From: mharris AT blackwidow DOT saultc DOT on DOT ca Date: Tue, 4 Feb 1997 15:08:26 -0500 (EST) Reply-To: mharris AT blackwidow DOT saultc DOT on DOT ca To: Jason White cc: jdashiel AT eagle1 DOT eaglenet DOT com, opendos AT mail DOT tacoma DOT net Subject: Re: [opendos] Accessibility of OpenDOS with braille and speech output devices In-Reply-To: Message-ID: Organization: Total disorganization. MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-opendos AT mail DOT tacoma DOT net Precedence: bulk On Mon, 3 Feb 1997, Jason White wrote: > I think an environmental variable that could be set in config.sys or > autoexec.bat for either BIOS calls or direct screen writing would be a > suitable solution. Since it would only effect programs that read that environment variable (and only if they chose to listen to it) I think it would just waste environment space. Also, since the operating system really doesn't have any control over such a thing (nor should) a better place would be either as a command line switch to COMMAND.COM ie (COMMAND.COM /P /DV (direct video)) or as an option in an INI file for COMMAND.COM. This is the *proper* place for such a thing IMO. 4DOS does it like this and it works just fine. [snip] > screen reading programme in order to read text that has been written > directly to video memory. Indeed, the more advanced of these programmes > use sophisticated monitoring techniques in an attempt to detect changes on > the screen that are not due to BIOS calls. I think they intercept the > computer's timer and examine the video memory on a regular basis, but I am There you go! Perhaps a simple reconfigure of the software and it will monitor video memory. Another possible option is to buy better software. I'm sure that the government probably pays for it anyway. That is what I would personally do in such a situation anyways (ie: in order to be able to use software that unfortunately ONLY writes to the screen). There's always more than one way to skin a cat. Mike A. Harris | http://blackwidow.saultc.on.ca/~mharris Computer Consultant | My webpage has moved and my address has changed. My dynamic address: http://blackwidow.saultc.on.ca/~mharris/ip-address.html mailto:mharris AT blackwidow DOT saultc DOT on DOT ca LINUX: Lost your video after running a game or DOSemu, email me for fix.