[racket] text-field% locking

From: Ivanyi Peter (pivanyi at freemail.hu)
Date: Sun Jun 5 15:33:32 EDT 2011

> The short answer is that editors aren't thread-safe in 
> any simple sense. That section of the docs provides some 
> information on working with multiple threads, but please 
> ask again if I've misunderstood or if the docs don't 
> provide enough help.

Oh yes.
I have put a begin-edit-sequence and an end-edit-sequence
around the insert and it seems to solve the problem.

Thank you very much.

Peter Ivanyi

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