IDirectMusicLoader8 Interface
The IDirectMusicLoader8 interface is used for finding, enumerating, caching, and loading objects. For an overview, see Loading Audio Data.
This interface supersedes IDirectMusicLoader and adds support for garbage collection.
In addition to the methods inherited from IUnknown, the IDirectMusicLoader8 interface exposes the following methods.
| Method | Description |
| CacheObject | Stores a reference to an object for later use, so that the object is not loaded more than once. |
| ClearCache | Removes all saved references to a specified object type. |
| CollectGarbage | Removes from the cache objects that are no longer in use. |
| EnableCache | Enables or disables automatic caching of all objects loaded. |
| EnumObject | Enumerates all available objects of the specified type. |
| GetObject | Retrieves an object from a file or resource. |
| LoadObjectFromFile | Retrieves an object from a file. |
| ReleaseObjectByUnknown | Releases the loader's reference to an object. |
| ReleaseObject | Releases the loader's reference to an object. |
| ScanDirectory | Searches a directory or disk for all files of a specified class type and file name extension. |
| SetObject | Enables the loader to find an object when it is later referenced by another object that is being loaded, and adds attributes to an object so that it can be identified by those attributes. |
| SetSearchDirectory | Sets a search path for finding object files. |
The LPDMUS_LOADER type is defined as a pointer to the IDirectMusicLoader interface:
typedef IDirectMusicLoader __RPC_FAR *LPDMUS_LOADER;
The following table lists the standard types of loadable objects, together with their class identifiers (the rguidClass parameter of various methods that deal with objects) and the usual file name extension.
| Object type | Class | Extension |
| Audiopath | CLSID_DirectMusicAudioPathConfig | aud |
| Band | CLSID_DirectMusicBand | bnd |
| Container | CLSID_DirectMusicContainer | con |
| DLS collection | CLSID_DirectMusicCollection | dls |
| Chordmap | CLSID_DirectMusicChordMap | cdm |
| Segment | CLSID_DirectMusicSegment | sgt |
| Script | CLSID_DirectMusicScript | spt |
| Style | CLSID_DirectMusicStyle | sty |
| Template | CLSID_DirectMusicSegment | tpl |
| Toolgraph | CLSID_DirectMusicGraph | tgr |
| Wave | CLSID_DirectSoundWave | wav |
Requirements
** Header:** Dmusici.h
Library: Dmloader.dll, Dmloaded.dll
See Also