KSPROPERTY_DIRECTSOUND3DBUFFER_VELOCITY

The KSPROPERTY_DIRECTSOUND3DBUFFER_VELOCITY property specifies the velocity of a 3D sound buffer.

The property value (operation data) is a structure of type DS3DVECTOR that specifies the buffer velocity. Velocity is expressed in units of one meter per second by default, but the units can be changed through the KSPROPERTY_DIRECTSOUND3DLISTENER_DISTANCEFACTOR property.

Return Value

A KSPROPERTY_DIRECTSOUND3DBUFFER_VELOCITY property request returns STATUS_SUCCESS to indicate that it has completed successfully. Otherwise, the request returns an appropriate error status code.

Headers

Declared in ksmedia.h. Include ksmedia.h.

Comments

For more information on the velocity of a DirectSound 3D buffer, see the following in the Platform SDK documentation:

• The vVelocity member of the DS3DBUFFER structure.
• The IDirectSound3DBuffer::GetVelocity and IDirectSound3DBuffer::GetVelocity methods.

See Also

KSNODEPROPERTY, DS3DVECTOR, KSPROPERTY_DIRECTSOUND3DLISTENER_DISTANCEFACTOR