如何处理Visual Studio C ++中的访问冲突？ [英] How can I handle an access violation in Visual Studio C++?

问题描述

通常，访问冲突终止程序，我无法使用 try 和 catch 捕获Win32异常。有没有办法让我的程序运行，即使在访问冲突的情况下呢？最好我想处理这个异常并向用户显示发生访问冲突。

Usually an access violation terminates the program and I cannot catch a Win32 exception using try and catch. Is there a way I can keep my program running, even in case of an access violation? Preferably I would like to handle the exception and show to the user an access violation occurred.

编辑：我希望我的程序非常强大，甚至编程错误。我真的想避免的是一个程序终止，即使是一些损坏的状态的代价。

I want my program to be really robust, even against programming errors. The thing I really want to avoid is a program termination even at the cost of some corrupted state.

推荐答案

在Windows中，这称为结构化异常处理（SEH）。详情请见：

In Windows, this is called Structured Exception Handling (SEH). For details, see here:

http://msdn.microsoft.com/en-us/library/windows/desktop/ms680657%28v=vs.85%29.aspx

实际上，当发生异常时，您可以注册获取回调。您不能为此出现任何异常，显而易见的原因。

In effect, you can register to get a callback when an exception happens. You can't do this to every exception for obvious reasons.

使用SEH，您可以检测到很多异常，包括访问冲突，但不是全部（例如双堆栈故障）。即使可以检测到异常，除非例外，否则无法确保100％的稳定性。但是，通知用户可能已经足够了，记录错误，将消息发回服务器，并正常退出。

Using SEH, you can detect a lot of exceptions, access violations included, but not all (e.g. double stack fault). Even with the exceptions that are detectable, there is no way to ensure 100% stability after the exception. However, it may be enough to inform the user, log the error, send a message back to the server, and gracefully exit.

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