void GetClassID( CLSID* pClassID ) const;
Parameters
pClassID
Pointer to an identifier of type CLSID to retrieve the class ID. For information on CLSID, see the OLE documentation.
Remarks
Returns the class ID of the item into the memory pointed to by pClassID. The class ID is a 128-bit number that uniquely identifies the application that edits the item.
For more information, see IPersist::GetClassID in the OLE documentation.