[haiku-appserver] Re: Overlay support

Hi, about that engine count hook for overlay:

It must be that this should be used by app_Server  to find out if a new 
mode will support overlay or not: so it can inform the app using 
overlay?
I can imagine I should check the mode, and (VIA example) return zero if 
the driver can't do it because of RAM constraints? (size, speed)
 
Just a thought.

Note that this hook is never called yet though.

Axel?

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