Thanks to Milosz Derezynski for his response. While researching how I should follow his approach, I was contacted by one of the GIMP developers (Michael Natterer) who had produced a patch which provided a very elegant solution. If I understand Mr Natterer's solution correctly, it differs from that proposed by Mr Derezynski's in that it forgoes any testing of whether the give type is supported: i.e., if ANYTHING is being dragged then the hovered-over tab will be raised. This approach seems quite logical and its behavior is very intuitive. Thanks to all. _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list