BOOL WINAPI ConsoleHandler(DWORD CEvent)
{
char mesg[128];
switch(CEvent)
{
case CTRL_C_EVENT:
MessageBox(NULL,
"CTRL+C received!","CEvent",MB_OK);
break;
case CTRL_BREAK_EVENT:
MessageBox(NULL,
"CTRL+BREAK received!","CEvent",MB_OK);
break;
case CTRL_CLOSE_EVENT:
MessageBox(NULL,
"Program being closed!","CEvent",MB_OK);
break;
case CTRL_LOGOFF_EVENT:
MessageBox(NULL,
"User is logging off!","CEvent",MB_OK);
break;
case CTRL_SHUTDOWN_EVENT:
MessageBox(NULL,
"User is logging off!","CEvent",MB_OK);
break;
}
return TRUE;
}
好,现在已经有了回调函数,再来看看怎么安装钩子:
if (SetConsoleCtrlHandler(
(PHANDLER_ROUTINE)ConsoleHandler,TRUE)==FALSE)
{
// unable to install handler...
// display message to the user
printf("Unable to install handler!\n");
return -1;
}