Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!steinmetz!davidsen From: davidsen@steinmetz.steinmetz.UUCP (William E. Davidsen Jr) Newsgroups: comp.sys.ibm.pc Subject: Re: Turning off the cursor on an EGA Message-ID: <6654@steinmetz.steinmetz.UUCP> Date: Fri, 10-Jul-87 15:50:26 EDT Article-I.D.: steinmet.6654 Posted: Fri Jul 10 15:50:26 1987 Date-Received: Sun, 12-Jul-87 13:03:28 EDT References: <3508@ecsvax.UUCP> Reply-To: davidsen@kbsvax.steinmetz.UUCP (William E. Davidsen Jr) Organization: General Electric CRD, Schenectady, NY Lines: 18 Keywords: EGA, CGA, MDA, Cursor, OFF, HELP, antidisestablishmentarianism In article <3508@ecsvax.UUCP> mjg@ecsvax.UUCP (Michael Gingell) writes: > >Does anyone know of a reliable method of turning off the cursor on >an EGA when running in CGA emulation mode ?. With regular monochrome or >color display adapters one can address the 6845 display controller thus: ... assembly code deleted ... >However, most EGAs do not contain a 6845 nor do they fully emulate one. >Also, the BIOS and DOS do not contain any official documented method of >doing this via INT calls. I seem to remember seeing this stated for a fact >in Microsoft's Advanced MS-DOS book. I know you can specify an illegal >location for the cursor, or specify impossible start and end cursor scan >lines but what is the effect of this on an EGA ?. [ the effect is that the cursor goes away, at least setting the cursor type with function 10h. ] -- bill davidsen (wedu@ge-crd.arpa) {chinet | philabs | sesimo}!steinmetz!crdos1!davidsen "Stupidity, like virtue, is its own reward" -me