?? func1_4377.htm
字號:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<HTML DIR="LTR"><HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; CHARSET=iso8859-1">
</HEAD>
<TITLE>lineGetLineDevStatus</TITLE>
<SCRIPT SRC="/library/psdk/linkcss.js"></SCRIPT>
<META NAME="MS-HKWD" CONTENT="lineGetLineDevStatus">
<META NAME="MS-HAID" CONTENT="_tapi2_linegetlinedevstatus">
</HEAD>
<BODY TOPMARGIN="0">
<!--TOOLBAR_START-->
<!--TOOLBAR_EXEMPT-->
<!--TOOLBAR_END-->
<!--SYNC_START-->
<script language="JavaScript" src='/library/synch.js'></script>
<!--SYNC_END-->
<H1><A NAME="_tapi2_linegetlinedevstatus"></A>lineGetLineDevStatus</H1>
<P>The <B>lineGetLineDevStatus</B> function enables an application to query the specified open line device for its current status. </P>
<PRE class=syntax><B>LONG WINAPI lineGetLineDevStatus(
HLINE</B><I> hLine</I><B>, </B>
<B> LPLINEDEVSTATUS</B><I> lpLineDevStatus </I>
<B>);</B></PRE>
<H4>Parameters</H4>
<DL>
<DT><I>hLine</I> </DT>
<DD>A handle to the open line device to be queried. </DD>
<DT><I>lpLineDevStatus</I> </DT>
<DD>A pointer to a variably sized data structure of type <A HREF="struc2_40oi.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/struc2_40oi.htm"><B>LINEDEVSTATUS</B></A>. Upon successful completion of the request, this structure is filled with the line's device status. Prior to calling <B>lineGetLineDevStatus</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 zero if the request succeeds or a negative error number if an error occurs. Possible return values are: </P>
<P>LINEERR_INVALLINEHANDLE, LINEERR_RESOURCEUNAVAIL, LINEERR_INVALPOINTER, LINEERR_STRUCTURETOOSMALL, LINEERR_NOMEM, LINEERR_UNINITIALIZED, LINEERR_OPERATIONFAILED, LINEERR_OPERATIONUNAVAIL.</P>
<H4>Remarks</H4>
<P>An application uses <B>lineGetLineDevStatus</B> to query the line device for its current line status. This status information applies globally to all addresses on the line device. Use <A HREF="func1_5b5f.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func1_5b5f.htm"><B>lineGetAddressStatus</B></A> to determine status information about a specific address on a line. </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.<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_1pnp.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/quickref_1pnp.htm">Basic Telephony Services Reference</A>, <A HREF="struc2_40oi.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/struc2_40oi.htm"><B>LINEDEVSTATUS</B></A>,<B> <A HREF="func1_5b5f.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func1_5b5f.htm">lineGetAddressStatus</A></B> </P>
<DIV CLASS="footer">Built on Monday, August 14, 2000</DIV>
<!--FOOTER_START-->
<DIV CLASS="footer" STYLE="color:#000000;font-size:90%;">
<A HREF="mailto:sdkfdbk@microsoft.com">Send feedback</A> to the Platform SDK.</P>
<P><A HREF="javascript:if(confirm('http://msdn.microsoft.com/isapi/gomscom.asp?TARGET=/info/cpyright.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/isapi/gomscom.asp?TARGET=/info/cpyright.htm'" tppabs="http://msdn.microsoft.com/isapi/gomscom.asp?TARGET=/info/cpyright.htm" TARGET="_top">© 1999 Microsoft Corporation. All rights reserved. Terms of use.</A></P>
</DIV>
<!--FOOTER_END-->
</BODY>
</HTML>
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -