The IDirectSoundFullDuplex8 interface represents a full-duplex stream.

The interface is obtained by using the DirectSoundFullDuplexCreate8 function. This function initializes DirectSound capture and playback.

The interface can also be obtained by using CoCreateInstance or CoCreateInstanceEx to create an object of class CLSID_DirectSoundFullDuplex8.

IDirectSoundFullDuplex8 is a define for IDirectSoundFullDuplex. The interface names are interchangeable.

In addition to the methods inherited from IUnknown, the IDirectSoundFullDuplex8 interface exposes the following method.

IDirectSoundFullDuplex8 Members

Method Description
IDirectSoundFullDuplex8::Initialize The Initialize method initializes a full duplex object that was created by using CoCreateInstance.

The LPDIRECTSOUNDFULLDUPLEX type is defined as a pointer to IDirectSoundFullDuplex.

typedef struct IDirectSoundFullDuplex *LPDIRECTSOUNDFULLDUPLEX;


Operating System: Requires Microsoft Windows XP or later.


Important Note for Windows Vista

Existing applications that access Windows XP Acoustic Echo Cancellation (AEC) features via the DirectSound API will no longer obtain AEC when running on Windows Vista. These applications will still run, but their calls to AEC-specific DirectSound API calls will have no effect on the captured audio.

To learn how to obtain AEC in Windows Vista, See the Windows Vista AEC topics in the Windows SDK.

See Also

DirectSound Interfaces