QT Library:
do you know that there exist a library called Qt
it is fully object oriented built by c++ language and it is cross-platform.
it is easer than MFC it is stronger than MFC you can make cross-platform applications with it.
it is used to build big application and famous like
1- google earth
2- adobe photoshop element
3- KDE for linux
4- opera browser
5- skype
moreover it is open source you must see it.
http://trolltech.com/products/qt