-TODO
-
-OnMenuCommand, OnSize, OnActivate, OnPaint, others?? can all be prefixed with Old (e.g. OldOnMenuCommand)
-and will work as before. You are encouraged to convert your code to the new forms, but
-this will allow you to get your applications up and running a little more quickly.
-
-OnClose can be used as-is without an 'Old' prefix, but officially the OnCloseWindow event table handler should be
-used instead.