Joe Teff

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