On Fri, 2003-09-12 at 11:07, Ronald Bultje wrote: > Hi, > > I want to make a GInterface hierarchy, where I have a type GstInterface > that implements some functions to make interfaces on a per-instance > basis, and some actual interfaces, based on GstInterface. > > However, after having coded quite a bit, I get this error: > (lt-gst-mixer:29879): GLib-GObject-WARNING **: cannot derive `GstMixer' > from non-fundamental parent type `GstInterface' > Which seems to indicate that I can't make multi-derivations of > GInterface. Why is this, is it fixable (either in glib or - with a > workaround - in my app), or should I use a different approach? The closest analogy to inheritance for interfaces is prerequisites. You can say "Every object that implements GstMixer must also implement GstInterface". Regards, Owen _______________________________________________ gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list
