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<H1><A NAME="_tapi2_lineaddressstate__constants"></A>LINEADDRESSSTATE_ Constants</H1>
<P>The LINEADDRESSSTATE_ bit-flag constants describe various address status items.
<DL>
<DT>LINEADDRESSSTATE_CAPSCHANGE </DT>
<DD>Indicates that, due to configuration changes made by the user or other circumstances, one or more of the members in the <A HREF="struc1_5uuq.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/struc1_5uuq.htm"><B>LINEADDRESSCAPS</B></A> structure for the address have changed. The application should use <A HREF="func1_533n.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func1_533n.htm"><B>lineGetAddressCaps</B></A> to read the updated structure. If a service provider sends a <A HREF="msgs_3v51.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/msgs_3v51.htm">LINE_ADDRESSSTATE</A> message containing this value to TAPI, TAPI will pass it along to applications that have negotiated TAPI version 1.4 or later; applications negotiating a previous API version will receive <A HREF="msgs_402t.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/msgs_402t.htm">LINE_LINEDEVSTATE</A> messages specifying LINEDEVSTATE_REINIT, requiring them to shut down and reinitialize their connection to TAPI to obtain the updated information. </DD>
<DT>LINEADDRESSSTATE_DEVSPECIFIC </DT>
<DD>The device-specific item of the address status has changed. </DD>
<DT>LINEADDRESSSTATE_FORWARD </DT>
<DD>The forwarding status of the address has changed, including possibly the number of rings for determining a no-answer condition. The application should check the address status to determine details about the address's current forwarding status. </DD>
<DT>LINEADDRESSSTATE_INUSEMANY </DT>
<DD>The monitored or bridged address has changed from being in use by one station to being in use by more than one station. </DD>
<DT>LINEADDRESSSTATE_INUSEONE </DT>
<DD>The address has changed from idle or in use by many bridged stations to being in use by just one station. </DD>
<DT>LINEADDRESSSTATE_INUSEZERO </DT>
<DD>The address has changed to idle (it is not in use by any stations). </DD>
<DT>LINEADDRESSSTATE_NUMCALLS </DT>
<DD>The number of calls on the address has changed. This is the result of events such as a new incoming call, an outgoing call on the address, or a call changing its hold status. This flag covers changes in any of the members <B>dwNumActiveCalls</B>, <B>dwNumOnHoldCalls</B> and <B>dwNumOnHoldPendingCalls</B> in the <A HREF="struc1_848i.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/struc1_848i.htm"><B>LINEADDRESSSTATUS</B></A> structure. The application should check all three of these members when it receives a <A HREF="msgs_3v51.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/msgs_3v51.htm">LINE_ADDRESSSTATE</A> (numCalls) message. </DD>
<DT>LINEADDRESSSTATE_OTHER </DT>
<DD>Address-status items other than those listed below have changed. The application should check the current address status to determine which items have changed. </DD>
<DT>LINEADDRESSSTATE_TERMINALS </DT>
<DD>The terminal settings for the address have changed.
</DD>
</DL>
<P>No extensibility. All 32 bits are reserved. </P>
<P>An application is notified about changes to these status items in the LINE_ADDRESSSTATE message. The address's device capabilities indicate which address state changes can possibly be reported for this address. </P>
<H4><A HREF="javascript:if(confirm('http://msdn.microsoft.com/library/psdk/sdkintro/guide_927n.htm \n\n這個文件不能通過 Teleport Pro 取回, 因為 地址在一個域或為它的開始地址設定的邊界的外部路徑上. \n\n你想從服務器打開它嗎?'))window.location='http://msdn.microsoft.com/library/psdk/sdkintro/guide_927n.htm'" tppabs="http://msdn.microsoft.com/library/psdk/sdkintro/guide_927n.htm">Requirements</A> </H4>
<P><B> Windows NT/2000: </B>Requires Windows NT 4.0 SP3 or later.<BR>
<B> Windows 95/98: </B>Requires Windows 95 or later.<BR>
<B> Version: </B>Requires TAPI 2.0 or later.<BR>
<B> Header: </B>Declared in Tapi.h.</P>
<H4>See Also</H4>
<P><A HREF="msgs_3v51.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/msgs_3v51.htm">LINE_ADDRESSSTATE</A>, <A HREF="msgs_402t.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/msgs_402t.htm">LINE_LINEDEVSTATE</A>, <A HREF="struc1_5uuq.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/struc1_5uuq.htm"><B>LINEADDRESSCAPS</B></A>, <A HREF="struc1_848i.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/struc1_848i.htm"><B>LINEADDRESSSTATUS</B></A>, <A HREF="func1_533n.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func1_533n.htm"><B>lineGetAddressCaps</B></A></P>
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