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4/8/2010

Use the lineUnregisterfunction to unregister the device from the current network operator.

Syntax 

LONG WINAPI lineUnregister(
  HLINE 
hLine
);

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.

Remarks

This is a privileged function.

Note:
This function is not supported for CDMA.

Return Value

Returns a positive request identifier if the function is completed asynchronously, or a negative error number if an error occurs. The dwParam2parameter of the corresponding LINE_REPLY message is zero if the function succeeds or it is a negative error number if an error occurs. The following are possible return values:

  • LINEERR_INVALLINEHANDLE

  • LINEERR_NOMEM

  • LINEERR_OPERATIONUNAVAIL

  • LINEERR_OPERATIONFAILED

  • LINEERR_RESOURCEUNAVAIL

  • LINEERR_UNINITIALIZED

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