lineUnregister
A version of this page is also available for
4/8/2010
Use the lineUnregister function 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 lineOpen with 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 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_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 |