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GetDeviceID

The GetDeviceID function retrieves the unique device identifier of the default playback and capture devices selected by the user in Control Panel.


HRESULT GetDeviceID(
         LPCGUID pGuidSrc,
         LPGUID pGuidDest
)

Parameters

pGuidSrc
Address of a variable 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 that receives the unique identifier of the device.

Return Value

If the function succeeds, it returns DS_OK. If it fails, the return value may be DSERR_INVALIDPARAM.

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.

Header: Declared in DSound.h.
Library: Use Dsound.lib.

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