| Microsoft DirectX 8.1 (C++) |
The IDirectSound3DBuffer8 interface is used to retrieve and set parameters that describe the position, orientation, and environment of a sound buffer in 3-D space.
IDirectSound3DBuffer8 is a define for IDirectSoundBuffer. The two interface names are interchangeable.
The IDirectSound3DBuffer8 interface is obtained from an IDirectSoundBuffer8 interface by using the IDirectSoundBuffer8::QueryInterface method. It can also be retrieved from an audiopath.
In addition to the methods inherited from IUnknown, the IDirectSound3DBuffer8 interface exposes the following methods.
| Method | Description |
| GetMode | Retrieves the operation mode for 3-D sound processing. |
| SetMode | Sets the operation mode for 3-D sound processing. |
| Method | Description |
| GetAllParameters | Retrieves information that describes the 3-D characteristics of a sound buffer at a given point in time. |
| SetAllParameters | Sets all 3-D sound buffer parameters. |
| Method | Description |
| GetMaxDistance | Retrieves the maximum distance for this sound buffer. |
| GetMinDistance | Retrieves the minimum distance for this sound buffer. |
| SetMaxDistance | Sets the maximum distance value. |
| SetMinDistance | Sets the minimum distance value. |
| Method | Description |
| GetPosition | Retrieves the sound buffer's position, in distance units. |
| SetPosition | Sets the sound buffer's position, in distance units. |
| Method | Description |
| GetConeAngles | Retrieves the inside and outside angles of the sound projection cone for this sound buffer. |
| GetConeOrientation | Retrieves the orientation of the sound projection cone for this sound buffer. |
| GetConeOutsideVolume | Retrieves the cone outside volume for this sound buffer. |
| SetConeAngles | Sets the inside and outside angles of the sound projection cone for this sound buffer. |
| SetConeOrientation | Sets the orientation of the sound projection cone for this sound buffer. |
| SetConeOutsideVolume | Sets the cone outside volume for this sound buffer. |
| Method | Description |
| GetVelocity | Retrieves the velocity for this sound buffer. |
| SetVelocity | Sets the velocity of the sound source. |
The LPDIRECTSOUND3DBUFFER type is defined as a pointer to the IDirectSound3DBuffer8 interface:
typedef struct IDirectSound3DBuffer *LPDIRECTSOUND3DBUFFER;
Requirements
Header: Declared in dsound.h.
See Also