C++ Overridden method not getting called

Question

Shape.h

namespace Graphics {
    class Shape {
    public:
        virtual void Render(Point point) {};
    };
}

Rect.h

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Answer 1

You are accessing the shape object directly for the override to work you need to access the object via a pointer or references.

For example when you assigne the Shape into the ShapePointPair the code will 'slice' the object and only copy the Shape bit into the ShapePointPair

Doing this will mean you have to watch memory management - so you could use a smart pointer in the struct ShapePointPair { smart_pointer shape; Point location; };