Redirecting The Command-line To A Text Block

Geoffrey Hunter

mbedded.ninja Author

It involves inheriting from the StringWriter class, and overwriting it's WriteLine function with your own code that writes the text to the text block (or any other text-capable object), rather than Windows writing it to the system console (whatever that may be).

Note that this code is suitable for passing into functions that require a System.IO.Stream, but this does not redirect messages that are being sent directly to the command line.

namespace StringRedirect
{    
    /// <summary>
    /// Allows text blocks to appear like a command line for serial out string messages.
    /// </summary>
    public class TextBlockStreamWriter : StringWriter
    {
        private TextBlock _textBlock;

        public string Text
        {
            get 
            { 
                return _textBlock.Text; 
            }
            set
            {
                _textBlock.Text += value;
            }
        }

        public TextBlockStreamWriter(ref TextBlock t)
        {
            _textBlock = t;
        }

        public override void WriteLine(string msg)
        {
            Text = msg + "\n";
        }
    }
}