How do I wait for vertical retrace?

[Nicolas George]

L'octidi 18 floréal, an CCXVI, Johan Walles a écrit :
> I don't care about vertical retrace in itself, waiting for vertical
> retrace would only be a way for me to achieve flicker-free animation
> in a 2D application.

DOUBLE-BUFFER is no good for that: when used for continuous animation (such
as video), it causes exactly as much tearing as a simple bitmap copy. At
least it was true in November 2006.

Regards,

-- 
  Nicolas George
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