Font size increase in QtableWidget

[sosanjay]

Hi,

I want to increase the font size of the QTableWidget.

QFont fnt;
        fnt.setPointSize(30);
        fnt.setFamily("Arial");
ui->tableWidget->setFont(fnt);

QFont fnt;
        fnt.setPointSize(30);
        fnt.setFamily("Arial");
ui->tableWidget->setFont(fnt);

To copy to clipboard, switch view to plain text mode 

Can anyone suggest me Why it is not working?

Is setPointSize(30) is correct for font size or any other options.