Call this member function to exchange a property between the control and a file. The functions CArchivePropExchange::ExchangePersistentProp, CResetPropExchange::ExchangePersistentProp, and CPropsetPropExchange::ExchangePersistentProp override this pure virtual function.
virtual BOOL ExchangePersistentProp( LPCTSTR pszPropName, LPUNKNOWN FAR* ppUnk, REFIID iid, LPUNKNOWN pUnkDefault ) = 0;
| Header file: | Afxctl.h | 
| Platforms: | |
| Versions: | 2.0 and later | 
| Complete documentation | Visual C++ documentation | 
CPropExchange Overview, CPropExchange Member Functions, Support Classes, COleControl::DoPropExchange, CPropExchange::ExchangeBlobProp, CPropExchange::ExchangeFontProp, CPropExchange::ExchangeProp