c# – 如何使用SetConsoleHandler()来阻止退出调用

我知道如果我想管理控制台关闭事件,我必须使用setconsolehandler().

我不知道如何阻止CTRL_CLOSE_EVENT.如果它捕获了那个事件,我尝试返回false / true,但没有成功

这是我到目前为止(感谢Anton Gogolev！)

[DllImport("Kernel32")]
public static extern bool SetConsoleCtrlHandler(HandlerRoutine Handler, bool Add);

public delegate bool HandlerRoutine(CtrlTypes CtrlType);

public enum CtrlTypes{
    CTRL_C_EVENT = 0,
    CTRL_BREAK_EVENT,
    CTRL_CLOSE_EVENT,
    CTRL_LOGOFF_EVENT = 5,
    CTRL_SHUTDOWN_EVENT
}

private static bool ConsoleCtrlCheck(CtrlTypes ctrlType)
{ 
    if(ctrlType == CtrlTypes.CTRL_CLOSE_EVENT)
        return false;// I have tried true and false and viceversa with the return   
                     // true/false but I cant seem to get it right.
    return true;
}


//and then I use this to call it
SetConsoleCtrlHandler(new HandlerRoutine(ConsoleCtrlCheck), true);

还有可能运行一个新线程来监视控制台是否正在关闭,如果主线程正在做某事,阻止关闭？

SetConsoleCtrlHandler()的文档说：

The system generates CTRL_CLOSE_EVENT, CTRL_LOGOFF_EVENT, and CTRL_SHUTDOWN_EVENT signals when the user closes the console, logs off, or shuts down the system so that the process has an opportunity to clean up before termination.

这意味着与处理CTRL C或CTRL BREAK事件不同,您的进程无法取消关闭,注销或关闭.