?? func2_52ek.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>lineSecureCall</TITLE>
<SCRIPT SRC="/library/psdk/linkcss.js"></SCRIPT>
<META NAME="MS-HKWD" CONTENT="lineSecureCall">
<META NAME="MS-HAID" CONTENT="_tapi2_linesecurecall">
</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_linesecurecall"></A>lineSecureCall</H1>
<P>The <B>lineSecureCall</B> function secures the call from any interruptions or interference that can affect the call's media stream. </P>
<PRE class=syntax><B>LONG WINAPI lineSecureCall(
HCALL</B><I> hCall </I>
<B>);</B></PRE>
<H4>Parameters</H4>
<DL>
<DT><I>hCall</I> </DT>
<DD>A handle to the call to be secured. The application must be an owner of the call. The call state of <I>hCall</I> can be any state.
</DD>
</DL>
<H4>Return Values</H4>
<P>Returns a positive request identifier if the function is completed asynchronously, or a negative error number if an error occurs. The <I>dwParam2</I> parameter of the corresponding <A HREF="msgs_65mh.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/msgs_65mh.htm">LINE_REPLY</A> message is zero if the function succeeds or it is a negative error number if an error occurs. Possible return values are: </P>
<P>LINEERR_INVALCALLHANDLE, LINEERR_OPERATIONUNAVAIL, LINEERR_INVALCALLSTATE, LINEERR_OPERATIONFAILED, LINEERR_NOMEM, LINEERR_RESOURCEUNAVAIL, LINEERR_NOTOWNER, LINEERR_UNINITIALIZED.</P>
<H4>Remarks</H4>
<P>A call can be secured to avoid interference. For example, in an analog environment, call-waiting tones can destroy a fax or modem session on the original call. The <B>lineSecureCall</B> function allows an existing call to be secured. The <A HREF="func1_7mgc.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func1_7mgc.htm"><B>lineMakeCall</B></A> function provides the option to secure the call from the time of call setup. The securing of a call remains in effect for the duration of the call. </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="javascript:if(confirm('http://msdn.microsoft.com/library/psdk/tapi3/tapiovr2_7boz.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/tapi3/tapiovr2_7boz.htm'" tppabs="http://msdn.microsoft.com/library/psdk/tapi3/tapiovr2_7boz.htm">Secure a Session</A> Overview, <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="msgs_65mh.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/msgs_65mh.htm">LINE_REPLY</A>, <A HREF="func1_7mgc.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func1_7mgc.htm"><B>lineMakeCall</B></A></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 + -