IOCTL_AG_GET_SPEAKER_VOL (Windows CE 5.0)
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_SPEAKER_VOL. - cInBuffer
Not used. - pInBuffer
Not used. - cOutBuffer
Equals the size of USHORT. - pOutBuffer
[out] Pointer to a USHORT that stores the speaker 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 speaker volume, use the IOCTL_AG_SET_SPEAKER_VOL IOCTL.
Requirements
OS Versions: Windows CE 5.0 and later.
Header: Btagpub.h.
See Also
Send Feedback on this topic to the authors