Function gtk4_sys::gtk_tree_sortable_set_sort_func

pub unsafe extern "C" fn gtk_tree_sortable_set_sort_func(
    sortable: *mut GtkTreeSortable,
    sort_column_id: c_int,
    sort_func: GtkTreeIterCompareFunc,
    user_data: gpointer,
    destroy: GDestroyNotify
)