Path: utzoo!attcan!uunet!cti1!mpledger From: mpledger@cti1.UUCP (Mark Pledger) Newsgroups: comp.binaries.ibm.pc.d Subject: Re: Borland BGI question Message-ID: <334@cti1.UUCP> Date: 11 Dec 90 11:57:44 GMT References: <1990Dec7.121658.25371@aplcen.apl.jhu.edu> , <1990Dec10.201548.4671@aplcen.apl.jhu.edu> Organization: Comprehensive Technologies Int., Arlington VA Lines: 30 A friend of mine who is a professional graphics programmer (and who owns an AT&T 6300) explained the problem to me. Apprently, AT&T does not use the standard video mode registration with BIOS properly. When someone uses the normal BIOS video calls, the AT&T returns an invalid video configuration. The only way out is to specifically check for AT&T type machines when developing graphics programs for the PC. In order to due this you will have to contact AT&T's PC technical office (or something like that) and find out the exact procedure for detecting the correct video modes when using the AT&T 6300. This is why there is an extra driver for Hecules-type video displays. The only difference is the fact that since Hercules is a "de facto" monochrome standard, and its widely supported, all graphics programs automatically either check specifically for Hercules-type displays or include a special Hercules graphics driver. -- Sincerely, Mark Pledger -------------------------------------------------------------------------- CTI | (703) 685-5434 [voice] 2121 Crystal Drive | (703) 685-7022 [fax] Suite 103 | Arlington, VA 22202 | mpledger@cti.com --------------------------------------------------------------------------