column ids.
TreeSortable.getSortColumnId
bool getSortColumnId(out int sortColumnId, out gtk.types.SortType order)Fills in sort_column_id and order with the current sort column and the order. It returns true unless the sort_column_id is [gtk.types.TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID] or [gtk.types.TREE_SORTABLE_UNSORTED_SORT_COLUMN_ID].
Parameters
sortColumnId | The sort column id to be filled in |
order | The #GtkSortType to be filled in |
Returns
true if the sort column is not one of the special sort