Can we work together to come up with something that works for control-c, control-break, log off, window X button pressed, etc?
Here is what I have so far:
class Program
{
private static ConsoleEventHandlerDelegate consoleHandler;
delegate bool ConsoleEventHandlerDelegate(CtrlTypes eventCode);
static void Main(string[] args)
{
consoleHandler = new ConsoleEventHandlerDelegate(ConsoleCtrlCheck);
SetConsoleCtrlHandler(consoleHandler, true);
System.Diagnostics.Process.GetCurrentProcess().Exited
+= delegate(object sender, EventArgs e)
{
GeneralManager.Stop();
};
Console.CancelKeyPress += delegate(object sender,
ConsoleCancelEventArgs e)
{
e.Cancel = false;
GeneralManager.Stop();
};
GeneralManager.Start();
}
private static bool ConsoleCtrlCheck(CtrlTypes ctrlType)
{
switch (ctrlType)
{
case CtrlTypes.CTRL_C_EVENT:
Console.WriteLine("CTRL+C received!");
GeneralManager.Stop();
break;
case CtrlTypes.CTRL_BREAK_EVENT:
isclosing = true;
Console.WriteLine("CTRL+BREAK received!");
GeneralManager.Stop();
break;
case CtrlTypes.CTRL_CLOSE_EVENT:
Console.WriteLine("Program being closed!");
GeneralManager.Stop();
break;
case CtrlTypes.CTRL_LOGOFF_EVENT:
case CtrlTypes.CTRL_SHUTDOWN_EVENT:
Console.WriteLine("User is logging off!");
GeneralManager.Stop();
break;
}
return true;
}
#region unmanaged
[DllImport("kernel32.dll")]
static extern bool SetConsoleCtrlHandler(ConsoleEventHandlerDelegate
handlerProc, 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
}
#endregion
}
Two problems:
In the Managed Control-Break handler, if we set
e.Cancel = trueit fails with an exception for .Net4. This is noted in the MSDN article with no work-around: http://msdn.microsoft.com/en-us/library/system.consolecanceleventargs.cancel.aspxI don't know how to cancel the close in the
ConsoleCtrlCheck. I get a second or two to do some cleanup, but I'd rather cancel and make sure it all gets done properly.
UPDATE:
Thanks for the replies. Upvoted both. Will wait to see if anyone can come up with a reply that directly solves what I asked for, otherwise will accept one of the "use NT services" answers.
