Creating Real-Time Input & Output Stream To Command Prompt in C#

To create a real-time input and output stream to the command prompt in C#, you can use the Process class from the System.Diagnostics namespace. Here's an example:

csharpCopy code
using System;

using System.Diagnostics;



class Program

{

    static void Main()

    {

        // Create a new ProcessStartInfo object

        ProcessStartInfo startInfo = new ProcessStartInfo

        {

            FileName = "cmd.exe",

            RedirectStandardInput = true,

            RedirectStandardOutput = true,

            UseShellExecute = false,

            CreateNoWindow = true

        };



        // Create a new Process object with the specified start info

        Process cmdProcess = new Process

        {

            StartInfo = startInfo

        };



        // Start the process

        cmdProcess.Start();



        // Get the input and output streams

        StreamWriter inputStream = cmdProcess.StandardInput;

        StreamReader outputStream = cmdProcess.StandardOutput;



        // Write to the command prompt

        inputStream.WriteLine("echo Hello, Command Prompt!");

        inputStream.WriteLine("dir");



        // Read and display the output

        string output = outputStream.ReadToEnd();

        Console.WriteLine(output);



        // Close the streams and wait for the process to exit

        inputStream.Close();

        outputStream.Close();

        cmdProcess.WaitForExit();

    }

}

In this example, we create a new ProcessStartInfo object with the necessary configuration, specifying that we want to redirect the standard input and output streams. We then create a Process object with the ProcessStartInfo, start the process, and obtain the input and output streams using StandardInput and StandardOutput.

We can then write commands to the command prompt by writing to the inputStream, read the output from the outputStream, and display it.

Finally, we close the input and output streams and wait for the process to exit.

Please note that this code snippet assumes you're running it in a console application and that you have appropriate permissions to execute cmd.exe.