But it is dual license. http://www.qtsoftware.com/products/licensing 2009/5/29 Dag-Erling Smørgrav <des at des.no> > zhihang wang <zhihang.wang at gmail.com> writes: > > The main difference between my license and the QT license [...] > > Qt is distributed under the GPL. > > DES > -- > Dag-Erling Smørgrav - des at des.no > -- Best Regards zhihang wang