From:	Bjorn Hansen <viking AT xyz DOT net>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Memory buffer in VGA mode 13h
Date:	Thu, 13 Aug 1998 11:29:00 -0800
Organization:	ISPNews http://ispnews.com
Lines:	49
Message-ID:	<35D33E7B.A1629AF3@xyz.net>
References:	<e6AA1.1381$Oj4 DOT 2462004 AT nntpserver DOT swip DOT net>
NNTP-Posting-Host:	hom-3-4.xyz.net
Mime-Version:	1.0
NNTP-Posting-Date:	13 Aug 1998 19:31:03 GMT
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Well it works ok for me. Here is some code that works so you can see if
it is similar to what you are trying to do.


#include <go32.h>
#include <sys/farptr.h>
#include <sys/movedata.h>
#include <dpmi.h>

#define VGA_13h 0x13
#define TEXT 3
#define BACKGROUND 6

char image[320*200];

///////////////set mode////////////////////

void set_mode(int mode)
     {
     __dpmi_regs r;
     r.x.ax = mode;
     __dpmi_int(0x10, &r);
     };
////////////create the picture//////////////
void make_pic(void)
     {
     int i;

     memset(image,BACKGROUND,sizeof(image));
     };
///////put the picture on the screen///////
void paint(void)
     {
     dosmemput(image,320*200,0xA0000);
     };
///////////////////MAIN/////////////////////
void main()
{
 set_mode(VGA_13h);
 make_pic();
 paint();
 while(!kbhit());
 set_mode(TEXT);
}



Bjorn Hansen

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