unbind
Explicitly releases the binding between the source and the target property expressed by @binding.
This function will release the reference that is being held on the @binding instance if the binding is still bound; if you want to hold on to the #GBinding instance after calling g_binding_unbind(), you will need to hold a reference to it.
Note however that this function does not take ownership of @binding, it only unrefs the reference that was initially created by g_object_bind_property() and is owned by the binding.
Since
2.38