[EMAIL PROTECTED] (Gerd Knorr) writes:
> It is useful for these old overlay cards which hook into the vga cable,
> between gfx card and monitor. Nobody uses it as far I know.
Yes some do (think about Sigma Designs H+ or NetStream2000).
You are talking about analog overlay.
But graphic accelerators providing hardware accelerated yuv buffer
display with rgb conversion and scaling in hard also use a special
color to make the ``digital'' overlay. (try the magnifying loop
on any dvd player under windoze).
That may also be the case for cards using the ``feature connector''
(analog input on vga card).
Sincerely
--
Emmanuel Michon
Ing�nieur en d�veloppement logiciel
REALmagic France
Mobile: 0662834836 GPGkeyID: D2997E42
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