>I also have a question about vnc's protocol tho.. when it handles text..
>does it just send it like anything else... or is there some kind of OCR
>ability there? And if it isn't OCR... Why not? Fonts on a computer should be
>able to easily be ocr'd.. or maybe there's a hack that will let windows (or
>linux?) vnc servers link directly into the text and send it over in ASCII,
>instead of an image.
>Is there a technical reason why this wouldn't work?
It sends it like any other graphic. There are several reasons for this.
Firstly, OCR (even for computer-screen text) is extremely unreliable at
best and consumes an amazing amount of code size and CPU time. Secondly,
it requires that the client have exactly the same font available as the
server is "recognising". Neither requirement fits with VNC's philosophy of
thin servers and thinner clients, or with the cross-platform nature of the
RFB protocol. Both are also prohibitively difficult obstacles to overcome.
As it happens, most computer-screen fonts compress quite well using the
existing encoders, so it really isn't very much of a problem in the first
place. 128kbps upload isn't really that slow - I've used VNC over far less
and found performance (while not sparkling) to be acceptable. That was
without Zlib, Tight or any of the other experimental encodings introduced
in the past year or so, simply because I haven't implemented such things in
the Mac server yet.
--------------------------------------------------------------
from: Jonathan "Chromatix" Morton
mail: [EMAIL PROTECTED] (not for attachments)
big-mail: [EMAIL PROTECTED]
uni-mail: [EMAIL PROTECTED]
The key to knowledge is not to rely on people to teach you it.
Get VNC Server for Macintosh from http://www.chromatix.uklinux.net/vnc/
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