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    <p>After following the link suggested by David, I decided to write a solution to your problem which is more specific to your case. This version allows you to receive the stdout in your GUI via a <code>BackgroundWorker</code> <code>PropertyChangedEventHandler</code> call back.</p> <p>Here's the code for the ConsoleRedirector:</p> <pre><code>public class ConsoleRedirector : IDisposable { private static ConsoleRedirector _instance; public static void attach(ProgressChangedEventHandler handler, bool forceConsoleRedirection) { Debug.Assert(null == _instance); _instance = new ConsoleRedirector(handler, forceConsoleRedirection); } public static void detatch() { _instance.Dispose(); _instance = null; } public static bool isAttached { get { return null != _instance; } } private static void ResetConsoleOutStream() { //Force console to recreate its output stream the next time Write/WriteLine is called typeof(Console).GetField("_out", System.Reflection.BindingFlags.Static | System.Reflection.BindingFlags.NonPublic).SetValue(null, null); } private const int PERIOD = 500; private const int BUFFER_SIZE = 4096; private volatile bool _isDisposed; private BackgroundWorker _worker; private readonly IntPtr _stdout; private readonly Mutex _sync; private readonly System.Threading.Timer _timer; private readonly char[] _buffer; private readonly AnonymousPipeServerStream _outServer; private readonly TextReader _outClient; private readonly bool _forceConsoleRedirection; private StreamWriter _consoleStandardOut; private ConsoleRedirector(ProgressChangedEventHandler handler, bool forceConsoleRedirection) { bool ret; _forceConsoleRedirection = forceConsoleRedirection; if (!_forceConsoleRedirection) { //Make sure Console._out is initialized before we redirect stdout, so the redirection won't affect it TextWriter temp = Console.Out; } AnonymousPipeClientStream client; _worker = new BackgroundWorker(); _worker.ProgressChanged += handler; _worker.DoWork += _worker_DoWork; _worker.WorkerReportsProgress = true; _stdout = GetStdHandle(STD_OUTPUT_HANDLE); _sync = new Mutex(); _buffer = new char[BUFFER_SIZE]; _outServer = new AnonymousPipeServerStream(PipeDirection.Out); client = new AnonymousPipeClientStream(PipeDirection.In, _outServer.ClientSafePipeHandle); Debug.Assert(_outServer.IsConnected); _outClient = new StreamReader(client, Encoding.Default); ret = SetStdHandle(STD_OUTPUT_HANDLE, _outServer.SafePipeHandle.DangerousGetHandle()); Debug.Assert(ret); if (_forceConsoleRedirection) { ResetConsoleOutStream(); //calls to Console.Write/WriteLine will now get made against the redirected stream } _worker.RunWorkerAsync(_outClient); _timer = new System.Threading.Timer(flush, null, PERIOD, PERIOD); } void _worker_DoWork(object sender, DoWorkEventArgs e) { BackgroundWorker worker = (BackgroundWorker)sender; TextReader client = (TextReader)e.Argument; try { while (true) { int read = client.Read(_buffer, 0, BUFFER_SIZE); if (read &gt; 0) worker.ReportProgress(0, new string(_buffer, 0, read)); } } catch (ObjectDisposedException) { // Pipe was closed... terminate } catch (Exception ex) { } } private void flush(object state) { _outServer.Flush(); } public void Dispose() { Dispose(true); } ~ConsoleRedirector() { Dispose(false); } private void Dispose(bool disposing) { if (!_isDisposed) { lock (_sync) { if (!_isDisposed) { _isDisposed = true; _timer.Change(Timeout.Infinite, Timeout.Infinite); _timer.Dispose(); flush(null); try { SetStdHandle(STD_OUTPUT_HANDLE, _stdout);} catch (Exception) { } _outClient.Dispose(); _outServer.Dispose(); if (_forceConsoleRedirection) { ResetConsoleOutStream(); //Calls to Console.Write/WriteLine will now get redirected to the original stdout stream } } } } } private const int STD_OUTPUT_HANDLE = -11; [DllImport("kernel32.dll")] [return: MarshalAs(UnmanagedType.Bool)] private static extern bool SetStdHandle(int nStdHandle, IntPtr hHandle); [DllImport("kernel32.dll")] private static extern IntPtr GetStdHandle(int nStdHandle); } </code></pre> <p>Here's a link to a complete sample form which demonstrates how to use it: <a href="http://pastebin.com/UubBhyqJ" rel="noreferrer">ConsoleRedirector Example Form</a></p>
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    1. COIt works!! Thanks a lot!!
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    2. CO+1 excellent work!!
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