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lineGetEquipmentState

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Windows Embedded CE 6.0 R3

4/8/2010

Use the lineGetEquipmentState function to retrieve the state of the radio transmitter and receiver.

Syntax

LONG WINAPI lineGetEquipmentState(
  HLINE hLine,
  LPDWORD lpdwState,
  LPDWORD lpdwRadioSupport
);

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.
  • lpdwState
    Points to a DWORD indicating the equipment state. See the Equipment States constants for possible values.
  • lpdwRadioSupport
    Indicates the state of the Radio hardware. See the Radio States constants for possible values.

Return Value

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

Header extapi.h
Library cellcore.lib
Windows Embedded CE Windows CE 3.0 and later
Windows Mobile Pocket PC 2002 and later, Smartphone 2002 and later

See Also

Reference

Extended TAPI Functions
Equipment States
Radio States