IDirectSound3DListener8::SetPosition
    The SetPosition method sets the listener's position.
            
		
        
HRESULT SetPosition(
  D3DVALUE x,
  D3DVALUE y,
  D3DVALUE z,
  DWORD dwApply
);
    
Parameters
      - x
- Value that specifies the x coordinate of the listener's position vector. Note that DirectSound may adjust this value to prevent floating-point overflow. D3DVALUE is defined as float. 
- y
- Value that specifies the y coordinate of the listener's position vector. Note that DirectSound may adjust this value to prevent floating-point overflow. D3DVALUE is defined as float. 
- z
- Value that specifies the z coordinate of the listener's position vector. Note that DirectSound may adjust this value to prevent floating-point overflow. D3DVALUE is defined as float. 
- dwApply
- Value that specifies when the setting should be applied. This value must be one of the following: 
        
          | Value | Description | 
        
          | DS3D_DEFERRED | Settings are not applied until the application calls the 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 3D coordinates for all 3D 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
By default, measurement units are meters, but this can be changed by calling the SetDistanceFactor method.
Requirements
  Header: Declared in Dsound.h.
					
          Import Library: 
Use Dsound3d.dll.
    
See Also
IDirectSound3DListener8