Flush stdout in DrScheme?

I can do it in Java, Python, Has开发者_如何学编程kell... how do you do it in DrScheme? A customary google search didn't yield the answer.

I know this is MIT Scheme, not DrScheme, but have you tried flush-output?

If you use the R6RS language, you can use flush-output-port (PLT docs). It's also specified in the SRFI-82.