public: class QVector<struct QMessageDialogOptions::CustomButton> const & __thiscall QMessageDialogOptions::customButtons(void)

Mangled name

?customButtons@QMessageDialogOptions@@QAEABV?$QVector@UCustomButton@QMessageDialogOptions@@@@XZ

Exported by

size	filename	version
5978744	Qt5Gui.dll	5.14.2.0