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4/8/2010

Use the lineGetCallBarringStatefunction to retrieve the current barring state for a given mode.

Syntax 

LONG WINAPI lineGetCallBarringState(
  HLINE 
hLine,
  DWORD 
dwMode,
  LPDWORD 
lpdwClasses,
  LPCTSTR 
lpszPassword
);

Parameters

hLine

The line device handle. The line device handle must have been previously obtained by a call to lineOpenwith the proper TAPI device ID specified and a device-specific extension version successfully negotiated with lineNegotiateExtVersion.

dwMode

Indicates which barring mode the application needs status on.

lpdwClasses

Points to a bit field DWORD indicating which media modes are currently barred. See the Barring Modesconstants for possible values.

lpszPassword

A password may be necessary to read the current barring status.

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_INCORRECTPASSWORD

  • 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. Not implemented for CDMA.

Requirements

Header extapi.h
Library cellcore.lib
Windows Embedded CE Windows Embedded CE 6.0 and later
Windows Mobile Pocket PC 2002 and later, Smartphone 2002 and later

See Also