Listing 1: Defines the CLeg class

//  Leg.h

#if !defined(AFX_LEG_H__ ... truncated ... __INCLUDED_)
#define AFX_LEG_H__ ... truncated ... __INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "EqSystem.h"

class CVertex;

class CLeg
{
public:
    CLeg( CVertex *pVertex );
    virtual ~CLeg();

    double GetEMF();
    double GetCurrent();
    bool RepresentsEMF( IEqUnknown *pUnknown );
    bool RepresentsCurrent( IEqUnknown *pUnknown );

private:
    CVertex *m_pVertex;
};

#endif // !defined(AFX_LEG_H ... truncated ... __INCLUDED_)