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lineSetPreferredOperator

Windows Mobile 6.5
A version of this page is also available for
4/8/2010

Use the lineSetPreferredOperator function to set or delete a preferred operator. The preferred operator list is stored locally on the phone and automatic registration iterates through this list when attempting to register.


LONG WINAPI lineSetPreferredOperator(
  HLINE hLine,
  LPLINEOPERATOR lpOperator
);

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.

lpOperator

Points to a LINEOPERATOR structure that provides information about a preferred operator. If the dwIndex member is LINEOPERATOR_USEFIRSTAVAILABLEINDEX, write to first available location. If dwValidParams is LINEOPFORMAT_NONE and dwIndex is not LINEOPERATOR_USEFIRSTAVAILABLEINDEX, erase the operator entry at dwIndex.

Returns a positive request identifier if the function is completed asynchronously, or a negative error number if an error occurs. The dwParam2 parameter 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_INVALPOINTER
  • LINEERR_INVALPARAM
  • LINEERR_UNINITIALIZED

This is a privileged function.

Not implemented for CDMA.

Aa923169.note(en-us,MSDN.10).gifNote:
For operator selection, use the numeric ID.

Headerextapi.h
Librarycellcore.lib
Windows Embedded CEWindows CE 3.0 and later
Windows MobilePocket PC 2002 and later, Smartphone 2002 and later

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