Windows layer storage/transmission.

Erlichmen, Shay Shay_Erlichmen "at" icominfosys.com
Wed, 02 Jan 2002 14:57:40 +0000


Hi,

There is a better way to a approach this I'm sure that a certain level the
system tell you that it is going to blit an image, all you need to-do is
send only once the image to the viewer, next time that the same image is
going to be blitted all you need to-do is send which image to blit. 

-Shay.

-----Original Message-----
From: ScanMan [mailto:scanman "at" scanman.mine.nu] 
Sent: Wednesday, January 02, 2002 12:58 PM
To: VNC list
Subject: Re: Windows layer storage/transmission.


On Wed, 2002-01-02 at 03:55, A friend wrote:
> Why not, for the server, for the client it's no problem for sure. Is 
> it not possible to capture the image from within a single window 
> within MS-Windows? I think it is, since Alt-PrintScreen does the same 
> thing. Monitoring window creation/deletion must be possible too.

Hmmm, yes, I didn't think of that. However, wouldn't a global pixmap cache
solve the same problem in a more general way? For example, the server would
scan the screen for patterns that tend to repeat, and then send them to the
client only once, thereafter sending only a reference number. Things like
font characters, window borders, buttons, icons, etc. could then all be
saved at the client, and the server would only send their arrangement.
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