setNum() digits question

[tommy]

I am using a QLabel to display a number which ia a double.


void QLabel::setNum ( double num )

I don't want so many significant digits. How do I cut the number of significant digits?
I want 1.2345678 to display as 1.23

[marcel]

QString s;
s = s.setNum(1.2345678, 'g', 2);
label->setText(s);