WODM_BT_SCO_AUDIO_CONTROL (Windows CE 5.0)
This message is used in an MMDRV_MESSAGE_PARAMS structure passed to the WAV_IOControl function to route audio to the Bluetooth chip.
Parameters
- uDeviceId
Device identifier — 0, 1, 2, and so on — for the target device. - uMsg
Specifies this message. - dwUser
Specifies a device instance identifier. - dwParam1
Not used.** - dwParam2
Specifies TRUE to enable routing to the Bluetooth chip and FALSE to send audio to the default source.
Return Values
MMSYSERR_NOERROR indicates success. Otherwise, the driver returns one of the MMSYSERR or WAVEERR error values declared in the Mmsystem.h header file.
Remarks
This message is sent by the Audio Gateway Service and received by the waveform output driver to route audio. Process this message in WAV_IOControl to ensure that audio is routed based on the dwParam2 parameter value.
This message is used as both input and output driver messages to process Bluetooth audio streams.
The Audio Gateway service automatically creates a SCO connection to the headset device.
Requirements
OS Versions: Windows CE 5.0 and later.
Header: Bt_ddi.h.
See Also
Routing Audio to the Bluetooth Hardware
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