color

[GodOfMagic]

Hi,

I want to change color of my text with <stdlib.h> but when I run my program I see this : sh: 1: color: not found
and then my program runs normally but text is white as always

Can someone help me?

P.S I'm begginer :)
Sorry for bad english

[S G H]

You probably tried system("color xx").

1. http://www.cplusplus.com/forum/articles/11153/
2. Use cstdlib instead of stdlib.h
3. There is no portable way to change the console's color, and, personally, I know nothing about this topic on unix, but I just wanted to give you a heads-up.

[GodOfMagic]

Thanks,

but...
I found a way to make colours just with iostream :)

http://lifeforce4.wordpress.com/2010/09/03/linux-terminalbash-color-code-c-perl-bash/

I don't understand everything but it's working for me.

#include <iostream>
using namespace std;

// Set a few standards to make formatting easier.
const string NC = "\E[0m"; // No Color (reset to default)
const string HOME_CURSOR  = "\E[0;0H"; // Place the cursor at 0;0 position.
const string CLEAR_SCREEN = "\E[2J";

int main(int argc, char **argv)
{
   // Clear the screen and reset the cursor to the top left.
   cout << CLEAR_SCREEN << HOME_CURSOR;

   // print program name.
   cout << endl << argv[0] << endl;

   // display the color table.
   cout << "B;FG;BG\t";
   for (int i = 40; i < 48; i++)
      cout << "  " << i << "m\t";
   cout << endl;
   for (int fg = 30; fg < 38; fg++)
      for (int h = 0; h < 2; h++)
      {
         cout << NC << h << ";" << fg << "m";
         for (int bg = 40; bg < 48; bg++)
         {
            cout << "\t"
                 << "\E[" << h << "m"
                 << "\E[" << fg << "m"
                 << "\E[" << bg << "m"
                 << "  RgB  ";
         }
         cout << endl;
      }

   // Reset the console to no colors.
   cout << NC << endl;

   return 0;
}

[GodOfMagic]

Now I understand here everything :)

simple version of this code (working and much shorter) :

#include <iostream>
using namespace std;


int main()
{
   // display the color table.
   cout << "B;FG;BG\t";
   for (int i = 40; i < 48; i++)
      cout << "  " << i << "m\t";
   cout << endl;
   for (int fg = 30; fg < 38; fg++)
      for (int h = 0; h < 2; h++)
      {
         cout << "\E[0m" << h << ";" << fg << "m";
         for (int bg = 40; bg < 48; bg++)
         {
            cout << "\t"
                 << "\E[" << h << "m"
                 << "\E[" << fg << "m"
                 << "\E[" << bg << "m"
                 << "  RgB  ";
         }
         cout << endl;
      }

   // Reset the console to no colors.
   cout << "\E[0m" << endl;

    ///cout << "\t\E[0m\E[30m\E[40m";
    /// 0 txt type; 30 text colour; 40 background colour
    /// you can change numbers before m to change text and background colour and text type
    /// 0 italic, 1 bold
    /// 30,40 = black
    /// 31,41 = red
    /// 32,42 = green
    /// 33,34 = yellow
    /// and: blue, pink, electric blue, white

   return 0;
}

short colour output: cout << "\t\E[0m\E[37m\E[40m";

maybe I'm not a total newbie as I think I am?
thanks again for wasting your time :)

[andywestken]

You could even implement a manipulator for color setting, like chrisname does in his hex viewer.

Hex viewer
http://www.cplusplus.com/articles/NwTbqMoL/

Andy

[Dy7SLyTq]

theres also ncurses and pdcurses

[GodOfMagic]

ty

[giblit]

I believe they are called ANSI escape sequences you are using to color the console. http://en.wikipedia.org/wiki/ANSI_escape_code

They work good in linux but unfortunately if you are using windows you can not use ANSI AFAIK.

[Dy7SLyTq]

actually you can... ansi is a character set. i believe you mean escaped ansi color sequences.

edit:
and you can use pdcurses on windows for colors. *curses is an attempt to make code like that portable or seem like it, when in reality its not

[giblit]

You can also just use the windows api for color on windows

#include<iostream>
#include<windows.h>
enum COLOR
{
    black , blue , green , cyan , red , magenta , brown , normal , darkgrey , lightblue , lightgreen , lightcyan , lightred , lightmagenta , yellow , white
};

std::ostream& operator<<( std::ostream &stm , const COLOR &c)
{
    HANDLE out_handle = GetStdHandle( STD_OUTPUT_HANDLE );
    SetConsoleTextAttribute( out_handle , c );
    return( stm );
}

int main()
{
    std::cout << red << "apple\n" << yellow << "banana" << normal << std::endl;
}

*edit added default after banana so you don't have yellow return stuff

[S G H]

But we're into the Unix section /:

_{I just came back from a offline week and i'm now online from mobile - copypasted}

[Duthomhas]

Heh heh heh... this comes up every so often and I usually miss it, but here's a cookie for y'all.

http://www.cplusplus.com/forum/general/18200/#msg92479

Enjoy!

[Duthomhas]

One of these days I'm just gonna stop trying...