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The key to getting MVC correct is understanding what models are
stlab hosts modern, modular C++ algorithms and data structures.
When the controller requests a change in value, the boolean is updated, and the view is notified of the new state of the model. Contrast this with most UI frameworks where you have a checkbox widget from which you can query the value and you receive a notification when the value has changed. I conjecture that one of the reasons why MVC has been so screwed up is because, unlike in Smalltalk, writing something as simple as an observable boolean is a bit of a pain in a language like Pascal or C. You quickly get into object ownership and lifetime issues and how to write bind expressions.
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