/*
*	scroll.h
*
*****************************************************************************
*
*	Scrolling in Text mode ( DOS )
*     	~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*****************************************************************************
*
*     	Author           :  Rajesh _ThE gReAt
*	Built on         :  some time in 2k
*	Last Modified on :  Friday, February 15, 2002, 11:53:36 PM
*
*	Known errors : ---===(none)===---
*
*****************************************************************************
*	DISCLAIMER:
*****************************************************************************
*
*	Programmers may incorporate any or all code into their programs,
*	giving proper credit within the source. Publication of the
*	source routines is permitted so long as proper credit is given
*	to Rajesh _ThE gReAt.
*
*	Copyright (C) 2002, 2003 by Rajesh _ThE gReAt.  You may use this program, or
*	code or tables extracted from it, as desired without restriction.
*	I can not and will not be held responsible for any damage caused from
*	the use of this software.
*
*	Read license.txt from http://www.rajeshgoli.com/license.txt
*	                   or http://www.rajeshgoli.com/license.htm
*	before using / distributing / or any sort of use of my source
*	Also read my disclaimer http://www.rajeshgoli.com/disclaimer.htm
*	
*	YOU AGREE TO BE BOUND BY MY DISCLAIMER AND LICENSE BY IN ANY WAY
*	USING THIS FILE .
*
*****************************************************************************
* This source works with Turbo C 2.0 and Turbo C++ 3.0 and above.
*****************************************************************************
*	Rajesh _ThE gReAt is a synonym of Rajesh Goli
*	Source freely distributable 
*****************************************************************************/

#ifndef __SCROLL_H
#define __SCROLL_H
#endif

#ifndef __DOS_H
#include<dos.h>
#endif

void scrolldown( int  , int  , int  , int  ,int );
void scrollup( int  , int  , int  , int  ,int );

void scrolldown( int start_row , int start_column , int end_row , int end_column ,int attrb)
{
	union REGS workregs;

	workregs.h.ah = 7;	/* Service Number */
	workregs.h.al = 1;	/* Number of lines to scroll */
	workregs.h.ch = start_row;
	workregs.h.cl = start_column;
	workregs.h.dh = end_row;
	workregs.h.dl = end_column;
	workregs.h.bh = attrb;	/* Display attribute of blank line
				   created at top */

	int86(0x10,&workregs,&workregs);
}

void scrollup( int start_row , int start_column , int end_row , int end_column ,int attrb)
{
	union REGS workregs;

	workregs.h.ah = 6;	/* Service Number */
	workregs.h.al = 1;	/* Number of lines to scroll */
	workregs.h.ch = start_row;
	workregs.h.cl = start_column;
	workregs.h.dh = end_row;
	workregs.h.dl = end_column;
	workregs.h.bh = attrb;	/* Display attribute of blank line
				   created at top */

	int86(0x10,&workregs,&workregs);
}