Calls the @complete_interface_info function from the #GTypePluginClass of @plugin. There should be no need to use this function outside of the GObject type system itself.
the #GType of an instantiable type to which the interface is added
the #GType of the interface whose info is completed
the #GInterfaceInfo to fill in
See Implementation
Calls the @complete_interface_info function from the #GTypePluginClass of @plugin. There should be no need to use this function outside of the GObject type system itself.