lineGetCallBarringState
Use the lineGetCallBarringState function to retrieve the current barring state for a given mode.
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 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. - 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 Modes constants for possible values. - lpszPassword
A password may be necessary to read the current barring status.
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_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
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 | Barring Modes
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