[fstream] Brak odczytu

void processSQL( string package[], multiple kuid[] )
{
    CURL * easyhandle = curl_easy_init();
    string url = "http://trainz.kamilm.net/ftp/sqlscripts/id.php?l=";
    url += "pawajoro";
    url += "&p=";
    url += "pass";
    curl_easy_setopt( easyhandle, CURLOPT_URL, url.c_str() );
    std::FILE * file = std::fopen( "C:\\Kuidland\\id.txt", "w" );
    curl_easy_setopt( easyhandle, CURLOPT_WRITEDATA, file );
    curl_easy_perform( easyhandle );
    curl_easy_cleanup( easyhandle );
    fstream plik;
    plik.open( "C:\\Kuidland\\id.txt", ios::in | ios::out );
    if( plik.is_open() )
         cout << "BDB";
   
    string napis;
    getline( plik, napis );
    //getline( plik, napis) ;
    cout << "ID=" << napis;
    getchar();
    plik.close();
    //CURL * easyhandle2 = curl_easy_init();
    //string url = "http://trainz.kamilm.net/ftp/sqlscripts/cdp.php?l="+login+"&p="+pass+"&i="+package [5]+"&o1="+package[8]+"&o2="+package [12]+"&o3="+package [0]+"&o4="+package [1]+"&o5="+package [9]+"&o6="+package [10]+"&o7="+package [11] ;
    //curl_easy_setopt( easyhandle2, CURLOPT_URL, url.c_str() );
    //curl_easy_perform( easyhandle2 );
    //curl_easy_cleanup( easyhandle2 );
    return;
}