Looks up a key in the GTree, returning the original key and the
associated value and a gboolean which is TRUE if the key was found. This
is useful if you need to free the memory allocated for the original key,
for example before calling g_tree_remove().
Looks up a key in the GTree, returning the original key and the associated value and a gboolean which is TRUE if the key was found. This is useful if you need to free the memory allocated for the original key, for example before calling g_tree_remove().