document/WINAPI SetConsoleCtrlHandler.txt at master · Stone-Han/document · GitHub

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CtrlCloseEvent是有超时机制的，5秒钟。因此sleep（20000）还是会5秒钟关闭。不管在SystemPause前面还是后面都不管用。
但是如果在switch分辨消息前面加上处理语句，在按下ctrl+c的时候显示enter，然后sleep10秒，然后才显示22222，和Ctrl+c event。
所以在处理收尾数据的时候可以先处理然后再对消息进行响应。

#include "stdafx.h"
#include <iostream>
#include <windows.h>

using namespace std;

BOOL CtrlHandler( DWORD fdwCtrlType );

int main(int argc, char** argv)
{
	if( SetConsoleCtrlHandler( (PHANDLER_ROUTINE) CtrlHandler, TRUE ) )
	{

		cout << "Control Handler is installed" << endl;
		cout << " Ctrl+C, Ctrl+Break, logging off or closing console NOW intercepted." << endl;
		cout << " ... into message loop.\n" << endl;
		while( 1 ){ }

	}
	else
		cout << "Control handler setting failed...." << endl;
	return 0;
}

BOOL CtrlHandler( DWORD fdwCtrlType )
{
	cout<<"enter"<<endl;
	Sleep(10000);
	cout<<"222222"<<endl;
	switch( fdwCtrlType )
	switch( fdwCtrlType )
	{
	case CTRL_C_EVENT:
		printf( "Ctrl-C event\n\n" );
		Sleep(10000);
		cout<<"sleepover"<<endl;
		return( TRUE );

	case CTRL_CLOSE_EVENT:
		printf( "Ctrl-Close event\n\n" );
		Sleep(20000);
		system("pause");
		return( TRUE );

	case CTRL_BREAK_EVENT:
		printf( "Ctrl-Break event\n\n" );
		return FALSE; // pass thru, let the system to handle the event.

	case CTRL_LOGOFF_EVENT:
		printf( "Ctrl-Logoff event\n\n" );
		return FALSE; // pass thru, let the system to handle the event.

	case CTRL_SHUTDOWN_EVENT:
		printf( "Ctrl-Shutdown event\n\n" );
		return FALSE; // pass thru, let the system to handle the event.

	default:
		return FALSE;
	}
}