of the properties (other than value) change
Adjustment.changed
void changed()Emits a #GtkAdjustment::changed signal from the #GtkAdjustment. This is typically called by the owner of the #GtkAdjustment after it has changed any of the #GtkAdjustment properties other than the value.
Deprecated
GTK+ emits #GtkAdjustment::changed itself whenever any