IDirectSound3DBuffer8::SetMode

The SetMode method sets the operation mode for 3D sound processing.

HRESULT SetMode(
  DWORD dwMode,
  DWORD dwApply
);

Parameters

dwMode

Flag specifying the 3D sound processing mode to be set. The flags in the following table are defined.

Value	Description
DS3DMODE_DISABLE	Processing of 3D sound is disabled. The sound seems to originate from the center of the listener's head.
DS3DMODE_HEADRELATIVE	Sound parameters (position, velocity, and orientation) are relative to the listener's parameters. In this mode, the absolute parameters of the sound are updated automatically as the listener's parameters change, so that the relative parameters remain constant.
DS3DMODE_NORMAL	Normal processing. This is the default mode.

dwApply

Value that specifies when the setting should be applied. This value must be one of those in the following table.

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.

Requirements

Header: Declared in Dsound.h.

Import Library: Use Dsound3d.dll.

See Also

IDirectSound3DBuffer8