pub unsafe extern "C" fn gtk_tree_sortable_get_sort_column_id(
sortable: *mut GtkTreeSortable,
sort_column_id: *mut c_int,
order: *mut GtkSortType,
) -> gboolean
pub unsafe extern "C" fn gtk_tree_sortable_get_sort_column_id(
sortable: *mut GtkTreeSortable,
sort_column_id: *mut c_int,
order: *mut GtkSortType,
) -> gboolean