lineGetRadioPresence

  • Article

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 in the Windows CE SDK.
  • lpdwRadioPresence
    Points to a DWORD which indicates whether there is a radio present. See the Radio Presence constants for possible values.

Return Values

The lineGetRadioPresence function returns zero if the function completed successfully, and returns 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 Platforms: Pocket PC 2002 and later
OS Versions: Windows CE 3.0 and later
Header: extapi.h
Library: cellcore.lib

See Also

Radio Presence

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