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<H1><A NAME="_tapi2_linegetagentstatus"></A>lineGetAgentStatus</H1>
<P>The <B>lineGetAgentStatus</B> function obtains the agent-related status on the specified address. </P>
<PRE class=syntax><B>LONG WINAPI lineGetAgentStatus(
HLINE</B><I> hLine</I><B>, </B>
<B> DWORD</B><I> dwAddressID</I><B>, </B>
<B> LPLINEAGENTSTATUS</B><I> lpAgentStatus </I>
<B>);</B></PRE>
<H4>Parameters</H4>
<DL>
<DT><I>hLine</I> </DT>
<DD>A handle to the open line device. </DD>
<DT><I>dwAddressID</I> </DT>
<DD>The address on the open line device whose agent status is to be queried. An address identifier is permanently associated with an address; the identifier remains constant across operating system upgrades.</DD>
<DT><I>lpAgentStatus</I> </DT>
<DD>A pointer to a variably sized structure of type <A HREF="struc1_7wqa.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/struc1_7wqa.htm"><B>LINEAGENTSTATUS</B></A>. Upon successful completion of the request, this structure is filled with agent status information. Prior to calling <B>lineGetAgentStatus</B>, the application should set the <B>dwTotalSize</B> member of this structure to indicate the amount of memory available to TAPI for returning information.
</DD>
</DL>
<H4>Return Values</H4>
<P>Returns a positive request identifier if the asynchronous operation starts; otherwise, one of these negative error values: </P>
<P>LINEERR_INVALADDRESSID, LINEERR_INVALLINEHANDLE, LINEERR_INVALPOINTER, LINEERR_NOMEM, LINEERR_OPERATIONFAILED, LINEERR_OPERATIONUNAVAIL, LINEERR_RESOURCEUNAVAIL, LINEERR_STRUCTURETOOSMALL, LINEERR_UNINITIALIZED.</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.<BR>
<B> Library: </B>Use Tapi32.lib.<BR>
<B> Unicode: </B>Implemented as Unicode and ANSI versions on all platforms.</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_6gvn.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/quickref_6gvn.htm">Supplementary Line Service Functions</A>, <A HREF="struc1_7wqa.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/struc1_7wqa.htm"><B>LINEAGENTSTATUS</B></A></P>
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