> This looks very promising
> Ideally, shouldn't this be using a modern MAME build rather than PinMAME? I thought
> MAME supported pin ROM sets nowadays.
> I assume current MAME can't emulate the dot matrix display yes?
No, MAME can do that with some of them IIRC.
However, MAME can't - and doesn't want to - imitate Visual PinMAME's COM-model DLL hackery.
MAME would need to come up with some new way to be controlled by an external engine like Visual Pinball and the like, and Visual Pinball would need to add support for this method. This method of being controlled would also have to be cross-platform - so, not Visual PinMAME's Windows-only method. This has been discussed in the past.