| Microsoft DirectX 8.1 (C++) |
The GetDeviceID function retrieves the unique device identifier of the default playback and capture devices selected by the user under Sounds and Multimedia in Control Panel.
Syntax
HRESULT GetDeviceID(
LPCGUID pGuidSrc,
LPGUID pGuidDest
);
Parameters
pGuidSrc
Address of a variable of type GUID that specifies a valid device identifier, or the address of one of the following predefined variables.
| Value | Description |
| DSDEVID_DefaultPlayback | System-wide default audio playback device. |
| DSDEVID_DefaultCapture | System-wide default audio capture device. |
| DSDEVID_DefaultVoicePlayback | Default voice playback device. |
| DSDEVID_DefaultVoiceCapture | Default voice capture device. |
pGuidDest
Address of a variable of type GUID that receives the unique identifier of the device.
Return Values
If the function succeeds, it returns DS_OK. If it fails, the return value may be DSERR_INVALIDPARAM.
Remarks
If pGuidSrc points to a valid device identifier, the same value is returned in pGuidDest. If pGuidSrc is one of the listed constants, pGuidDest returns the address of the corresponding device GUID.
Requirements
Header: Declared in Dsound.h.
Import Library: Use Dsound.lib.