Finds a Node in a tree.
| this |
the root Node of the tree to search |
| order |
the order in which nodes are visited - g_in_order, g_pre_order, g_post_order, or g_level_order |
| flags |
which types of children are to be searched, one of g_traverse_all, g_traverse_leaves and g_traverse_non_leaves |
| data |
the data to find |
|
the found Node, or null if the data is not found |