The TuioListener interface provides a simple callback infrastructure which is used by the TuioClient class
+ to dispatch TUIO events to all registered instances of classes that implement the TuioListener interface defined here.
The TuioPoint class on the one hand is a simple container and utility class to handle TUIO positions in general,
+ on the other hand the TuioPoint is the base class for the TuioCursor and TuioObject classes.