QText, how to only change font family?

[anda_skoa]

You are creating a new font object as setFont() takes on of these.

If you only want to modify one property of a font, you first retrieve the current font object, the modify the value you want to change and then set the modified object back on the widget.

QFont font = widget->font();
// modify font
widget->setFont(font);

QFont font = widget->font();
// modify font
widget->setFont(font);

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Cheers,
_