Qt is cross platform. The difference is that there are UI rendering (say, scaling) behaviors the native toolchains use Qt does not. It comes as close as possibl

Qt is cross platform. The difference is that there are UI rendering (say, scaling) behaviors the native toolchains use Qt does not. It comes as close as possible within its widget layout engine it can get away with to native on every platform it supports (which when you consider thats everything from Android to Windows is a feat) but is never a perfect reproduction. Its not something that is going to be "work" for you - you just aren't going to fix it. You get a portable codebase without any of the if WIN else OSX soup, but the experience will never be perfectly native. Though nowadays I don't even know what native Windows means anymore, is it that ribbon crap, or the metro thing? Because Qt apps just use oldschool Windows Forms style menubars / buttons / etc. You can just go test it yourself, go run VLC and see how "native" it feels. Its using Qt everywhere except Android. But if you want to develop cross platform native looking software... Qt is absolutely it. Only option. And it gets better each release. Otherwise you are going the route of the Unity guys, rewriting your program for every single system.