Guys, thanks for your kind comments. I did get great satisfaction from creating the ball-rolling graphics and also the requirements for correctly setting the odds for all the different bets. I could have improved the graphics - the wheel has its reflections rotating which is unrealistic and the graphics for my tokens are very crude. Normally, I would tinker for much longer with a program before putting it here to improve such aspects, and Tempo points out other things which I might have done.
But as I said in the User Manual, I myself found playing the game very uninteresting - after a few rounds checking that the ball, tokens and bets all fuction as expected, I'd exhausted my interest.