On Mon, 2007-12-10 at 23:52 +0800, Diqing Zhong wrote: > g_object_get(G_OBJECT(plugin), "my-info", &info, NULL); Hello! Please address such questions in the future to a glib mailing list. But before you do so, have a look at GObject's documentation, specifically g_object_[get,set]_data. Regards Lutz