Removes all keys and values from the GTree and decreases its
reference count by one. If keys and/or values are dynamically
allocated, you should either free them first or create the GTree
using g_tree_new_full(). In the latter case the destroy functions
you supplied will be called on all keys and values before destroying
the GTree
Removes all keys and values from the GTree and decreases its reference count by one. If keys and/or values are dynamically allocated, you should either free them first or create the GTree using g_tree_new_full(). In the latter case the destroy functions you supplied will be called on all keys and values before destroying the GTree