Message-ID:	<383EE0F3.F1CD9F6A@arcticmail.com>
From:	N J Chackowsky <nick AT arcticmail DOT com>
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Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Colored Text
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Date:	Fri, 26 Nov 1999 19:32:35 GMT
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The trouble with using conio.h is that you pretty much have to then use
the printf family to make use of it. 

Here's a little .h file that allows you to use color fairly easily and
still retain
the standard cout << method of outputting in c++

I notice that Windows messed up the escape character. The first
character in 
Ansi::background, for instance, is ALT-27, the left pointing arrow.



=======snip========

/* ansi.h
		#include "ansi.h" to get three common ansi functions
			cout << clear(f, b)		clear the screen
			cout << color(f, b)		change text attributes
			cout << locate(r, c)	move cursor to position (r,c)

		You must include the ANSI.SYS device driver in your CONFIG.SYS
		file.

		DOS/Win31:   device=c:\dos\ansi.sys
		Win95:       device=c:\windows\command\ansi.sys

		Would be more efficient if I'd used char[] instead of strings,
		but strings are so much EASIER to work with.
*/

#include <string>
namespace Ansi {

	string background = "";
	string foreground = "";
	string clearscreen = "";
	string trans = "04261537";
	string style = "";
	string locator = "";
	string digits = "0123456789";

	string clear(int, int);
	string color(int, int);
	string locate(int, int);

}

string Ansi::locate(int r, int c) {
	Ansi::locator[3] = digits[r % 10];
	Ansi::locator[2] = digits[r / 10];
	Ansi::locator[6] = digits[c % 10];
	Ansi::locator[5] = digits[c / 10];
	return Ansi::locator;
}

string Ansi::clear(int f, int b) {
	Ansi::background[3] = Ansi::trans[b];
	Ansi::foreground[3] = Ansi::trans[f];
	return Ansi::style + Ansi::background + Ansi::foreground +
Ansi::clearscreen;
}


string Ansi::color(int f, int b) {
	if (f > 15) f = 15;
	if (f < 0) f = 0;
	if (f > 7) {
		style[2] = '1';
		f -= 8;
	} else style[2] = '0';
	if (b > 7) b = 7;
	if (b < 0) b = 0;
	Ansi::foreground[3] = Ansi::trans[f];
	Ansi::background[3] = Ansi::trans[b];
	return Ansi::style + Ansi::foreground + Ansi::background;
}


/* Sample useage:

#include <iostream>
#include <string>
#include <conio.h>
#include <dos.h>
#include "ansi.h"

int main() {
	cout << Ansi::color(15,1) << "Here come some colors" << endl;
	cout << Ansi::color(14,2) << "Press a key to start" << endl;
	getch();
	cout << Ansi::clear(7,0) << "Here is new test " << endl;
	for (int b=0; b < 8; b++) {
		for (int f=0; f < 16; f++) {
			if (f != b)
				cout << Ansi::color(f, b) << " This is a test." << endl;
			delay(200);
		}
	}
}

*/

============snap============

Michael Bronner wrote:
> 
> Hi there!
> I used to do some Turbo Pascal and GW Basic, and in those two languages it
> was simple to output text in a colored format, to set the background and
> foreground color of the text, etc. Can this be done in DJGPP C++ as well?
> Thanks for your help!
> 
> Sincerely,
> Michael G. Bronner
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