using System;

using System.Diagnostics;

using System.Runtime.InteropServices;

​

namespace Remove__X__Button_from_another_process

{

​

class Program

{

    [DllImport("user32.dll")]

    static extern IntPtr GetSystemMenu(IntPtr hWnd, bool bRevert);

​

    [DllImport("user32.dll")]

    static extern bool DeleteMenu(IntPtr hMenu, uint uPosition, uint uFlags);

​

    const uint SC_CLOSE = 0xF060;

    const uint MF_BYCOMMAND = 0x00000000;

​

    static void Main(string[] args)

    {

        //Console.Write("Please enter process name:"); // "cmd"

        //String process_name = Console.ReadLine();

​

        Process[] processes = Process.GetProcessesByName("cmd");

        foreach (Process p in processes)

        {

            IntPtr pFoundWindow = p.MainWindowHandle;

​

            IntPtr nSysMenu = GetSystemMenu(pFoundWindow, false);

            if (nSysMenu != IntPtr.Zero)

            {

                if (DeleteMenu(nSysMenu, SC_CLOSE, MF_BYCOMMAND))

                {

​

                }

            }

        }

        Environment.Exit(0);

    }

  }

​

}