Quite a while back Roonius posted a simple Plot Override indicator that showed 12 static lines printed into the right margin using Plot Override. (I can't find that explicit post again, sorry). I understand how the Plot Override is working but I can't figure out how it is actually invoked.
There is an OnBarUpdate() but it has no statements in it. There is an Initialize where the pens and brushes are defined. But that's it. The lines are made to show by selecting a user parameter to "true" and it all works beautifully, But I don't see how the Plot is "called".
Can anyone shed any light on this, and/or point me in the direction of the C# explanation of this behaviour?
thanks in advance
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