Applications use the methods of the IDirectSound interface to create DirectSound objects and set up the environment. This section is a reference to the methods of this interface.
The interface is obtained by using the DirectSoundCreate function.
The methods of the IDirectSound interface can be organized into the following groups:
| Allocating memory | Compact |
| Initialize | |
| Creating buffers | CreateSoundBuffer |
| DuplicateSoundBuffer | |
| SetCooperativeLevel | |
| Device capabilities | GetCaps |
| Speaker configuration | GetSpeakerConfig |
| SetSpeakerConfig |
The IDirectSound interface, like all COM interfaces, inherits the IUnknown interface methods. The IUnknown interface supports the following three methods:
| IUnknown | AddRef |
| QueryInterface | |
| Release |
The LPDIRECTSOUND type is defined as a pointer to the IDirectSound interface:
typedef struct IDirectSound *LPDIRECTSOUND;