BoundingBoxCallback : MulticastDelegate, ICloneable, ISerializable
      (ctor) BoundingBoxCallback( object object, IntPtr method )
      virtual IAsyncResult BeginInvoke( Mobile from, Map map, Point3D start, Point3D end, object state, AsyncCallback callback, object object )
      virtual void EndInvoke( IAsyncResult result )
      virtual void Invoke( Mobile from, Map map, Point3D start, Point3D end, object state )