Note: If the selected font, though supporting the writing system in general, is missing glyphs for one or more specific characters, then Qt will try to find a fallback font for this or these particular characters.
![lucida calligraphy font kit lucida calligraphy font kit](https://graphicex.com/uploads/posts/2020-01/1578466029_1575556292_undefined4.jpg)
QFont can be regarded as a query for one or more fonts on the system.
![lucida calligraphy font kit lucida calligraphy font kit](https://www.fonts.com/cdn-cgi/image/format=auto/https://cdnimg.fonts.net/CatalogImages/25/5768771.png)
SetStyleHint(QFont::StyleHint hint, QFont::StyleStrategy strategy = PreferDefault) SetLetterSpacing(QFont::SpacingType type, qreal spacing) SetHintingPreference(QFont::HintingPreference hintingPreference)
![lucida calligraphy font kit lucida calligraphy font kit](https://i.etsystatic.com/12186795/r/il/881679/1686879411/il_570xN.1686879411_pxo2.jpg)
SetFamilies(const QStringList & families) QFont(const QString & family, int pointSize = -1, int weight = -1, bool italic = false) QFont(const QFont & font, const QPaintDevice * pd)