private: class QPicturePrivate * __thiscall QPicture::d_func(void)

Mangled name

?d_func@QPicture@@AAEPAVQPicturePrivate@@XZ

Exported by

size	filename	version
3052032	Qt5Gui.dll	5.1.0.0
5978744	Qt5Gui.dll	5.14.2.0