Microsoft DirectX 8.0 (C++)

IDirectSound3DBuffer8::SetConeOutsideVolume

Sets the cone outside volume for this sound buffer.

HRESULT SetConeOutsideVolume(
  LONG lConeOutsideVolume, 
  DWORD dwApply 
);

Parameters

lConeOutsideVolume
Cone outside volume for this sound buffer, in hundredths of decibels. Allowable values are between DSBVOLUME_MAX (no attenuation) and DSBVOLUME_MIN (silence). These values are defined in Dsound.h.
dwApply
Value that specifies when the setting should be applied. This value must be one of the following:
DS3D_DEFERRED
Settings are not applied until the application calls the IDirectSound3DListener8::CommitDeferredSettings method. This allows the application to change several settings and generate a single recalculation.
DS3D_IMMEDIATE
Settings are applied immediately, causing the system to recalculate the 3-D coordinates for all 3-D sound buffers.

Return Values

If the method succeeds, the return value is DS_OK.

If the method fails, the return value may be DSERR_INVALIDPARAM.

Remarks

Volume levels are represented by attenuation. Allowable values are between DSBVOLUME_MAX (no attenuation) and DSBVOLUME_MIN (silence). The default value is DS3D_DEFAULTCONEOUTSIDEVOLUME (no attenuation). These values are defined in Dsound.h. Currently DirectSound does not support amplification.

For information about the concept of cone outside volume, see Sound Cones.

Requirements

  Header: Declared in dsound.h.

See Also

IDirectSound3DBuffer8::SetConeAngles, IDirectSound3DBuffer8::SetConeOrientation, IDirectSoundBuffer8::SetVolume