if none is currently being used.
TreeView.getHadjustment
gtk.adjustment.Adjustment getHadjustment()Gets the #GtkAdjustment currently being used for the horizontal aspect.
Returns
A #GtkAdjustment object, or null
gtk.adjustment.Adjustment getHadjustment()Gets the #GtkAdjustment currently being used for the horizontal aspect.
if none is currently being used.