You can mix MFC and Qt, however this is neither nice nor portable. There are tools from Trolltech for migrating MFC-Apps with Qt but I think you'll have to buy them. You can get a handle for a QWidget using http://doc.trolltech.com/4.1/qwidget.html#winId and set up your directx context there. So the solution is to make a Qt-App and let directx render into a QWidget.
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