Hi. I can't configure it with dev, but I already know what to do to compile and build Qt api's (thanks to Marcel ;-)). You have to add 3 environment variables to users variables in start->control panel->system->advanced->environment variables and you add QTDIR with location of your Qt installation (now I'm in school, so I don't remember these 2 left, but I will add them in home) and you create files like in normal project (in dev) but you don't compile it, but you do what's described in Qt Assistant->Qmake->(getting started or something like that)
(Once more-thanks to Marcel )