How to Show GUI and work on background

[roseicollis]

You can only derive from one QObject based class.

Then? How can I derive from both?

QProcess is a Qt class that allows you to run other programs/executables.
So one parallel processing approach is to have a task program that can be blocking/sequential and have the main program run it via QProcess.

Do you mean that I have to make 2 projects and then unify them with a process?? If yes can you put the code or the idea more or less of it? I can't understand how can the code be.
Sorry for all, I'm really newbie with Qt and developing with threads/process/etc. I've been looking for some written examples to try to understand it more but can't find any for that, so could you please write it?

Thank you!