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IOCTL_AG_CLOSE_AUDIO (Windows Embedded CE 6.0)

  • Article

1/6/2010

This IOCTL closes the currently open audio connection to the headset or the hands-free device.

Note

IOCTL_AG_CLOSE_AUDIO does not close the currently open service level connection. To close it, use IOCTL_AG_CLOSE_CONTROL.

Parameters

  • hDeviceContext
    [in] Device context handle.
  • fSelector
    [in] Equals IOCTL_AG_CLOSE_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

This IOCTL sends the WODM_BT_SCO_AUDIO_CONTROL message to the audio driver to disable audio routing. Other AG service IOCTLs do not communicate with the audio driver.

To open an audio connection to the headset or the hands-free device, use the IOCTL_AG_OPEN_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.

Requirements

Header btagpub.h
Windows Embedded CE Windows CE 5.0 and later

See Also

Concepts

Bluetooth OS IOCTLs
Audio Gateway Core Component