gtk/tree_view_column.go
func (v *TreeViewColumn) SetSortOrder(order SortType) {
	C.gtk_tree_view_column_set_sort_order(v.native(), C.GtkSortType(order))
}
func (v *TreeViewColumn) SetSortOrder(order SortType) {
	C.gtk_tree_view_column_set_sort_order(v.native(), C.GtkSortType(order))
}
// GtkWidget * 	gtk_tree_view_column_get_button ()
// void 	gtk_tree_view_column_set_alignment ()
// gfloat 	gtk_tree_view_column_get_alignment ()
// void 	gtk_tree_view_column_set_sort_order ()