| Sent to | LINEEVENT |
| Parameters | HTAPILINE htLine Specifies the TAPI DLL's opaque object handle to the line device. |
| HTAPICALL htCall Unused | |
| DWORD dwMsg The value LINE_ADDRESSSTATE | |
| DWORD dwParam1 Specifies the address ID of the address that changed status. | |
| DWORD dwParam2 Specifies the address state that changed, of type LINEADDRESSSTATE. Values are: | |
| LINEADDRESSSTATE_OTHER An status item or multiple items in the address' status not listed below have changed. The TAPI DLL can check the current address status to determine which items have changed. | |
| LINEADDRESSSTATE_DEVSPECIFIC The device specific item of the address status has changed. | |
| LINEADDRESSSTATE_INUSEZERO The address has changed to idle; i.e., it is now in use by zero stations. | |
| LINEADDRESSSTATE_INUSEONE The address has changed from being idle or from being in use by many bridged stations to being in use by just one station. | |
| LINEADDRESSSTATE_INUSEMANY The monitored or bridged address has changed to being in use by one station to being used by more than one station. | |
| LINEADDRESSSTATE_NUMCALLS The number of calls on the address has changed. This is the result of either a new inbound call, or an outbound call on the address, a call changing its hold status, etc. | |
| LINEADDRESSSTATE_FORWARD The forwarding status of the address has changed including the number of rings for determining a no answer condition. The app should check the address status to determine details about the address' current forwarding status. | |
| LINEADDRESSSTATE_TERMINALS The terminal settings for the address have changed. | |
| DWORD dwParam3 Unused. | |
| Comments | This message is sent whenever the line is open by the TAPI DLL and an event occurs in which the TAPI DLL has expressed an interest. The TAPI DLL uses the TSPI_lineSetStatusMessages function to specify the set of status-change events in which it is interested. By default, address status reporting is disabled. |
| See Also | Functions: TSPI_lineGetAddressStatus, TSPI_lineSetStatusMessages Data Types: LINEADDRESSSTATUS |