DS3DBUFFER

The DS3DBUFFER structure contains all information necessary to uniquely describe the location, orientation, and motion of a 3-D sound buffer. This structure is used with the IDirectSound3DBuffer::GetAllParameters and IDirectSound3DBuffer::SetAllParameters methods.

typedef struct {

DWORD dwSize;

D3DVECTOR vPosition;

D3DVECTOR vVelocity;

DWORD dwInsideConeAngle;

DWORD dwOutsideConeAngle;

D3DVECTOR vConeOrientation;

LONG lConeOutsideVolume;

D3DVALUE flMinDistance;

D3DVALUE flMaxDistance;

DWORD dwMode;

} DS3DBUFFER, *LPDS3DBUFFER;

typedef const DS3DBUFFER *LPCDS3DBUFFER;

Members

dwSize

Size of the structure, in bytes. This member must be initialized before the structure is used.

vPosition

A D3DVECTOR structure that describes the current position of the 3-D sound buffer.

vVelocity

A D3DVECTOR structure that describes the current velocity of the 3-D sound buffer.

dwInsideConeAngle

The angle of the inside sound projection cone.

dwOutsideConeAngle

The angle of the outside sound projection cone.

vConeOrientation

A D3DVECTOR structure that describes the current orientation of this 3-D buffer's sound projection cone.

lConeOutsideVolume

The cone outside volume.

flMinDistance

The minimum distance.

flMaxDistance

The maximum distance.

dwMode

The 3-D sound processing mode to be set.

DS3DMODE_DISABLE

3-D sound processing is disabled. The sound will appear to originate from the center of the listener's head.

DS3DMODE_HEADRELATIVE

Sound parameters (position, velocity, and orientation) are relative to the listener's parameters. In this mode, the absolute parameters of the sound are updated automatically as the listener's parameters change, so that the relative parameters remain constant.

DS3DMODE_NORMAL

Normal processing. This is the default mode.

QuickInfo

  Windows NT: Use version 5.0 or later.
  Windows: Use Windows 95 OSR2 or later. Available as a redistributable for Windows 95.
  Windows CE: Unsupported.
  Header: Declared in dsound.h.