IOCTL_AG_OPEN_AUDIO
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8/28/2008
This IOCTL opens a service level connection and an audio connection to the headset or the hands-free device.
Parameters
- hDeviceContext
[in] Device context handle.
- fSelector
[in] Equals IOCTL_AG_OPEN_AUDIO.
- cInBuffer
Not used.
- pInBuffer
Not used.
- cOutBuffer
Not used.
- pOutBuffer
Not used.
- pcDataReturned
Not used.
Return Values
Returns TRUE if successful, FALSE otherwise. To obtain extended error information, call the GetLastError function.
Remarks
To close an audio connection to the headset, use the IOCTL_AG_CLOSE_AUDIO IOCTL.
To route audio to the headset or to the hands-free device independent of the Network Component, you must first open or close an audio connection.
OEM Extensibility Considerations
To route audio to the Bluetooth hardware outside the call context, the application can send IOCTL_AG_OPEN_AUDIO to the AG service. The AG service automatically sends the WODM_BT_SCO_AUDIO_CONTROL message to the audio driver when an incoming call is answered by the hands-free device and outgoing calls are placed with the phone connected to the hands-free device.
Requirements
| Header | btagpub.h |
| Windows Embedded CE | Windows CE 5.0 and later |