IDirectSound3DBuffer::SetPosition
The IDirectSound3DBuffer::SetPosition method sets the sound buffer's current position, in distance units. By default, distance units are meters, but the units can be changed by using the IDirectSound3DListener::SetDistanceFactor method.
HRESULT SetPosition(
D3DVALUE x,
D3DVALUE y,
D3DVALUE z,
DWORD dwApply
);
Parameters
x, y, and z
Values whose types are D3DVALUE and that represent the coordinates of the new position vector. Note that Directsound may adjust these values to prevent floating-point overflow.
dwApply
Value indicating when the setting should be applied. This value must be one of the following:
| DS3D_DEFERRED | Settings are not applied until the application calls the IDirectSound3DListener::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 3-D coordinates for all 3-D 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.