Saving a screenshot 'every few milliseconds' isn't a good idea. It'll give your HD a right good thrashing.
However, you can save a screenshot at anytime by using the SaveBuffer command.
I'm not sure what you're trying to do, TBH. If you want to save a movie of your game running, you can use something like FRAPS.
However, you can save a screenshot at anytime by using the SaveBuffer command.
I'm not sure what you're trying to do, TBH. If you want to save a movie of your game running, you can use something like FRAPS.