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snip0493.zip
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VIDPORT.C
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C/C++ Source or Header
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1993-04-05
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744b
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35 lines
/*
** Portable PC screen functions
** Public domain by Bob Stout
** Uses SCROLL.C, also from SNIPPETS
*/
#include <stdio.h>
#include <dos.h>
#include "scrnmacs.h" /* Also in SNIPPETS */
void scroll(int, int, int, int, int, int, int);
#define SCROLL_UP 0
#define SCROLL_DN 1
void GotoXY(int col, int row)
{
union REGS regs;
setbuf(stdout, NULL);
regs.h.dh = (unsigned)row;
regs.h.dl = (unsigned)col;
regs.h.bh = VIDPAGE;
regs.h.ah = 2;
int86(0x10, ®s, ®s);
}
void ClrScrn(int vattrib)
{
union REGS regs;
scroll(SCROLL_UP, 0, vattrib, 0, 0, SCREENROWS, SCREENCOLS);
GotoXY(0, 0); /* Home cursor */
}