IOCTL_AG_GET_MIC_VOL (Windows Embedded CE 6.0)

1/6/2010

This IOCTL retrieves the speaker volume of the headset or the hands-free device.

Parameters

• hDeviceContext
  [in] Device context handle.

• fSelector
  [in] Equals IOCTL_AG_GET_MIC_VOL.

• cInBuffer
  Not used.

• pInBuffer
  Not used.

• cOutBuffer
  Equals the size of USHORT.

• pOutBuffer
  [out] Pointer to a USHORT that stores the microphone volume.

• pcDataReturned
  Equals cOutBuffer.

Return Values

Returns TRUE if successful, FALSE otherwise. To obtain extended error information, call the GetLastError function.

Remarks

To set the microphone volume, use the IOCTL_AG_SET_MIC_VOL IOCTL.

Requirements

See Also

Concepts

Bluetooth OS IOCTLs
Audio Gateway Core Component