+void ghb_error_dialog(
+ GtkMessageType type, const gchar *message, const gchar *cancel);
+void ghb_init_dep_map(void);
+void ghb_cancel_encode(signal_user_data_t *ud, const gchar *extra_msg);
+gboolean ghb_cancel_encode2(signal_user_data_t *ud, const gchar *extra_msg);
+GValue* ghb_start_next_job(signal_user_data_t *ud, gboolean find_first);
+void ghb_check_dependency(
+ signal_user_data_t *ud, GtkWidget *widget, const gchar *alt_name);
+void ghb_do_scan( signal_user_data_t *ud, const gchar *filename,
+ gint titlenum, gboolean force);
+void ghb_log(gchar *log, ...);
+gpointer ghb_check_update(signal_user_data_t *ud);
+void ghb_uninhibit_gsm(void);
+void ghb_inhibit_gsm(signal_user_data_t *ud);
+#if defined(_WIN32)
+void wm_drive_changed(MSG *msg, signal_user_data_t *ud);
+#endif
+gpointer ghb_cache_volnames(signal_user_data_t *ud);
+void ghb_volname_cache_init(void);
+void ghb_update_destination_extension(signal_user_data_t *ud);
+void ghb_update_pending(signal_user_data_t *ud);