gint (* get_marks) (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars);
};
-GtkType gtk_custom_ruler_get_type (void);
+GType gtk_custom_ruler_get_type (void);
void gtk_custom_ruler_set_metric (GtkCustomRuler *ruler, GtkCustomMetric *metric);
void gtk_custom_ruler_set_range (GtkCustomRuler *ruler,
gdouble lower,