You can check out this addon:
It is intended to be maintained which also means that i work on it just from time to time. If you see any issues please let me know and I will try to check them out. I have been very happy with the results so far. So i hope it can help others too.
IMHO working in Qt for long term projects is by far the best choice I made. The documentation is excellent and i think nowadays it is a mature library. It also proposes good coding patterns... so I think it's a good move for big projects, maybe not for cool looking prototypes.
oh btw. I use Visual Studio. I don't use Qt creator. If that is what you are looking for I know that Qt creator is supposed to be supported in oF, but I prefer VS debugging tools.