Unable to get window text

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Diagnostics;

namespace MW2KICKER
{

    public partial class MW2KICKER : Form
    {
        [DllImport("user32.dll", EntryPoint = "FindWindow", CharSet = CharSet.Ansi)]
        public static extern IntPtr FindWindow(string className, string windowName);
        [DllImport("user32.dll", SetLastError = true)]
        public static extern IntPtr FindWindowEx(IntPtr parentHandle, IntPtr childAfter, string className, IntPtr windowTitle);
        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        private static extern int SendMessage(IntPtr hwnd, int msg, int wParam, StringBuilder sb);
        [DllImport("User32.Dll", EntryPoint = "PostMessageA")]
        public static extern bool PostMessage(IntPtr hWnd, uint msg, int wParam, IntPtr lParam);


        public const int WM_SETTEXT = 0x000C;
        public const int VK_RETURN = 0x0D;
        public const int WM_KEYDOWN = 0x100;
        public const int WM_KEYUP = 0x101;
        public const int WM_GETTEXTLENGTH = 0x000E;
        public const int GW_CHILD = 5;
        public const int GW_HWNDNEXT = 2;
        public const int WM_GETTEXT = 0x000D; 

        public MW2KICKER()
        {
            InitializeComponent();
            
        }

        public void Status()
        {
            //Find the console edit box aswell as send the status command.
            tbData.Refresh();
            string message = "status";
            StringBuilder sb = new StringBuilder(message);
            IntPtr MW4CONSOLE = FindWindow("IW4 WinConsole", null);
            IntPtr MW4EDIT = FindWindowEx(MW4CONSOLE, IntPtr.Zero, "Edit", IntPtr.Zero);
            IntPtr MW4TEXT = FindWindowEx(MW4CONSOLE, MW4EDIT, "Edit", IntPtr.Zero);

            switch ((int)(MW4CONSOLE) == 0 == false)
            {
                case true:
                    SendMessage(MW4EDIT, WM_SETTEXT, 0, sb);
                    PostMessage(MW4EDIT, WM_KEYDOWN, VK_RETURN, IntPtr.Zero);
                    PostMessage(MW4EDIT, WM_KEYUP, VK_RETURN, IntPtr.Zero);

                    //Get the console text and wait for response.
                    System.Threading.Thread.Sleep(1000);
                    int length = SendMessage(MW4TEXT, WM_GETTEXTLENGTH, 0, null);
                    StringBuilder sbtext = new StringBuilder(length + 1);
                    SendMessage(MW4TEXT, WM_GETTEXT, sbtext.Capacity, sbtext);
                    tbData.Text = sbtext.ToString();
                    lbUserNames.Items.Add(sbtext.ToString());
                    break;

                case false:
                    MessageBox.Show("No Modern Warfare 2 console was found!");
                    break;
            }
        }

        private void bStatus_Click(object sender, EventArgs e)
        {
            Status();
        }
    }
}