lineGetRadioPresence
Use the lineGetRadioPresence function to determine whether a radio module is present.
LONG WINAPI lineGetRadioPresence(
HLINE hLine,
LPDWORD lpdwRadioPresence
);
Parameters
- hLine
The line device handle. The line device handle must have been previously obtained by a call to lineOpen with the proper TAPI device ID specified and a device-specific extension version successfully negotiated with lineNegotiateExtVersion. For more information about lineNegotiateExtVersion and lineOpen, see the TAPI Functions API Reference topics on MSDN. - lpdwRadioPresence
Points to a DWORD which indicates whether there is a radio present. See the Radio Presence constants for possible values.
Return Values
Returns zero if the function completes successfully, or a negative error number if an error occurs. The following are possible return values.
LINEERR_RESOURCEUNAVAIL
LINEERR_INVALLINEHANDLE
LINEERR_STRUCTURETOOSMALL
LINEERR_INVALPOINTER
LINEERR_UNINITIALIZED
LINEERR_NOMEM
LINEERR_OPERATIONUNAVAIL
LINEERR_OPERATIONFAILED
Remarks
This function is synchronous. No LINE_REPLY message is sent.
Requirements
Pocket PC: Pocket PC 2002 and later.
Smartphone: Smartphone 2002 and later.
OS Versions: Windows CE 3.0 and later.
Header: Extapi.h.
Library: Cellcore.lib.
See Also
Extended TAPI Functions | Radio Presence
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