Sets iter to point to the first child of parent.

If parent has no children, FALSE is returned and iter is set to be invalid. parent will remain a valid node after this function has been called.

If parent is NULL returns the first node, equivalent to gtk_tree_model_get_iter_first (tree_model, iter);

interface TreeModelIF


iter TreeIter

the new [GtkTreeIter-struct|GtkTreeIter-struct] to be set to the child

parent TreeIter

the [GtkTreeIter-struct|GtkTreeIter-struct], or NULL

Return Value

Type: bool

TRUE, if iter has been set to the first child