_Tagged Data Storage Architectures_
by Jeremy Vineyard

Listing One
class CSizable
{
protected:
    CRect    cs_dimensions;   // Assume we already have a CRect class.
public:
   virtual CRect GetDimensions();
    virtual void Resize(CRect& rNewSize);
    ...
}

Listing Two
class FT_TaggableObject
{
public:
    // Basic tag ...