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The IWMDMMetaData interface sets and retrieves metadata properties (such as artist, album, genre, and so on) of a storage. Metadata properties are stored as name-value pairs.
To create a new, empty instance of this interface, call IWMDMStorage3::CreateEmptyMetadataObject. To retrieve this interface (with values), call IWMDMStorage3::GetMetadata or IWMDMStorage4::GetSpecifiedMetadata.
Inheritance
The IWMDMMetaData interface inherits from the IUnknown interface. IWMDMMetaData also has these types of members:
Methods
The IWMDMMetaData interface has these methods.
| IWMDMMetaData::AddItem The AddItem method adds a metadata property to the interface. |
| IWMDMMetaData::GetItemCount The GetItemCount method retrieves the total number of properties held by the interface. |
| IWMDMMetaData::QueryByIndex The QueryByIndex method retrieves the value of a property specified by index. |
| IWMDMMetaData::QueryByName The QueryByName method retrieves the value of a property specified by name. |
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Windows |
| Header | mswmdm.h |