CObject::GetRuntimeClass

virtual CRuntimeClass* GetRuntimeClass( ) const;

Return Value

A pointer to the CRuntimeClass structure corresponding to this object’s class; never NULL.

Remarks

There is one CRuntimeClass structure for each CObject-derived class. The structure members are as follows:

• LPCSTR m_lpszClassName   A null-terminated string containing the ASCII class name.
  
  
• int m_nObjectSize   The size of the object, in bytes. If the object has data members that point to allocated memory, the size of that memory is not included.
  
  
• UINT m_wSchema   The schema number ( – 1 for nonserializable classes). See the IMPLEMENT_SERIAL macro for a description of schema number.
  
  
• CObject* ( PASCAL* m_pfnCreateObject )( )   A function pointer to the default constructor that creates an object of your class (valid only if the class supports dynamic creation; otherwise, returns NULL).
  
  
• CRuntimeClass* ( PASCAL* m_pfn_GetBaseClass )( )   If your application is dynamically linked to the AFXDLL version of MFC, a pointer to a function that returns the CRuntimeClass structure of the base class.
  
  
• CRuntimeClass* m_pBaseClass   If your application is statically linked to MFC, a pointer to the CRuntimeClass structure of the base class.

Feature Only in Professional and Enterprise Editions   Static linking to MFC is supported only in Visual C++ Professional and Enterprise Editions. For more information, see Visual C++ Editions.

This function requires use of the IMPLEMENT_DYNAMIC or IMPLEMENT_SERIAL macro in the class implementation. You will get incorrect results otherwise.

Example

See CObList::CObList for a listing of the CAge class used in all CObject examples.

// example for CObject::GetRuntimeClass
CAge a(21);
CRuntimeClass* prt = a.GetRuntimeClass();
ASSERT( strcmp( prt->m_lpszClassName, "CAge" )  == 0 );

CObject Overview |  Class Members |  Hierarchy Chart

See Also   CObject::IsKindOf, RUNTIME_CLASS