Re: designing a screen reader

[saqib saqib-shaikh freeserve co uk]

Hi Jim, In terms of C/C++ source code, how could I get the 
contents of /dev/vca0 into say and 80 by 25 array?

thanks, saqib shaikh


On 29 Aug 99, at 19:14, James R. Van Zandt wrote:

> 
> Under Linux, the screen contents is available via the virtual console
> devices like /dev/vcs1 and /dev/vcsa1 (one is without attributes, and
> the other is with them).
> 
> 		       - Jim Van Zandt
> 
> 
> >From: saqib saqib-shaikh freeserve co uk
> >Date: Sun, 29 Aug 1999 11:53:00 +0100
> >
> >For a project I am doing, I have decided to attempt to write a 
> >console screen reader for linux/unix. However, while I know c++ I 
> >do not know many of the low level linux calls, such as how to get 
> >the contents of the screen. In msdos you could do this using 
> >memcpy because you could read from the screen memory, but due 
> >to security and suchlike I don't think an equivalent is possible 
> >under unix/linux. If anyone has any help to offer, please contact me 
> >privately at saqib saqib-shaikh freeserve co uk 
> >thanks, saqib
> 
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