More info
Normal, winvnc use a hookdll to get the possible changed screen
regions. This hooking technique is not accurate ( depend on the used
applications ) and therefore need full screen scanning to compensate.
This vncdrv capture the changed screen region directly in the video
driver and can
pass the exact locations of the changed screen regions.
The first version of this driver (see mail list last month) had a
problem processing the
big number of changed rectangles provided by the driver (up to 2000 a
sec).
This version implemented the region code ( combining rects) in the
driver. This way
the number of rects passed from the driver to winvnc is reduced to 5 a
10% and we
can combine the accuracy with a higher update speed.
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See also: http://www.uk.research.att.com/vnc/intouch.html
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