C++:程序终止时执行函数

C++: Execute function when program terminates

某些程序在终止时弹出 "Save before exit?" 消息。 我想知道我是否可以使用 C++ 控制台应用程序来实现它。 所以我尝试了一些标准函数,比如 signalatexit.

但它们仅在以下情况下有效:

是啊,怎么样?是否只能使用 GUI 应用程序?

在评论中,您说:

I want exit events to happen when that 'X' button is pressed(On windows). That's part of GUI I guess. Than what kind of request is sent to program when the exit button of the console is pressed?

您可以使用 SetConsoleCtrlHandler() to register a user defined callback function 在控制台 window 关闭时收到 CTRL_CLOSE_EVENT 通知:

A signal that the system sends to all processes attached to a console when the user closes the console (either by clicking Close on the console window's window menu, or by clicking the End Task button command from Task Manager).