DirectSound3DBuffer.SetMode

The DirectSound3DBuffer.SetMode method sets the operation mode for 3-D sound processing.

object.SetMode(mode As CONST_DS3DMODEFLAGS, _
    applyFlag As CONST_DS3DAPPLYFLAGS)

Parameters

object

Object expression that resolves to a DirectSound3DBuffer object.

mode

One of the following constants of the CONST_DS3DMODEFLAGS enumeration specifying the 3-D sound processing mode to be set:

DS3DMODE_DISABLE

Processing of 3-D 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.

applyFlag

Value indicating when the setting should be applied. This value must be one of the following constants of the CONST_DS3DAPPLYFLAGS enumeration:

DS3D_DEFERRED

Settings are not applied until the application calls the DirectSound3DListener.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.

Error Codes

If the method fails, an error is raised and Err.Number may be set to DSERR_INVALIDPARAM.