Article View: comp.sys.ibm.pc.programmer
Article #148Re: reading directly from screen
From: Joseph D. Shapiro
Date: Fri, 23 Mar 1990 16:54
Date: Fri, 23 Mar 1990 16:54
19 lines
988 bytes
988 bytes
In article <3850@plains.UUCP> person@plains.UUCP (Brett G. Person) writes:
>How do I make Microsoft C read directly from video memory. I need to
>access the memory starting from b800.
>
>What does the c code that allows me to do this look like?
I do it all the time:
typedef far char farchar;
farchar *p;
char c;
p = (farchar *)(0xb8000000L);
c = *p;
--
__--__--__--__--__--__--__--__--__--__--__--__--__--__--__--__--__--__--__--__
Joe Shapiro "My other car is a turbo...
ISC-Bunker Ramo ...too."
{decvax,yale,philabs,oliveb}!bunker!shap
Technical Details
Message-ID:
<10791@bunker.UUCP>Path:
arc1-ca.pugleaf.net!utzoo!attcan!uunet!cs.utexas.edu!yale!bunker!shapReferences:
<3850@plains.UUCP>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!cs.utexas.edu!yale!bunker!shap From: shap@bunker.UUCP (Joseph D. Shapiro) Newsgroups: comp.sys.ibm.pc.programmer Subject: Re: reading directly from screen Message-ID: <10791@bunker.UUCP> Date: 23 Mar 90 16:54:58 GMT References: <3850@plains.UUCP> Reply-To: shap@clunker.UUCP (Joseph D. Shapiro) Organization: ISC-Bunker Ramo, an Olivetti Company, Shelton, Ct Lines: 19