using System;
   using System.Runtime.InteropServices;

   namespace ConsoleColor
   {
      /// Summary description for Class2.
      public class Class2
      {
         private int hConsoleHandle;
         private COORD ConsoleOutputLocation;
         private CONSOLE_SCREEN_BUFFER_INFO ConsoleInfo;
         private int OriginalColors;

         private const int  STD_OUTPUT_HANDLE = -11;

         [DllImport("kernel32.dll", EntryPoint="GetStdHandle", SetLastError=true,
                         CharSet=CharSet.Auto,
                         CallingConvention=CallingConvention.StdCall)]
        private static extern int GetStdHandle(int nStdHandle);

         [DllImport("kernel32.dll", EntryPoint="GetConsoleScreenBufferInfo",
                         SetLastError=true, CharSet=CharSet.Auto,
                         CallingConvention=CallingConvention.StdCall)]
        private static extern int GetConsoleScreenBufferInfo(int hConsoleOutput,
                         ref CONSOLE_SCREEN_BUFFER_INFO lpConsoleScreenBufferInfo);

         [DllImport("kernel32.dll", EntryPoint="SetConsoleTextAttribute",
                         SetLastError=true, CharSet=CharSet.Auto,
                         CallingConvention=CallingConvention.StdCall)]
        private static extern int SetConsoleTextAttribute(int hConsoleOutput,
                                 int wAttributes);
 
         public enum Foreground
         {            
            Blue = 0x00000001,
            Green = 0x00000002,
            Red = 0x00000004,
            Intensity = 0x00000008
         }

         public enum Background
         {
            Blue = 0x00000010,
            Green = 0x00000020,
            Red = 0x00000040,
            Intensity = 0x00000080
         }

         [StructLayout(LayoutKind.Sequential)] private struct COORD
         {
            short X;
            short Y;
         }
            
         [StructLayout(LayoutKind.Sequential)] private struct SMALL_RECT
         {
            short Left;
            short Top;
            short Right;
            short Bottom;
         }

         [StructLayout(LayoutKind.Sequential)] private struct CONSOLE_SCREEN_BUFFER_INFO
         {
            public COORD dwSize;
            public COORD dwCursorPosition;
            public int wAttributes;
            public SMALL_RECT srWindow;
            public COORD dwMaximumWindowSize;
         }

         // Constructor.
         public Class2()
         {
            ConsoleInfo = new CONSOLE_SCREEN_BUFFER_INFO();
            ConsoleOutputLocation = new COORD();
            hConsoleHandle = GetStdHandle(STD_OUTPUT_HANDLE);
            GetConsoleScreenBufferInfo(hConsoleHandle, ref ConsoleInfo);
            OriginalColors = ConsoleInfo.wAttributes;
         }        

         public void TextColor(int color)
         {
            SetConsoleTextAttribute(hConsoleHandle, color);
         }
        
         public void ResetColor()
         {
            SetConsoleTextAttribute(hConsoleHandle, OriginalColors);
         }
      }
   }

  using System;

   namespace ConsoleColor
   {
      class Class1
      {
         [STAThread]
         static void Main(string[] args)
         {
            Class2 TextChange = new Class2();
            Console.WriteLine("Original Colors");
            Console.WriteLine("Press Enter to Begin");
            Console.ReadLine();
            TextChange.TextColor((int)Class2.Foreground.Green +
                                 (int)Class2.Foreground.Intensity);
            Console.WriteLine("THIS TEXT IS GREEN");
            Console.WriteLine("Press Enter to change colors again");
            Console.ReadLine();
            TextChange.TextColor((int)Class2.Foreground.Red +
                                 (int)Class2.Foreground.Blue +
                                 (int)Class2.Foreground.Intensity);
            Console.WriteLine("NOW THE TEXT IS PURPLE");
            Console.WriteLine("Press Enter to change colors again");
            Console.ReadLine();
            TextChange.TextColor((int)Class2.Foreground.Blue +
                                 (int)Class2.Foreground.Intensity +
                                 (int)Class2.Background.Green +
                                 (int)Class2.Background.Intensity);
            Console.WriteLine("NOW THE TEXT IS BLUE AND BACKGROUND OF IT IS GREEN");
            Console.WriteLine("Press Enter change everything back to normal");
            Console.ReadLine();
            TextChange.ResetColor();
            Console.WriteLine("Back to Original Colors");
            Console.WriteLine("Press Enter to Terminate");
            Console.ReadLine();
     }
      }
   }