Callback Interfaces Used in Data Transfer

Applications can optionally provide callback interfaces that receive notifications from Windows Media Device Manager about data transfers. The IWMDMOperation interface can be implemented to support BeginRead, BeginWrite, End, GetObjectAttributes, SetObjectAttributes, and other methods used by theIWMDMStorageControl interface. GetObjectAttributes, SetObjectAttributes, and related methods can be used to control the size, identifiers, and other attributes of data being transferred.

The IWMDMProgress interface, when implemented, supports data transfer by methods of the IWMDMStorageControl interface and the IWMDMStorageGlobals interface.

See Also

• IWMDMStorageGlobals Interface
• IWMDMOperation Interface
• IWMDMProgress Interface
• IWMDMStorageControl Interface
• IWMDMStorageControl::Insert
• IWMDMStorageControl::Read