If you look at toolkits like MFC or OWL, you will most likely notice they aren't the easiest ones to manage. Okay, the API wrappers make life considerably easier if you're used to plain c, but you still have to have lots of knowledge of Windows to get things going. A norwegian company had enough of this and decided to make their own API wrapper. They named it Qt.

Qt is revolutionairy in a way, because it offers a much more simple interface than any other wrapper does. Even though the wrapper makes use of advanced object-techniques, it looks like you are coding for dos. And what's easier than writing for dos? An example ofcourse says more than a thousand words, so here's the example. The following program writes the classic "Hello World" on a pushbutton:

 #include <qapplication.h>
 #include <qpushbutton.h>

int main( int argc, char **argv )
{
    QApplication a( argc, argv );
    QPushButton hello( "Hello world!" );
    hello.resize( 100, 30 );
    a.setMainWidget( &hello );
    hello.show();
    return a.exec();
}

The best thing about Qt is the way it embeds cross platform functionality. Without any modification, you can compile your code on X11, Motif or Windows platforms. The only thing you have to change during compilation is the library you use to build your project. Every operating system (not compiler) needs it's own set of libraries.