private: void __thiscall QFont::detach(void)

Mangled name

?detach@QFont@@AAEXXZ

Exported by

size	filename	version
2703360	qt-mt230nc.dll
3052032	Qt5Gui.dll	5.1.0.0
5978744	Qt5Gui.dll	5.14.2.0

Imported by

size	filename
4297216	Qt5Widgets.dll