public: class QAction * __thiscall QMenuBar::addAction(class QString const &, class QObject const *, char const *)

Mangled name

?addAction@QMenuBar@@QAEPAVQAction@@ABVQString@@PBVQObject@@PBD@Z

Exported by

size	filename	version
4297216	Qt5Widgets.dll	5.1.0.0