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<H1><A NAME="_tapi2_lineshutdown"></A>lineShutdown</H1>
<P>The <B>lineShutdown</B> function shuts down the application's usage of the line abstraction of the API. </P>
<PRE class=syntax><B>LONG WINAPI lineShutdown(
HLINEAPP</B><I> hLineApp </I>
<B>);</B></PRE>
<H4>Parameters</H4>
<DL>
<DT><I>hLineApp</I> </DT>
<DD>The application's usage handle for the line API.
</DD>
</DL>
<H4>Return Values</H4>
<P>Returns zero if the request succeeds or a negative error number if an error occurs. Possible return values are: </P>
<P>LINEERR_INVALAPPHANDLE, LINEERR_RESOURCEUNAVAIL, LINEERR_NOMEM, LINEERR_UNINITIALIZED.</P>
<H4>Remarks</H4>
<P>If this function is called when the application has lines open or calls active, the call handles are deleted and TAPI automatically performs the equivalent of a <A HREF="func1_2zhh.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func1_2zhh.htm"><B>lineClose</B></A> on each open line. However, it is recommended that applications explicitly close all open lines before invoking <B>lineShutdown</B>. If shutdown is performed while asynchronous requests are outstanding, those requests are canceled. </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 1.3 or later.<BR>
<B> Header: </B>Declared in Tapi.h.<BR>
<B> Library: </B>Use Tapi32.lib.</P>
<H4>See Also</H4>
<P><A HREF="quickref_1okl.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/quickref_1okl.htm">TAPI 2.2 Reference Overview</A>, <A HREF="quickref_1pnp.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/quickref_1pnp.htm">Basic Telephony Services Reference</A>, <A HREF="func1_2zhh.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func1_2zhh.htm"><B>lineClose</B></A></P>
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