exchanging data between different programs

[Andreas Schropp <schropp_andreas yahoo de>]

hello,

I wanted to write some GUI-application using
gtkmm-2.0 that acts somewhat similar than a
server application. So, there shall be the GUI
permitting the manipulation of different things
and a different part of code waiting on a string from
another program (non-GUI) to arrive.
I am quite a programming starter and I don't have
any clue how to implement something like that.
What to use? Signals, pipes, sockets??

Until now, my server always freezes the GUI ...

Thanks a lot in advance!!

Cheers
Andreas