In one of my classes, we used Ruby and Gtk, but some issues popped up. The most obvious is using a block to do GUI update stuff and the like, from another thread. Things die. Puppies are killed.
I found this post on Ruby Forum which fixed the problem.
Relevant code.
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Basically, you call the Gtk.init_thread_protect method first when you start things up, then, whenever you need to do GUI update stuff, just wrap it in a Gtk.thread_protect {} block. Voila! It works. No more crashes. In looking at this code again now, some things could be made more Rubyesque, but we’ll go with it.
My version with minor changes:
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