public: int __thiscall QMessageDialogOptions::addButton(class QString const &, enum QPlatformDialogHelper::ButtonRole, void *)

Mangled name

?addButton@QMessageDialogOptions@@QAEHABVQString@@W4ButtonRole@QPlatformDialogHelper@@PAX@Z

Exported by

size	filename	version
5978744	Qt5Gui.dll	5.14.2.0