控制台程序控制关闭按钮以及手动退出

　class Program
    {

       [DllImport("user32.dll", EntryPoint = "FindWindow")]
        extern static IntPtr FindWindow(string lpClassName, string lpWindowName);
        [DllImport("user32.dll", EntryPoint = "GetSystemMenu")]
        extern static IntPtr GetSystemMenu(IntPtr hWnd, IntPtr bRevert);
        [DllImport("user32.dll", EntryPoint = "RemoveMenu")]
        extern static IntPtr RemoveMenu(IntPtr hMenu, uint uPosition, uint uFlags);

        /// <summary>
        /// 禁用关闭按钮
        /// </summary>
        static void closebtn()
        {
            IntPtr windowHandle = FindWindow(null, "test");
            IntPtr closeMenu = GetSystemMenu(windowHandle, IntPtr.Zero);
            uint SC_CLOSE = 0xF060;
            RemoveMenu(closeMenu, SC_CLOSE, 0x0);
        }

        static void Main(string[] args)
        {
            Console.Title = "test";
            closebtn();
            Console.CancelKeyPress += new ConsoleCancelEventHandler(CloseConsole);
            Console.WriteLine("Starting...");

            Console.WriteLine("退出请按 Ctrl+C ");

　　  }

        /// <summary>  
        /// 关闭时的事件  
        /// </summary>  
        /// <param name="sender">对象</param>  
        /// <param name="e">参数</param>  
        protected static void CloseConsole(object sender, ConsoleCancelEventArgs e)
        {
            Environment.Exit(0);
            //return;
        }

    }

本文参考 http://blog.csdn.net/ansencumt/archive/2010/02/04/5287805.aspx