But in <pre> blocks (which make the code boxes in the help files), the Markdown formatter is bypassed, because 1.) you never want to format the text of code anyway and 2.) you would have to escape all the other formatting chars too, which could be quite a hassle.Markdown may also include html. Note that the special html characters <, > and & must therefore be 'escaped' using a backslash, the markdown escape character. For example, to insert a literal < into your markdown, you should use \<.
Note that OnUpdate is only called if SetUpdateRate has been called to start the update timer. Otherwise, your application will receive OnRender calls only.