Most of my best dos software requires vesa. Your link was extremely good. I wish it was in a nice text book that I could sit down and read. Not very much into windows stuff even if it is better. I miss the vic 20 where I could poke into the video and make it look like anything I wanted. Question could I deliver a vesa command to the video card using the dos copy command. Works for printers why not video. Never new the proper hex commands so I never tried it. Might also work for cds. Copy a simple hex file to a cd and make it play music. Never know until you try. Might work or might not. With the vesa commands I could change screen resolution on my laptop and make it fill the screen. Would have to also change the font size so I cold read it.
cheers DS On Wed, 10 Jun 2015 18:23:53 -0500 Rugxulo <rugx...@gmail.com> writes: > Hi, > > On Tue, Jun 9, 2015 at 3:50 PM, Dale E Sterner <sunbeam...@juno.com> > wrote: > > > > Another dumb question; are there any good books out there about > Vesa.? > > You mean actual physical books? Just documenting the spec or > demonstrating use or example programs or ... ? I could be wrong, but > I > assume you mean the DOS-oriented uses (which these days are > considered > obsolete in lieu of whatever graphical APIs "modern" OSes use). I > think, at best, "VESA" is nowadays only considered a weak fallback > for > those OSes without hardware-accelerated graphical drivers. So I > dunno > what you think you're going to accomplish. (I'm not trying to > discourage you, but it's become painfully obvious that most people > aren't sympathetic to such old legacy anymore.) > > You could read the Wikipedia article (and its links): > > http://en.wikipedia.org/wiki/VESA_BIOS_Extensions > > There were also text files of the older specs on x2ftp (mirror): > > 1). > http://ftp.lanet.lv/ftp/mirror/x2ftp/msdos/programming/specs/vesasp12.zip > 2). > http://ftp.lanet.lv/ftp/mirror/x2ftp/msdos/programming/specs/vbe20.zip > > ------------------------------------------------------------------------- ----- > _______________________________________________ > Freedos-user mailing list > Freedos-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freedos-user > ____________________________________________________________ > Protect what matters > Floods can happen anywhere. Learn your risk and find an agent today. > http://thirdpartyoffers.juno.com/TGL3165/5579bef9e46e3ef87c26mp03duc > ******************************************************>>>> >From Dale Sterner - MS organic chemistry http://pubs.acs.org/doi/abs/10.1021/jo00975a052 *******************************************************>>>> ------------------------------------------------------------------------------ _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user