Problems controlling another program

[Sven Herzberg]

Hi,

I'm trying to create a front-end for a linux console application. My
problem is that the command line tool has to run the whole time while the
GUI is running. The GUI and the command line tool shall permanently
exchange data with each other. I tried with popen2 and I didn't succeed.
If you can help me, send me some info, please.

Thanks

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sven