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phoneGetMessage
The phoneGetMessage function returns the next TAPI message that is queued for delivery to an
application that is using the Event Handle notification mechanism (see phoneInitializeEx for further details).
LONG phoneGetMessage(
HPHONEAPP hPhoneApp,
|
| LPPHONEMESSAGE lpMessage,
|
| DWORD dwTimeout
|
| );
|
|
Parameters
hPhoneApp
The handle returned by phoneInitializeEx. The application must have set the PHONEINITIALIZEEXOPTION_USEEVENT option in
the dwOptions field of the PHONEINITIALIZEEXPARAMS structure.
lpMessage
A pointer to a PHONEMESSAGE structure. Upon successful return from this function, the structure will
contain the next message which had been queued for delivery to the application.
dwTimeout
The time-out interval, in milliseconds. The function returns if the interval
elapses, even if no message can be returned. If dwTimeout is zero, the function checks for a queued message and returns immediately. If dwTimeout is INFINITE, the function's time-out interval never elapses.
Return Values
Returns zero if the request is successful or a negative error number if an
error has occurred. Possible return values are:
PHONEERR_INVALAPPHANDLE, PHONEERR_OPERATIONFAILED, PHONEERR_INVALPOINTER,
PHONEERR_NOMEM.
Remarks
If this function has been called with a non-zero timeout and the application
calls phoneShutdown on another thread, this function will return immediately with
PHONEERR_INVALAPPHANDLE.
If the timeout expires (or was zero) and no message could be fetched from the
queue, the function returns with the error PHONEERR_OPERATIONFAILED.
See Also
PHONEINITIALIZEEXPARAMS, PHONEMESSAGE, phoneShutdown
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