IDirectSound3DListener8::GetVelocity

The GetVelocity method retrieves the listener's velocity.

HRESULT GetVelocity(
  D3DVECTOR * pvVelocity
);

Parameters

pvVelocity

Address of a D3DVECTOR structure that receives the listener's velocity.

Return Values

If the method succeeds, the return value is DS_OK. If the method fails, the return value may be DSERR_INVALIDPARAM.

Remarks

Velocity is used only for calculating Doppler effect. It does not change the listener's position. To move the listener, use the SetPosition method.

The default velocity is (0,0,0).

By default, measurement units are meters per second, but this can be changed by calling the SetDistanceFactor method.

Requirements

Header: Declared in Dsound.h.

Import Library: Use Dsound3d.dll.

See Also

IDirectSound3DListener8