An Interactive Console I/O Wrapper/Interceptor in C# - What is the issue?
- by amazedsaint
I was trying to put together an interactive Console interceptor/wrapper in C# over the weekend, by re-mixing few code samples I've found in SO and other sites. With what I've as of now, I'm unable to read back from the console reliably. Any quick pointers?
public class ConsoleInterceptor
{
Process _interProc;
public event Action<string> OutputReceivedEvent;
public ConsoleInterceptor()
{
_interProc = new Process();
_interProc.StartInfo = new ProcessStartInfo("cmd");
InitializeInterpreter();
}
public ConsoleInterceptor(string command)
{
_interProc = new Process();
_interProc.StartInfo = new ProcessStartInfo(command);
InitializeInterpreter();
}
public Process InterProc
{
get
{
return _interProc;
}
}
private void InitializeInterpreter()
{
InterProc.StartInfo.RedirectStandardInput = true;
InterProc.StartInfo.RedirectStandardOutput = true;
InterProc.StartInfo.RedirectStandardError = true;
InterProc.StartInfo.CreateNoWindow = true;
InterProc.StartInfo.UseShellExecute = false;
InterProc.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
bool started = InterProc.Start();
Redirect(InterProc.StandardOutput);
Redirect(InterProc.StandardError);
}
private void Redirect(StreamReader input)
{
new Thread((a) =>
{
var buffer = new char[1];
while (true)
{
if (input.Read(buffer, 0, 1) > 0)
OutputReceived(new string(buffer));
};
}).Start();
}
private void OutputReceived(string text)
{
if (OutputReceivedEvent != null)
OutputReceivedEvent(text);
}
public void Input(string input)
{
InterProc.StandardInput.WriteLine(input);
InterProc.StandardInput.Flush();
}
}
