| Microsoft DirectX 9.0 |
The SetOrientation method sets the orientation of the listener's head.
Syntax
HRESULT SetOrientation(
D3DVALUE xFront,
D3DVALUE yFront,
D3DVALUE zFront,
D3DVALUE xTop,
D3DVALUE yTop,
D3DVALUE zTop,
DWORD dwApply
);
Parameters
xFront, yFront, zFront
Values that specify the coordinates of the front orientation vector. D3DVALUE is defined as float.
xTop, yTop, zTop
Values that specify the coordinates of the top orientation vector.
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 IDirectSound3DListener8::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.
Remarks
The front vector points in the direction of the listener's nose, and the top vector points up from the top of the listener's head. By default, the front vector is (0,0,1.0) and the top vector is (0,1.0,0).
The top vector must be at right angles to the front vector. If necessary, DirectSound adjusts the top vector after setting the front vector.
Requirements
Header: Declared in dsound.h.
See Also