Porting from GTK
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The LXDE project has a good guide to help porting applications from GTK to Qt: http://wiki.lxde.org/en/Migrate_from_GTK_to_Qt
En Ar Bg De El Es Fa Fi Fr Hi Hu It Ja Kn Ko Ms Nl Pl Pt Ru Sq Th Tr Uk Zh
The LXDE project has a good guide to help porting applications from GTK to Qt: http://wiki.lxde.org/en/Migrate_from_GTK_to_Qt