|
phoneSetRing
The phoneSetRing function rings the specified open phone device using the specified ring mode
and volume.
LONG phoneSetRing(
HPHONE hPhone,
|
| DWORD dwRingMode,
|
| DWORD dwVolume
|
| );
|
|
Parameters
hPhone
A handle to the open phone device. The application must be the owner of the
phone device.
dwRingMode
The ringing pattern with which to ring the phone. This parameter must be
within the range of 0 to the value of the dwNumRingModes field in the PHONECAPS structure. If dwNumRingModes is 0, the ring mode of the phone cannot be controlled; if dwNumRingModes is 1, a value of 0 for dwRingMode indicates that the phone should not be rung (silence), and other values from
1 to dwNumRingModes are valid ring modes for the phone device.
dwVolume
The 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.
A value for dwVolume that is out of range is set to the nearest value in the range.
Return Values
Returns a positive request ID if the function will be completed asynchronously
or a negative error number if an error has occurred. The dwParam2 parameter of the corresponding PHONE_REPLY message is zero if the function is successful or it is a negative error
number if an error has occurred. Possible return values are:
PHONEERR_INVALPHONEHANDLE, PHONEERR_NOMEM, PHONEERR_NOTOWNER,
PHONEERR_RESOURCEUNAVAIL, PHONEERR_INVALPHONESTATE, PHONEERR_OPERATIONFAILED,
PHONEERR_INVALRINGMODE, PHONEERR_UNINITIALIZED, PHONEERR_OPERATIONUNAVAIL.
Remarks
The service provider defines the actual audible ringing patterns corresponding
to each of the phone's ring modes.
See Also
PHONE_REPLY, PHONECAPS
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