You need a special form of IMPLEMENT_SERIAL that looks like this: Use the regular DECLARE_SERIAL but use IMPLEMENT_SERIAL_ABC shown below instead of IMPLEMENT_SERIAL.

#define IMPLEMENT_SERIAL_ABC(class_name, base_class_name, wSchema)

_IMPLEMENT_RUNTIMECLASS(class_name, base_class_name, wSchema, NULL)

CArchive& AFXAPI operator>>(CArchive& ar, class_name* &pOb)

{

    pOb = (class_name*) ar.ReadObject(RUNTIME_CLASS(class_name));

    return ar;

}

anonymous