Thank you Alex, George, and Matthew for the diagnosis and excellent suggestions! The explanations around Windows handles and GC make perfect sense, even though it's been literally decades since I've done any direct work with Windows' graphics subsystem.
Now I'm off to do some more coding and put this new information to work ... maybe I can even package some of this into a re-usable grid class of some sort. -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
