Help me with "connect"

[skipper]

QCheckBox *ledek[64];
    int  ledcounter=0;
    for(int i=0;i<8;i++)
    {
        for(int l=0;l<8;l++)
        {
            ledek[ledcounter]=new QCheckBox(this);
            ledek[ledcounter]->setGeometry(40+(20*i), 60+(20*l), 20, 20);
            ledek[ledcounter]->show();
            MainWindow::connect(ledek[ledcounter], SIGNAL(stateChanged(int)), this, SLOT(kuldes(ledcounter+100)));
            ledcounter++;
        }
    }

QCheckBox *ledek[64];
    int  ledcounter=0;
    for(int i=0;i<8;i++)
    {
        for(int l=0;l<8;l++)
        {
            ledek[ledcounter]=new QCheckBox(this);
            ledek[ledcounter]->setGeometry(40+(20*i), 60+(20*l), 20, 20);
            ledek[ledcounter]->show();
            MainWindow::connect(ledek[ledcounter], SIGNAL(stateChanged(int)), this, SLOT(kuldes(ledcounter+100)));
            ledcounter++;
        }
    }

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there is a problem in the connect line, it says expected token ")" got ";", but it compiles, also it can't connect to the slot, which is a function made by me, it says this: QObject::connect: No such slot MainWindow::kuldes(ledcounter+100) in ../kettodesledmatrix/mainwindow.cpp:32
QObject::connect: (receiver name: 'MainWindow')