Need to send the command to embedded Command Prompt in C#

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Diagnostics;
using System.IO;
using System.Threading;

namespace picBoxApp
{
    /// <summary>
    /// Description of MainForm.
    /// </summary>
    public partial class MainForm : Form
    {
        public MainForm()
        {
            //
            // The InitializeComponent() call is required for Windows Forms designer support.
            //
            InitializeComponent();

            //
            // TODO: Add constructor code after the InitializeComponent() call.
            //
            // Killing a process
            // Process p= Process.GetProcessById(PID);
            // p.Kill();

        }

        private void timer1_Tick(object sender, EventArgs e)
        //void Timer1Tick(object sender, EventArgs e)
        {
            System.IntPtr winParent;
            System.IntPtr x;
            System.IntPtr winHandle = Usr32.FindWin("ConsoleWindowClass", "MY OWN CONSOLE");
            if (winHandle != System.IntPtr.Zero)
            {
                winParent = Usr32.GetParent(winHandle);
                x = Usr32.SetParent(winHandle, this.pictureBox1.Handle);
                x = Usr32.SetWindowPos(winHandle, 0, -5, -35, 649, 555, 0);
                this.timer1.Enabled = false;
            }
        }

        private void exit_Click(object sender, EventArgs e)
        //void BtnExitClick(object sender, EventArgs e)
        {
            //System.Diagnostics.Process.GetProcessById
            //this.timer1.Enabled = false;
            if (Usr32.MYCMDPID != 0)
            {
                try
                {
                    System.Diagnostics.Process p = System.Diagnostics.Process.GetProcessById(Usr32.MYCMDPID);
                    if (p != null)
                    {
                        p.Kill();
                    }
                }
                catch
                {
                    //MessageBox.Show("Process terminated Abnormally", "Error", 200);
                }
            }
            Application.Exit();


        }

        private void Start_Click(object sender, EventArgs e)
       //void BtnStartClick(object sender, System.EventArgs e)
        {
            //MessageBox.Show("Hello World", "Hello");
            //string cmd1 = "generate business card";
            //MessageBox.Show (cmd1 , "Command One");
            //string pid;

            //uint pid;
            //CmdWindow pid = new CmdWindow();

            if (Usr32.MYCMDPID != 0)
            {
                try
                {
                    System.Diagnostics.Process p = System.Diagnostics.Process.GetProcessById(Usr32.MYCMDPID);
                    if (p != null)
                    {
                        p.Kill(

      );
                    }
                }
                catch
                {
                    //MessageBox.Show("Starting a new Process!", "Error");
                }
            }
            Process mycmd = new Process();
            mycmd.StartInfo.UseShellExecute = false;
            mycmd.StartInfo.Arguments += " /K TITLE MY OWN CONSOLE";
            mycmd.StartInfo.FileName = "cmd.exe";
            mycmd.StartInfo.CreateNoWindow = false;
  
            //Thread.Sleep(100);
            //SendKeys.Send("CD \\Twidl {Enter}");
            //Thread.Sleep(100);
            //SendKeys.Send("cls {Enter}");
            //Thread.Sleep(100);
            //SendKeys.Send("twidl.bat {Enter}");
            //mycmd.StartInfo.ErrorDialog = false;
            //mycmd.StartInfo.RedirectStandardError = true;
            //mycmd.StartInfo.RedirectStandardInput = true;
            //mycmd.StartInfo.RedirectStandardOutput = true;
            //mycmd.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
            // Do not show command prompt window separately
            //psi.CreateNoWindow = true;
            //psi.WindowStyle = ProcessWindowStyle.Hidden;
            //redirect all standard inout to program


            mycmd.Start();

            this.timer1.Enabled = true;
            //mycmd.Close();
            //MessageBox.Show("Process Id : " + bob.Id + " and Process Name : " + bob.ProcessName , "Process Details");
            //link the streams to standard inout of process
            //StreamWriter inputWriter = mycmd.StandardInput;
            //StreamReader outputReader = mycmd.StandardOutput;
            //StreamReader errorReader = mycmd.StandardError;
            //send command to cmd prompt and wait for command to execute with thread sleep
            //inputWriter.WriteLine("DIR\r\n");

            Usr32.MYCMDPID = mycmd.Id;



        }
        private void cmd_Click(object sender, EventArgs e)
        //void BtnCommandClick(object sender, System.EventArgs e)
        {

            Process p = Process.GetProcessById(Usr32.MYCMDPID);
            //Process p = Process.GetWindow(Usr32.MYCMDPID);
            IntPtr pid;
            pid = p.Handle;
            Usr32.SetForegroundWindow(pid);
            Thread.Sleep(300);
            SendKeys.Send("DIR \r\n");
            //SendKeys.Send("CD \\Twidl {Enter}");
            //Thread.Sleep(800);
            //SendKeys.Send("twidl.bat {Enter}");
        }

        
   
        //void BtnAttachConsoleClick(object sender, EventArgs e)
        private void attachpic_Click(object sender, EventArgs e)
        {
            this.timer1.Enabled = true;
        }

        private void chkBoxConsole_CheckedChanged(object sender, EventArgs e)
        {
            string mytitle;
            if (chkBoxConsole.Checked)
            {
                mytitle = "MY CONSOLE";
                Usr32.AllocConsole();
                System.Console.Title = mytitle;


            }
            else
                Usr32.FreeConsole();
        }

        
  
    }
    public class Usr32
    {
        #region Class Variables
        public const int SM_CXSCREEN = 0;
        public const int SM_CYSCREEN = 0;
        public static int MYCMDPID = 0;
        #endregion

        #region Class Functions
        [DllImport("user32.dll", EntryPoint = "FindWindow")]
        public static extern IntPtr FindWin(string lpClassName, string lpWindowName);

        [DllImport("user32.dll", EntryPoint = "SetParent")]
        public static extern IntPtr SetParent(IntPtr hWndChild, IntPtr hWndNewParent);

        [DllImport("user32.dll", EntryPoint = "GetParent")]
        public static extern IntPtr GetParent(IntPtr hWnd);

        [DllImport("user32.dll", EntryPoint = "SetWindowPos")]
        public static extern IntPtr SetWindowPos(IntPtr hWnd, int hWndInsertAfter, int x, int Y, int cx, int cy, int wFlags);

        [DllImport("user32.dll", EntryPoint = "ShowWindow")]
        public static extern IntPtr ShowWindow(IntPtr hWnd, long nCmdShow);

        [DllImport("user32.dll", EntryPoint = "CloseWindow")]
        public static extern IntPtr CloseWindow(IntPtr hWnd);

        [DllImport("user32.dll", EntryPoint = "DestroyWindow")]
        public static extern IntPtr DestroyWindow(IntPtr hWnd);

        [DllImport("User32.dll")]
        public static extern int SetForegroundWindow(IntPtr hwnd);

        [DllImport("user32.dll")]
        public static extern uint SendMessage(IntPtr hWnd, uint nMessage, uint wParam, uint lParam);

        [DllImport("user32.dll")]
        public static extern uint PostMessage(IntPtr hWnd, uint nMessage, uint wParam, uint lParam);

        // my lines below are needed to make the console window visible

        [DllImport("kernel32.dll")]
        public static extern Boolean AllocConsole();

        [DllImport("kernel32.dll")]
        public static extern Boolean FreeConsole();


        #endregion
    }



}