public: void __thiscall QMatrix4x4::frustum(float, float, float, float, float, float)

Mangled name

?frustum@QMatrix4x4@@QAEXMMMMMM@Z

Exported by

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