On Sat, Feb 17, 2024 at 11:15 PM Frederick Virchanza Gotham wrote:
>
> Never mind, that was a half-baked idea and doesn't account for how
> you'd convert an IKeyboard* to an IDevice*.
>
> I'll think it out a bit further and post again.


I've put more thought into the layout of the vtables -- see attached PDF file.

This revised layout will allow you to add more virtual methods to
IDevice without breaking the ABI for any derived classes such as
IKeyboard.