CODEWITHSUNDEEP
c#.netcolorsbackgroundconsole
user14656666
user14656666

Reputation:

Change ConsoleColor to a hex value

So I recently started learning C#, and I'm struggling to change background color of a console to a hex value. Here is my code:

using System;

namespace MyFisrtC_App
{
    class Program
    {
        static void Main(string[] args)
        {
            ConsoleColor BGColor = ConsoleColor.White;
            ConsoleColor FGColor = ConsoleColor.Black;

            Console.Title = "Dumb App";
            Console.BackgroundColor = BGColor;
            Console.ForegroundColor = FGColor;

            Console.Clear();

            Console.WriteLine("This is just a simple dumb app. There is nothing special about it.");

            Console.ReadKey();
        }
    }
}

Also if you know how to change font in C# that would be pretty cool.

Upvotes: 1

Views: 3102

Answers (3)

Nathaniel Walser
Nathaniel Walser

Reputation: 216

This is unfortunately not possible due to the restriction of the Console API.

But you can for example calculate the nearest color to one that exist in the API.

static ConsoleColor ClosestConsoleColor(byte r, byte g, byte b)
{
    ConsoleColor ret = 0;
    double rr = r, gg = g, bb = b, delta = double.MaxValue;

    foreach (ConsoleColor cc in Enum.GetValues(typeof(ConsoleColor)))
    {
        var n = Enum.GetName(typeof(ConsoleColor), cc);
        var c = System.Drawing.Color.FromName(n == "DarkYellow" ? "Orange" : n); // bug fix
        var t = Math.Pow(c.R - rr, 2.0) + Math.Pow(c.G - gg, 2.0) + Math.Pow(c.B - bb, 2.0);
        if (t == 0.0)
            return cc;
        if (t < delta)
        {
            delta = t;
            ret = cc;
        }
    }
    return ret;
}

This is from: https://stackoverflow.com/a/12340136/10315352 credits all to @Glenn

Upvotes: 5

Ben
Ben

Reputation: 787

ConsoleColour is an enum which essentially is a list of numbers with defined names. So you can do the below to convert a number to a color

        int number = 7;
        ConsoleColor colour = (ConsoleColor)number;

If you want to do it from hex use the below

string hex = "0A";
int number = Convert.ToInt32(hex, 16);
ConsoleColor colour = (ConsoleColor)number;

You just need to make sure the number doesnt fall outside of the length of the enum, for example

if(number < Enum.GetValues<ConsoleColor>().Length -1 && number >= 0)
{
   Console.ForeGroundColor = (ConsoleColor)number;
}

Upvotes: 0

Jacopo Mosconi
Jacopo Mosconi

Reputation: 1052

using System;

namespace TestCSharp
{
class Program
{
    static void Main(string[] args)
    {
        Console.ForegroundColor = ConsoleColor.White;
        Console.BackgroundColor = ConsoleColor.Red;
        Console.WriteLine("background red and text white");
        Console.ResetColor();
        Console.WriteLine("Color reset");
        Console.ReadKey();
    }
  }
}

you can't use hex value, you can use these color:

Black, DarkBlue, DarkGreen, DarkCyan, DarkRed, DarkMagenta, DarkYellow, Gray, DarkGray, Blue, Green, Cyan, Red, Magenta, Yellow, White

Upvotes: -1

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