From: Andrew Apted <ajapted@netspace.net.au>
  To  : ggi-develop@eskimo.com
  Date: Fri, 11 Sep 1998 16:48:12 +1000

Re: SYNC mode should go

Marcus writes:

>  The screen is not guaranteed to be updated until you call ggiUnlock()
>  
>  For apps that only access the framebuffer ggiUnlock(vis);ggiLock(vis);
>  will have the same effect as ggiFlush(vis); currently does. Apps that
>  mixes accel/direct access will call the functions as apropriate.
>  Apps that don't hit the DirectBuffer at all should call ggiFlush()
>  to flush the accel queue, but they could call ggiLock();ggiUnlock()
>  to get the same effect.

Hmmm, sounds a bit fuzzy to me.  Are you just saying that ggiUnlock()
does an implicit ggiFlush() ?

Cheers,
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  Andrew Apted   <andrew@ggi-project.org>       \/