IDirectSound3DBuffer8::SetPosition

The SetPosition method sets the position of the sound source.

HRESULT SetPosition(
  D3DVALUE x,
  D3DVALUE y,
  D3DVALUE z,
  DWORD dwApply
);

x: Value that specifies the x coordinate of the position vector. DirectSound may adjust these values to prevent floating-point overflow. D3DVALUE is defined as float.
y: Value that specifies the y coordinate of the position vector. DirectSound may adjust these values to prevent floating-point overflow. D3DVALUE is defined as float.
z: Value that specifies the z coordinate of the position vector. DirectSound may adjust these values 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:

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

The default unit of measurement is meters, but this can be changed by using the SetDistanceFactor method.

Header: Declared in Dsound.h.

Import Library: Use Dsound3d.dll.

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.