How to call the Plot method?

[supernatural]

It can but I can't provide that graphics object to it if I call it directly (because I don't have it).

Then from the signature of the Plot() method, your custom plot must have a graphics input.

Why do you think that a copy of that method, with the same signature, cannot access a graphics object?

[koganam]

That's it! This is what I was looking for. Thanks a lot Koganam. What a relief. Very useful this ChartControl, too bad this is undocumented.

Just as long as we remember that they MIGHT break it in a subsequent release, which, I am sure is part of the reason that it is undocumented and unsupported.

Given the stability of their framework, this is very unlikely to be broken in the future, but one never knows. That is why I always go on these convoluted journeys to use supported methods, and only go the unsupported route after I throw up my hands in disgust at my own poor skills.