The IWMPropertyVault interface provides methods to store and retrieve properties. Currently, you can use this interface to set properties associated with variable bit rate (VBR) encoding. The generic nature of IWMPropertyVault allows for its use in other situations in future versions of the Format SDK.
IWMPropertyVault is exposed by stream configuration objects. To obtain a pointer to IWMPropertyVault, you must call the QueryInterface method of one of the other interfaces of an existing stream configuration object.
The IWMPropertyVault interface has these methods.
|IWMPropertyVault::Clear||The Clear method removes all items from the property vault.|
|IWMPropertyVault::CopyPropertiesFrom||The CopyPropertiesFrom method copies all of the properties from another property vault to this one.|
|IWMPropertyVault::GetPropertyByIndex||The GetPropertyByIndex method retrieves a property from the vault by its index value.|
|IWMPropertyVault::GetPropertyByName||The GetPropertyByName method retrieves a property from the vault by its name.|
|IWMPropertyVault::GetPropertyCount||The GetPropertyCount method retrieves a count of all the properties in the property vault.|
|IWMPropertyVault::SetProperty||The SetProperty method sets the values for a property. If the property named already exists in the property vault, SetProperty changes its value as specified. If the property named does not exist, SetProperty adds it to the property vault.|