Calls the given function for each of the key/value pairs in the
The function is passed the key and value of each pair, and the given
data parameter. The tree is traversed in sorted order.
The tree may not be modified while iterating over it (you can’t
add/remove items). To remove all items matching a predicate, you need
to add each item to a list in your
GTraverseFunc as you walk over
the tree, then walk the list and remove each item.
This method is not directly available to language bindings.
The function to call for each node visited. If this function returns
TRUE, the traversal is stopped.
User data to pass to the function.
The argument can be
The data is owned by the caller of the function.