Gtk marshallers

["William D. Tallman" <wtallman olypen com>]

This is a plea for someone to do a bit of mentoring.  Here's the
situation:

I've got a fairly good-sized C application that I've developed for a
specific purpose, and now it looks like it could easily be extended to a
class of such purposes.  This application works, as do many, on the CLI
with a boat-load of applicable arguments.  It produces textual output
that can be used in a variety of ways.

I can cobble up code in gtk to present nice GUI interfaces that will
create an argument string to send to the C code.  I can write gtk code
that can present the output in a suitable variety of ways.  What I
cannot seem to do is wrap my head around how to get the gtk code to
communicate with the C code.  I've read the gtk docs on signal
marshallers, and it's just not making sense to me.

I'm still using gtk-1.2, with the notion that I probably should get that
up and running, and then rewrite however necessary for each newer
edition of gtk until I've got code for the latest.

Would someone who really knows this stuff be so kind as to mentor me off
list on this.  I figure off list is better, as I would guess that 1.2 is
no longer relevant to the readers of this list.

Thanks all for reading,

Bill Tallman