我正在尝试,但到目前为止,我发现的所有内容似乎都围绕GUI和表单应用程序展开。这不是我所使用的。
最终它将成为一个服务,但在完成之前,我将其作为普通应用程序运行,问题在于如果我意外关闭它,它会留下另一个服务悬挂长达30分钟,数据不正确。我认为添加一个监听器来捕获应用程序关闭会很容易。
但我就是想不出来。
我正在尝试,但到目前为止,我发现的所有内容似乎都围绕GUI和表单应用程序展开。这不是我所使用的。
最终它将成为一个服务,但在完成之前,我将其作为普通应用程序运行,问题在于如果我意外关闭它,它会留下另一个服务悬挂长达30分钟,数据不正确。我认为添加一个监听器来捕获应用程序关闭会很容易。
但我就是想不出来。
这里有一个完美的解决方案,可以满足您的需求:
该代码可以检测到所有可能导致应用程序关闭的事件:
namespace Detect_Console_Application_Exit2
{
class Program
{
private static bool isclosing = false;
static void Main(string[] args)
{
SetConsoleCtrlHandler(new HandlerRoutine(ConsoleCtrlCheck), true);
Console.WriteLine("CTRL+C,CTRL+BREAK or suppress the application to exit");
while (!isclosing) ;
}
private static bool ConsoleCtrlCheck(CtrlTypes ctrlType)
{
// Put your own handler here
switch (ctrlType)
{
case CtrlTypes.CTRL_C_EVENT:
isclosing = true;
Console.WriteLine("CTRL+C received!");
break;
case CtrlTypes.CTRL_BREAK_EVENT:
isclosing = true;
Console.WriteLine("CTRL+BREAK received!");
break;
case CtrlTypes.CTRL_CLOSE_EVENT:
isclosing = true;
Console.WriteLine("Program being closed!");
break;
case CtrlTypes.CTRL_LOGOFF_EVENT:
case CtrlTypes.CTRL_SHUTDOWN_EVENT:
isclosing = true;
Console.WriteLine("User is logging off!");
break;
}
return true;
}
#region unmanaged
// Declare the SetConsoleCtrlHandler function
// as external and receiving a delegate.
[DllImport("Kernel32")]
public static extern bool SetConsoleCtrlHandler(HandlerRoutine Handler, bool Add);
// A delegate type to be used as the handler routine
// for SetConsoleCtrlHandler.
public delegate bool HandlerRoutine(CtrlTypes CtrlType);
// An enumerated type for the control messages
// sent to the handler routine.
public enum CtrlTypes
{
CTRL_C_EVENT = 0,
CTRL_BREAK_EVENT,
CTRL_CLOSE_EVENT,
CTRL_LOGOFF_EVENT = 5,
CTRL_SHUTDOWN_EVENT
}
#endregion
}
}
[编辑] 这是从上面链接的修改版本。
注意: 如果用户单击红色X关闭控制台窗口,则在应用程序被终止之前,您有非常有限的时间来作出响应! 如果运行以下程序,请查看消息框在终止之前显示了多长时间。
using System;
using System.Runtime.InteropServices;
using System.Threading;
using System.Windows.Forms;
namespace Demo
{
class Program
{
static void Main(string[] args)
{
SetConsoleCtrlHandler(ConsoleCtrlCheck, true);
Console.WriteLine("CTRL+C,CTRL+BREAK or suppress the application to exit");
while (!isclosing)
{
Thread.Sleep(1000);
}
}
private static bool ConsoleCtrlCheck(CtrlTypes ctrlType)
{
// Put your own handling here:
switch (ctrlType)
{
case CtrlTypes.CTRL_C_EVENT:
isclosing = true;
Console.WriteLine("CTRL+C received!");
break;
case CtrlTypes.CTRL_BREAK_EVENT:
isclosing = true;
Console.WriteLine("CTRL+BREAK received!");
break;
case CtrlTypes.CTRL_CLOSE_EVENT:
isclosing = true;
Console.WriteLine("Program being closed!");
MessageBox.Show("AHA!");
break;
case CtrlTypes.CTRL_LOGOFF_EVENT:
case CtrlTypes.CTRL_SHUTDOWN_EVENT:
isclosing = true;
Console.WriteLine("User is logging off!");
break;
}
return true;
}
#region unmanaged
// Declare the SetConsoleCtrlHandler function as external and receiving a delegate.
[DllImport("Kernel32")]
public static extern bool SetConsoleCtrlHandler(HandlerRoutine Handler, bool Add);
// A delegate type to be used as the handler routine for SetConsoleCtrlHandler.
public delegate bool HandlerRoutine(CtrlTypes CtrlType);
// An enumerated type for the control messages sent to the handler routine.
public enum CtrlTypes
{
CTRL_C_EVENT = 0,
CTRL_BREAK_EVENT,
CTRL_CLOSE_EVENT,
CTRL_LOGOFF_EVENT = 5,
CTRL_SHUTDOWN_EVENT
}
#endregion
private static bool isclosing;
}
}
如果要在应用程序内处理事件,
如果是 Windows 服务,可以使用 ServiceBase.OnStop
如果是 WCF 服务,可以使用 ServiceHost.Closed 事件。ServiceHost 从 Communication Host 继承 Closed(和相关事件)
如果要在单独的应用程序中处理事件,可以使用 Process.Exited 事件。
var serviceProcesses = Process.GetProcessesByName("service.exe");
if(serviceProcesses != null && serviceProcesses.Length>0)
{
serviceProcesses[0].Exited += OnServiceClosed;
}
AppDomain.CurrentDomain.ProcessExit
事件?