+struct dictionary;
+
+struct dict_callbacks
+ {
+ void (*var_added) (struct dictionary *, int, void *);
+ void (*var_deleted) (struct dictionary *, int, void *);
+ void (*var_changed) (struct dictionary *, int, void *);
+ void (*weight_changed) (struct dictionary *, int, void *);
+ void (*filter_changed) (struct dictionary *, int, void *);
+ void (*split_changed) (struct dictionary *, void *);
+ };
+
+