lineGetCallBarringCaps
A version of this page is also available for
4/8/2010
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
| 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 |