> On 8 Sep 2015, at 13:55, Ricardo Biehl <rbpoficial at gmail.com> wrote: > > I think you should return 'GDK_FILTER_REMOVE'. Actually, it seems that if I return GDK_FILTER_CONTINUE, it works correctly, but if I return GDK_FILTER_REMOVE, the preferences window freezes as before. Why is this? Regards adlo