I've recently posted that I had some problems with my firsts library that I'd written for my application so as I could have better possibilities to support it.

I have noticed that I can create QObject derived objects from my application (declarations along with definitions are held in my library) because debugger noticed me that this was impossible.

I know now that some things are impossible, some should be avoided etc., but I need some good source of knowledge (tutorials) to work with, to learn from, so if you were so kind, it would be absolutely helpful...