IDirectSound::Initialize
[The feature associated with this page, DirectSound, is a legacy feature. It has been superseded by WASAPI and Audio Graphs. Media Casting have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use Media Casting instead of DirectSound, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
This method initializes the DirectSound object that was created by using the CoCreateInstance function.
Syntax
HRESULT Initialize( LPGUID lpGuid );
Parameters
- lpGuid
Address of the globally unique identifier (GUID) specifying the sound driver to which this DirectSound object binds. Pass NULL to select the primary sound driver.
Return Value
If the method succeeds, the return value is DS_OK.
If the method fails, the return value may be one of the following error values:
| Return Code |
|---|
| DSERR_ALREADYINITIALIZED |
| DSERR_GENERIC |
| DSERR_INVALIDPARAM |
| DSERR_NODRIVER |
Remarks
This method is provided for compliance with the Component Object Model (COM) protocol. If the DirectSoundCreate function was used to create the DirectSound object, this method returns DSERR_ALREADYINITIALIZED. If IDirectSound::Initialize is not called when using CoCreateInstance to create the DirectSound object, any method called afterward returns DSERR_UNINITIALIZED.
Requirements
Header: Declared in DSound.h.
Library: Use Dsound.lib.