c# - 覆盖控制台关闭

Question

我知道 GUI 有

private void Form1_Closing(object sender, System.ComponentModel.EventArgs e)
{
  //do stuff
}

但是我怎样才能在控制台应用程序中做同样的事情呢？

C#/.NET3.5

Answer 1

就是这样：

// Declare the SetConsoleCtrlHandler function
// as external and receiving a delegate.
[DllImport("Kernel32")]
public static extern bool SetConsoleCtrlHandler(HandlerRoutine Handler, bool Add);

// A delegate type to be used as the handler routine
// for SetConsoleCtrlHandler.
public delegate bool HandlerRoutine(CtrlTypes CtrlType);

// An enumerated type for the control messages
// sent to the handler routine.
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)
{
    // Put your own handler here
    return true;
}

...

SetConsoleCtrlHandler(new HandlerRoutine(ConsoleCtrlCheck), true);