@sierdzio Thank you very much for the answer. I tried some tips, but unfortunately not all were applicable in my case, since let's say the same Q_OBJECT is missing in Qt microcontrollers. And in the examples that I'm looking at, it seems that there is no such thing (Q_OBJECT), which is why I ran into a problem, since everything works in the usual Qt for Desktop but not in Qt MCU

Thank you all ! It worked !!!!!

Yes the solution was TEMPLATE = lib !

@Wieland Wow you are just killing it today for me aren't you? Haha. I'll judge which is best for me a give it a roll.

Thanks a bunch (again)!

EDIT:

I ended up going for the event filter route and it works beautifully. Other than the exact syntax the approach also feels pretty intuitive which I like.

@jsulm
Yes. I tried before your post and it works!

Thank you all...

Thanks for your reply and help!

@slilly said:

Can QTimer be called from a normal C++ main and not a QThread or a main using a QCoreApplication?

No. If you want to use QTimer, then you need QCoreApplication::exec() or QThread::exec().

Finally, the best/clean way I found to deal with my requirement was this:

Inside the main.cpp and before I start my service, I make all the verifications I need... if something goes wrong, then I call "return 0;" and that's it, a clean exit. If everything goes well, then I start my service. End of the story.

Thank you for your advices guys! :)

@Chris-Kawa, you got me wrong i guess, the problem is not stylesheet inheritance, it's about the target widget itself NOT getting the stylesheet, instead that only passing style to children, naming him doesn't affect the result too.