public: void __thiscall gfx::RectBase<class gfx::Rect, class gfx::Point, class gfx::Size, class gfx::Insets, class gfx::Vector2d, int>::Union(class gfx::Rect const &)

Mangled name

?Union@?$RectBase@VRect@gfx@@VPoint@2@VSize@2@VInsets@2@VVector2d@2@H@gfx@@QAEXABVRect@2@@Z