virtual BOOL ExchangeBlobProp( LPCTSTR pszPropName, void** ppvBlob, const void* pvBlobDefault = NULL ) = 0;
Return Value
Nonzero if the exchange was successful; 0 if unsuccessful.
Parameters
pszPropName
The name of the property being exchanged.
ppvBlob
Pointer to a variable pointing to where the property is stored (variable is typically a member of your class).
pvBlobDefault
Default value for the property.
Remarks
Serializes a property that stores binary large object (BLOB) data.
The property’s value is read from or written to, as appropriate, the variable referenced by ppvBlob. If pvBlobDefault is specified, it will be used as the property’s default value. This value is used if, for any reason, the control’s serialization fails.
The functions CArchivePropExchange::ExchangeBlobProp, CResetPropExchange::ExchangeBlobProp, and CPropsetPropExchange::ExchangeBlobProp override this pure virtual function.
CPropExchange Overview | Class Members | Hierarchy Chart
See Also COleControl::DoPropExchange, CPropExchange::ExchangeFontProp, CPropExchange::ExchangePersistentProp, CPropExchange::ExchangeProp