lineGetLineDevStatus

The lineGetLineDevStatus function enables an application to query the specified open line device for its current status.

LONG lineGetLineDevStatus(

HLINE hLine,
LPLINEDEVSTATUS lpLineDevStatus
);

Parameters

hLine

A handle to the open line device to be queried.

lpLineDevStatus

A pointer to a variably sized data structure of type LINEDEVSTATUS. Upon successful completion of the request, this structure is filled with the line's device status. Prior to calling lineGetLineDevStatus, the application should set the dwTotalSize field of this structure to indicate the amount of memory available to TAPI for returning information.

Return Values

Returns zero if the request is successful or a negative error number if an error has occurred. Possible return values are:

LINEERR_INVALLINEHANDLE, LINEERR_RESOURCEUNAVAIL, LINEERR_INVALPOINTER, LINEERR_STRUCTURETOOSMALL, LINEERR_NOMEM, LINEERR_UNINITIALIZED, LINEERR_OPERATIONFAILED, LINEERR_OPERATIONUNAVAIL.

Remarks

An application uses lineGetLineDevStatus to query the line device for its current line status. This status information applies globally to all addresses on the line device. Use lineGetAddressStatus to determine status information about a specific address on a line.

See Also

LINEDEVSTATUS, lineGetAddressStatus

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