Not completely, don't underestimate how hard it is to write a cross platform UI that runs on Windows, OSX and Linux.
Starting from a web framework not only gives you portability but also a common UI language(that may diverge a bit from native app conventions but that's a tradeoff you need to weigh).
I say this as a die-hard C++/native dev. I've done wxWidgets, QT and a bunch of others and it's never a trivial thing to do.