IOCTL_AG_SET_MIC_VOL
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8/28/2008
This IOCTL sets the microphone volume of the headset or the hands-free device.
Parameters
- hDeviceContext
[in] Device context handle.
- fSelector
[in] Equals IOCTL_AG_SET_SPEAKER_VOL.
- cInBuffer
[In] Equals the size of USHORT.
- pInBuffer
[In] Pointer to a USHORT that stores the microphone volume.
- 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 retrieve the current volume of the microphone, use the IOCTL_AG_GET_MIC_VOL IOCTL.
Requirements
| Header | btagpub.h |
| Windows Embedded CE | Windows CE 5.0 and later |