phoneGetRing function (tapi.h)
The phoneGetRing function enables an application to query the specified open phone device as to its current ring mode.
Syntax
LONG phoneGetRing(
HPHONE hPhone,
LPDWORD lpdwRingMode,
LPDWORD lpdwVolume
);
Parameters
hPhone
Handle to the open phone device.
lpdwRingMode
Ringing pattern with which the phone is ringing. Zero indicates that the phone is not ringing.
lpdwVolume
Volume level with which the phone is ringing. This is a number in the range 0x00000000 (silence) to 0x0000FFFF (maximum volume). The actual granularity and quantization of volume settings in this range are service provider-specific.
Return value
Returns zero if the request succeeds or a negative error number if an error occurs. Possible return values are:
PHONEERR_INVALPHONEHANDLE, PHONEERR_NOMEM, PHONEERR_INVALPHONESTATE, PHONEERR_RESOURCEUNAVAIL, PHONEERR_INVALPOINTER, PHONEERR_OPERATIONFAILED, PHONEERR_OPERATIONUNAVAIL, PHONEERR_UNINITIALIZED.
Remarks
The service provider defines the actual audible ringing patterns corresponding to each of the phone's ring modes.
Requirements
Requirement | Value |
---|---|
Target Platform | Windows |
Header | tapi.h |
Library | Tapi32.lib |
DLL | Tapi32.dll |
See also
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