[No000090]C#捕获控制台(console)关闭事件及响应cmd快捷键

Posted 2020-08-25 文 武

捕获控制台(console)关闭事件：

1.Ctrl+C信号；

2.Ctrl+Break信号；

3.用户系统关闭Console时；

4.用户退出系统时；

5.系统将要关闭时；

using System;
using System.Runtime.InteropServices;
using System.Threading;
using System.Diagnostics;

namespace ConsoleApplication2
{
    public delegate bool ConsoleCtrlDelegate(int dwCtrlType);
    class Program
    {
        [DllImport("kernel32.dll")]
        private static extern bool SetConsoleCtrlHandler(ConsoleCtrlDelegate handlerRoutine, bool add);

        private const int CtrlCEvent = 0;//CTRL_C_EVENT = 0;//一个Ctrl+C的信号被接收，该信号或来自键盘，或来自GenerateConsoleCtrlEvent    函数   

        private const int CtrlBreakEvent = 1;//CTRL_BREAK_EVENT = 1;//一个Ctrl+Break信号被接收，该信号或来自键盘，或来自GenerateConsoleCtrlEvent    函数  

        private const int CtrlCloseEvent = 2;//CTRL_CLOSE_EVENT = 2;//当用户系统关闭Console时，系统会发送此信号到此   

        private const int CtrlLogoffEvent = 5;//CTRL_LOGOFF_EVENT = 5;//当用户退出系统时系统会发送这个信号给所有的Console程序。该信号不能显示是哪个用户退出。   

        private const int CtrlShutdownEvent = 6;//CTRL_SHUTDOWN_EVENT = 6;//当系统将要关闭时会发送此信号到所有Console程序   
        [STAThread]
        static void Main(string[] args)
        {
            //    TODO:    在此处添加代码以启动应用程序   
            Program cl = new Program();
        }

        public Program()
        {
            if (SetConsoleCtrlHandler(new ConsoleCtrlDelegate(HandlerRoutine), true))
            {
                Console.WriteLine("Set    SetConsoleCtrlHandler    success!!");
            }
            else
            {
                Debug.WriteLine("Set    SetConsoleCtrlHandler    Error!!");
                //AsReportFile.WriteFile("", "test.txt", "who close?");
            }
            Console.ReadLine();

        }

        bool HandlerRoutine(int ctrlType)
        {
            Console.WriteLine("Set    SetConsoleCtrlHandler    success!!");
            Console.WriteLine("Set    SetConsoleCtrlHandler    success!!");
            Console.WriteLine("Set    SetConsoleCtrlHandler    success!!");
            Console.WriteLine("Set    SetConsoleCtrlHandler    success!!");
            Console.WriteLine("Set    SetConsoleCtrlHandler    success!!");
            Console.WriteLine("Set    SetConsoleCtrlHandler    success!!");
            Console.WriteLine("Set    SetConsoleCtrlHandler    success!!");


            switch (ctrlType)
            {
                case CtrlCEvent: System.Console.WriteLine("Ctrl+C keydown"); break;

                case CtrlBreakEvent: System.Console.WriteLine("Ctrl+Break keydown"); break;

                case CtrlCloseEvent: System.Console.WriteLine("window closed"); break;

                case CtrlLogoffEvent: System.Console.WriteLine("log off or shut down"); break;

                case CtrlShutdownEvent: System.Console.WriteLine("system shut down"); break;

                default: System.Console.WriteLine(ctrlType.ToString()); break;
            }
            for (int i = 0; i < 10; i++)
            {
                Console.WriteLine("i    is:{0}", i);
                Thread.Sleep(1000);
            }
            return false;
        }
    }
}