sending amount of variable into button func

[ramin.lich]

Hi,
let say i have signal like this

void MainWindow::on_Next_clicked()
{
    if(xy<=Ewords){
    getData(sfile);
    xy++;
    }
    else{
        restartApp();
    }
 
}

void MainWindow::on_Next_clicked()
{
    if(xy<=Ewords){
    getData(sfile);
    xy++;
    }
    else{
        restartApp();
    }

}

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and this

void MainWindow::on_mean_clicked()
{
 
    QMessageBox msg;
    msg.setText("over here");
    msg.exec();
}

void MainWindow::on_mean_clicked()
{

    QMessageBox msg;
    msg.setText("over here");
    msg.exec();
}

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now i want to send amount of xy every time i click on next button (on_Next_clicked) without calling mean button(on_mean_clicked)
i will be grateful for help.