C / C++ / MFC

int main( int argc, char* argv[] )
{
	HANDLE h = ::FindFirstChangeNotification( "d:\\test\\magnus", FALSE, FILE_NOTIFY_CHANGE_FILE_NAME );
	if( h == INVALID_HANDLE_VALUE )
	{
		std::cout << "Error on FFCN: " << ::GetLastError() << std::endl;
		return 0;
	}


	std::cout << "Entering loop" << std::endl;

	for( ;; )
	{
		DWORD dwWaitState = ::WaitForSingleObject( h, INFINITE );
		switch( dwWaitState )
		{
		case WAIT_OBJECT_0:
			std::cout << "Something happened" << std::endl;
			break;
		case WAIT_ABANDONED:
			std::cout << "Error WAIT_ABANDONED" << std::endl;
			break;
		case WAIT_TIMEOUT:
			std::cout << "Error WAIT_TIMEOUT" << std::endl;
			break;
		default:
			std::cout << "Error DEFAULT" << std::endl;
			break;
		}

		if( dwWaitState != WAIT_OBJECT_0 )
			break;

		if( ::FindNextChangeNotification( h ) == 0 )
		{
			std::cout << "Error on FNCN: " << ::GetLastError() << std::endl;
			break;
		}
	}

	::FindCloseChangeNotification( h );
	return 0;
}