If the console moves, Pause. : Console « Development Class « C# / C Sharp

1. C# / C Sharp
2. Development Class
3. Console

If the console moves, Pause.

        

using System;
using System.IO;

namespace CSharp.Util
{
  /// <summary>
  /// If the console moves, Pause.
  /// [Esc] throws an ApplicationException so you can exit.
  /// </summary>
  public class ConsolePause : IDisposable
  {
    int BeforeConsoleTop;
    int ExpectedLines = 0;
    bool Wait;
    public ConsolePause(bool wait)
    {
      Wait = wait;
      try
      {
        BeforeConsoleTop = Console.CursorTop;
      }
      catch (IOException)
      {
        // no console
      }
    }
    public void WriteLine(string s)
    {
      Console.WriteLine(s);
      ExpectedLines++;
    }
    public void warn(string s)
    {
      Console.ForegroundColor = ConsoleColor.Yellow;
      Console.WriteLine(s);
      Console.ForegroundColor = ConsoleColor.White;
      ExpectedLines++;
    }
    public void err(string s)
    {
      Console.ForegroundColor = ConsoleColor.Red;
      Console.WriteLine(s);
      Console.ForegroundColor = ConsoleColor.White;
    }

    public bool HasMessages
    {
      get
      {
        try
        {
          if (Console.CursorTop > BeforeConsoleTop + ExpectedLines)
            return true;
        }
        catch (IOException)
        {
        }
        return false;
      }
    }
    public void Dispose()
    {
      try
      {
        if (HasMessages)
        {
          err("Errors");
          if (Wait)
            if (Console.ReadKey().Key == ConsoleKey.Escape)
              throw new ApplicationException("done");
        }

        if (Console.BufferHeight > 1000)
          if (Console.CursorTop > Console.BufferHeight - 1000)
          {
            // Make more space so Console.CursorTop moves, instead of staying at the max.
            Console.Clear();
            Console.CursorTop = 0;
          }
      }
      catch(IOException)
      {
        // no console
      }
    }
  }
}

   
    
    
    
    
    
    
    
  

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