当关闭c ++控制台应用程序时会发生什么 [英] What happens when you close a c++ console application

问题描述

我猜这个问题说的一切，但是，如果有人关闭一个c ++控制台应用程序会发生什么？按住，点击顶部角落的x。它立即关闭？它会抛出一些异常吗？是否未定义行为？

I guess the question says it all, but, what happens if someone closes a c++ console app? As in, clicks the "x" in the top corner. Does it instantly close? Does it throw some sort of exception? Is it undefined behavior?

推荐答案

关闭一个c ++控制台应用程序，顶部的x会抛出 CTRL_CLOSE_EVENT ，如果您使用 SetConsoleCtrlHandler 函数。在这里你可以覆盖关闭功能，并执行任何你想做的，然后可选择地仍然执行默认行为。

Closing a c++ console app with the "x" in the top corner throws an CTRL_CLOSE_EVENT which you could catch and process if you set a control handler using the SetConsoleCtrlHandler function. In there you could override the close functionality and perform whatever you wished to do, and then optionally still perform the default behavior.

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