.NET 控制台应用程序退出事件
在 .NET 中,是否有一种方法(例如事件)用于检测控制台应用程序何时退出? 我需要清理一些线程和 COM 对象。
我正在从控制台应用程序运行一个没有表单的消息循环。 我正在使用的 DCOM 组件似乎要求应用程序泵送消息。
我尝试向 Process.GetCurrentProcess.Exited 和 Process.GetCurrentProcess.Dispose 添加处理程序。
我还尝试向 Application.ApplicationExit 和 Application.ThreadExit 事件添加处理程序,但它们没有触发。 也许这是因为我没有使用表格。
In .NET, is there a method, such as an event, for detecting when a console application is exiting? I need to clean up some threads and COM objects.
I am running a message loop, without a form, from the console application. A DCOM component that I am using seems to require that the application pump messages.
I have tried adding a handler to Process.GetCurrentProcess.Exited and Process.GetCurrentProcess.Disposed.
I have also tried adding a handler to Application.ApplicationExit and Application.ThreadExit events, but they are not firing. Perhaps that is because I am not using a form.
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您可以使用
ProcessExit
AppDomain
的事件:更新
这是一个完整的示例程序,其中一个空的“消息泵”在单独的线程上运行,允许用户在控制台中输入退出命令以正常关闭应用程序。 在 MessagePump 中的循环之后,您可能希望以良好的方式清理线程使用的资源。 这样做比在 ProcessExit 中更好,原因如下:
这是代码:
You can use the
ProcessExit
event of theAppDomain
:Update
Here is a full example program with an empty "message pump" running on a separate thread, that allows the user to input a quit command in the console to close down the application gracefully. After the loop in MessagePump you will probably want to clean up resources used by the thread in a nice manner. It's better to do that there than in ProcessExit for several reasons:
Here is the code:
这是一个完整、非常简单的 .NET 解决方案,适用于所有版本的 Windows。 只需将其粘贴到一个新项目中,运行它并尝试 Ctrl + C 来查看它是如何处理的:
Here is a complete, very simple .NET solution that works in all versions of Windows. Simply paste it into a new project, run it and try Ctrl + C to view how it handles it:
该应用程序是一个服务器,它只是运行直到系统关闭或收到 Ctrl + C 或控制台窗口关闭为止。
由于应用程序的特殊性,“优雅”退出是不可行的。 (我可能可以编写另一个应用程序来发送“服务器关闭”消息,但这对于一个应用程序来说有点过大,并且对于某些情况(例如服务器(实际上是操作系统)实际关闭时)仍然不够。)
由于这些情况,我添加了一个“ConsoleCtrlHandler”,我在其中停止我的线程并清理我的 COM 对象等...
这个设置似乎运行得很完美。 这是 指向相同内容的一些 C# 代码的链接。
The application is a server which simply runs until the system shuts down or it receives a Ctrl + C or the console window is closed.
Due to the extraordinary nature of the application, it is not feasible to "gracefully" exit. (It may be that I could code another application which would send a "server shutdown" message, but that would be overkill for one application and still insufficient for certain circumstances like when the server (actually the operating system) is actually shutting down.)
Because of these circumstances I added a "ConsoleCtrlHandler" where I stop my threads and clean up my COM objects, etc...
This setup seems to work out perfectly. Here is a link to some C# code for the same thing.
对于 CTRL+C 情况,您可以使用以下命令:
For the CTRL+C case, you can use this:
如果您使用控制台应用程序并且正在泵送消息,则可以使用 WM_QUIT 消息。
If you are using a console application and you are pumping messages, you may be able use the WM_QUIT message.
基于@user79755解决方案的最小版本:
Minimal version based on @user79755 solution :