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This short piece of code shows you how to display text in color in a C# windows console program. The corresponding WIN32 API functions are in the kernel32.dll and are imported and declared external. The only other problem is to assign variable types that accommodate the types listed in the Win32 API help file.
Comments (Newest First)
armando.miani | Newbie Poster | Jun 25th, 2008
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Why don't use:
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Printing in red...");
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Printing in green...");
Console.ForegroundColor = ConsoleColor.Blue;
Console.WriteLine("Printing in blue..."); catapult | Newbie Poster | Jun 22nd, 2008
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Change Console Color in C#
using System;
using System.Runtime.InteropServices; // DllImport() needed to change the backgr color
namespace color_console
{
class MainClass
{
// DllImport - change the backgr color
[DllImport("kernel32.dll")] public static extern bool SetConsoleTextAttribute(IntPtr hConsoleOutput, int wAttributes);
[DllImport("kernel32.dll")] public static extern IntPtr GetStdHandle(uint nStdHandle);
public static void Main(string[] args)
{
//use white font and change bckgr color to blue
uint STD_OUTPUT_HANDLE = 0xfffffff5;
IntPtr hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
SetConsoleTextAttribute(hConsole, 15);
Console.BackgroundColor = ConsoleColor.Blue;
Console.Clear();
// THAT WAS ALL the code needed to change the background color
// print something
Console.WriteLine("Hello World!\n\nPress Enter to continue...");
Console.Read();
//the rest of the code...
// OTHER EXAMPLES of color background
String[] colorNames = ConsoleColor.GetNames(typeof(ConsoleColor));
// cannot print all colors under ConsoleColor, only 10 out of 16
for (int x = 0; x < colorNames.Length; x++)
{
Console.BackgroundColor = (ConsoleColor)Enum.Parse(typeof(ConsoleColor), colorNames[x]);
Console.Clear();
// this is just to ptrint on white background wiht coloured font
if (Console.BackgroundColor == ConsoleColor.White)
{ Console.ForegroundColor = ConsoleColor.Blue; }
Console.Write("This is background color {0}.", colorNames[x]);
Console.WriteLine("\n\nPress Enter to continue...");
Console.Read();
}
// next section shows different combinations of font and font_backgr colors
Console.BackgroundColor = ConsoleColor.White;
Console.Clear();
// increase k for more color options
for (int k = 1; k < 255; k++)
{
SetConsoleTextAttribute(hConsole, k);
Console.WriteLine("{0:d3} coloured font wiht background !", k);
}
// final setting
SetConsoleTextAttribute(hConsole, 236);
}
}
}
using System;
using System.Runtime.InteropServices; // DllImport() needed to change the backgr color
namespace color_console
{
class MainClass
{
// DllImport - change the backgr color
[DllImport("kernel32.dll")] public static extern bool SetConsoleTextAttribute(IntPtr hConsoleOutput, int wAttributes);
[DllImport("kernel32.dll")] public static extern IntPtr GetStdHandle(uint nStdHandle);
public static void Main(string[] args)
{
//use white font and change bckgr color to blue
uint STD_OUTPUT_HANDLE = 0xfffffff5;
IntPtr hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
SetConsoleTextAttribute(hConsole, 15);
Console.BackgroundColor = ConsoleColor.Blue;
Console.Clear();
// THAT WAS ALL the code needed to change the background color
// print something
Console.WriteLine("Hello World!\n\nPress Enter to continue...");
Console.Read();
//the rest of the code...
// OTHER EXAMPLES of color background
String[] colorNames = ConsoleColor.GetNames(typeof(ConsoleColor));
// cannot print all colors under ConsoleColor, only 10 out of 16
for (int x = 0; x < colorNames.Length; x++)
{
Console.BackgroundColor = (ConsoleColor)Enum.Parse(typeof(ConsoleColor), colorNames[x]);
Console.Clear();
// this is just to ptrint on white background wiht coloured font
if (Console.BackgroundColor == ConsoleColor.White)
{ Console.ForegroundColor = ConsoleColor.Blue; }
Console.Write("This is background color {0}.", colorNames[x]);
Console.WriteLine("\n\nPress Enter to continue...");
Console.Read();
}
// next section shows different combinations of font and font_backgr colors
Console.BackgroundColor = ConsoleColor.White;
Console.Clear();
// increase k for more color options
for (int k = 1; k < 255; k++)
{
SetConsoleTextAttribute(hConsole, k);
Console.WriteLine("{0:d3} coloured font wiht background !", k);
}
// final setting
SetConsoleTextAttribute(hConsole, 236);
}
}
}
vegaseat | Kickbutt Moderator | Jan 4th, 2005
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4 + 14*16 = 228