C / C++ / MFC

.----------.
|CObject   |
|          |
·^---------·
 |
 |
.^---------.    .----------.
|Class A   |    |Class B   |
|          |    |          |
·-------^--·    ·^---------·
        |        |
        |        |
        |        |
        |       .^---------.
        |       |Class C   |
        |       |          |
        |       ^----------·
        |       |
        |       |
       .^-------^-----.
       |Class D       |
       |              |
       ·^-------------·
        |
        |
        |
       .^-------------.
       |Class E       |
       |              |
       ·--------------·

KeyInfo.h:
class CKeyInfo : public CObject
{
public:
 
    CKeyInfo() {}
    virtual ~CKeyInfo() {}
 
    DECLARE_SERIAL(CKeyInfo)
    virtual void Serialize( CArchive &ar );
};
 
KeyInfo.cpp:
IMPLEMENT_SERIAL(CKeyInfo, CObject, 1)
 
void CKeyInfo::Serialize( CArchive &ar ) // this is never called
{
    CObject::Serialize(ar);
 
    if (ar.IsStoring())
    {
    }
    else
    {
    }
}
 
MyDoc.h:
class CMyDoc : public CDocument
{
    ...
private:
    CArray<CKeyInfo *, CKeyInfo *> m_arrKeyNames;
};
 
MyDoc.cpp:
void CMyDoc::Serialize(CArchive& ar)
{
    if (ar.IsStoring())
    {
    }
    else
    {
    }
 
    m_arrKeyNames.Serialize(ar); // this gets called when the app is closing
}

template <>
void AFXAPI SerializeElements <CKeyInfo> ( CArchive &ar, CKeyInfo *pKeyInfo, int nCount )
{
    // serialize each object
    for (int x = 0; x < nCount; x++, pKeyInfo++)
        pKeyInfo->Serialize(ar);
}