Specifies the type of function passed to g_tree_foreach_node(). It is passed each node, together with the user_data parameter passed to g_tree_foreach_node(). If the function returns %TRUE, the traversal is stopped.
user_data
a #GTreeNode
user data passed to g_tree_foreach_node()
Specifies the type of function passed to g_tree_foreach_node(). It is passed each node, together with the
user_dataparameter passed to g_tree_foreach_node(). If the function returns %TRUE, the traversal is stopped.