I did get this working in the end, but don't think I have an example. I could probably delve into the old program and have a look, unless the other guy replies with his link.
My finished game is here https://www.scirra.com/arcade/strategy-games/korelos-34
Doesn't work for me, I still get a white screen, but apparently it works for others. Fly out a bit and get some enemies to fire at you and you should see that they're fairly accurate, although everything is moving so they pretty much do a 'rough guess' I think.