[C++] How to be notified of changes to "ORTHO"

I’m trying to respond to a change in the ORTHO setting. Unfortunately, CRhinoEventWatcher::OnAppSettingsChanged is not responding to that change.

How can I be notified of a change in ORTHO setting?

Seems to work here. We are talking about enabling or disabling Ortho, as presented on the Modeling Aids page in the Options dialog, correct?

No, sorry for being unclear. What I mean is when the user clicks the word ORTHO in the bottom of the screen (toggles between bold and normal font).

Ok, I got it. I’ll add something on the to-do list to get this tuned up.