| Microsoft DirectX 9.0 |
The GetVelocity method retrieves the listener's velocity.
Syntax
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 IDirectSound3DListener8::SetPosition method.
The default velocity is (0,0,0).
Remarks
By default, measurement units are meters per second, but this can be changed by calling the IDirectSound3DListener8::SetDistanceFactor method.
Requirements
Header: Declared in dsound.h.
See Also