如何在没有表单时检测应用程序关闭（控制台应用程序） [英] How to detect application close when no form is present (console application)

问题描述

我一直在想这个问题。

我当前想要一个应用程序来检测它何时被关闭。棘手的是，这个应用程序是一个控制台，这意味着没有窗体关闭事件或类似的方式。

我在谷歌上有一个侦察员，真的只是想出了下面的代码只能检测到关闭，注销，而不是特定的应用程序关闭。

ShutdownEvents代码：

  Imports Microsoft.Win32 
 Module Module1 
 
 Sub Main（）
 AddHandler（SystemEvents.SessionEnding），AddressOf ShutDown.OnShuttingdown 
 AddHandler（SystemEvents.SessionEnded），AddressOf ShutDown.OnShutdown 
 Console.ReadKey（）
 End Sub 
 
 Public Class ShutDown 
 Public Shared Sub OnShuttingdown（ByVal sender As Object ，ByVal e As SessionEndingEventArgs）
 e.Cancel = True'仅在关闭关闭请求时设置
 Console.WriteLine（关闭 - 原因是& e.Reason）
 Console.ReadKey（）
结束Sub 
 
 Public Shared Sub OnShutdown（ByVa l sender As Object，ByVal e As SessionEndedEventArgs）
 Console.WriteLine（Shutdown  -  Reason is& e.Reason）
 Console.ReadKey（）
 End Sub 
 End Class 
 End Module 
  

任何帮助将不胜感激。

问候，

解决方案

您需要创建一个控制台控制处理程序。在 Console 类中没有这样做的功能，但可以调用Windows API函数来完成它。 C＃中的一个示例位于 C＃中检测进程退出控制台应用程序。

您需要阅读并理解 SetConsoleCtrlHandler API函数。

我写了几篇文章多年前关于使用C＃中的Windows控制台API。不幸的是，DevSource似乎已经失去了描述这一点的那个。另外两个可在

http://www.devsource.com/c/a/Using-VS/Working-with-Console-Screen-Buffers-in-NET/

和

http://www.devsource.com/c/a/Using-VS/Console-Input-in-NET/

这些文章中提供的代码的完整源代码可在 http://mischel.com/pubs/consoledotnet.zip 。

I've been wondering about this for a while.

I currently want an application to detect when it is being closed. The tricky thing is, this application is a console one meaning there is no form close event or like-wise.

I had a scout on google and really only came up with the code below which detects only shutting down, logging off and not specifically application closing.

ShutdownEvents Code:

Imports Microsoft.Win32
Module Module1

Sub Main()
    AddHandler (SystemEvents.SessionEnding), AddressOf ShutDown.OnShuttingdown
    AddHandler (SystemEvents.SessionEnded), AddressOf ShutDown.OnShutdown
    Console.ReadKey()
End Sub

Public Class ShutDown
    Public Shared Sub OnShuttingdown(ByVal sender As Object, ByVal e As SessionEndingEventArgs)
        e.Cancel = True 'only set if you turn down the shutdown request
        Console.WriteLine("Shutting down - Reason is " & e.Reason)
        Console.ReadKey()
    End Sub

    Public Shared Sub OnShutdown(ByVal sender As Object, ByVal e As SessionEndedEventArgs)
        Console.WriteLine("Shutdown - Reason is " & e.Reason)
        Console.ReadKey()
    End Sub
End Class
End Module

Any help would be appreciated.

Regards,

解决方案

You need to create a console control handler. There is no facility for doing that in the Console class, but you can call Windows API functions to do it. An example in C# is at Detecting Process Exit From Console Application in C#.

You'll want to read and understand the SetConsoleCtrlHandler API function.

I wrote a couple of articles a few years ago about using the Windows Console API from C#. Unfortunately, DevSource seems to have lost the one that describes this. The other two are available at

http://www.devsource.com/c/a/Using-VS/Working-with-Console-Screen-Buffers-in-NET/

and

http://www.devsource.com/c/a/Using-VS/Console-Input-in-NET/

Full source for the code presented in those articles is available at http://mischel.com/pubs/consoledotnet.zip.

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