lineGetCallBarringCaps (Windows Embedded CE 6.0)

1/6/2010

Use the lineGetCallBarringCaps function to retrieve the barring modes and line capability classes supported by the radio hardware. The actual set of usable modes and classes may be smaller depending on network capabilities and the provisioning of a particular subscriber.

Syntax

LONG WINAPI lineGetCallBarringCaps(
  HLINE hLine,
  LPDWORD lpdwModes,
  LPDWORD lpdwClasses
);

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.

• lpdwModes
  Points to a bit field DWORD that enumerates all supported barring modes.

• lpdwClasses
  Points to a bit field DWORD that enumerates the set of supported line capability types (e.g., voice, data, etc.). See the Barring Modes constants for all 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

See Also

Reference

Extended TAPI Functions
Barring Modes