On Aug 4, 2014, at 9:31 AM, Matthias Felleisen <matth...@ccs.neu.edu> wrote:
> #lang racket/gui
>
> (require 2htdp/universe 2htdp/image)
>
> (define (render ws) ws)
>
> (define (halt ws) #t)
>
> (big-bang (rectangle 600 400 'solid 'gold)
> (to-draw render)
> (stop-when halt render))
>
> (yield (make-semaphore))
>
Thanks! That sorts it for me. And it signifies a gap in my understanding of
event handling and threads that I’ll have to remedy. :)
—Kevin
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