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<TITLE>LINEMEDIACONTROLCALLSTATE</TITLE>
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<H1><A NAME="_tapi2_linemediacontrolcallstate_str"></A>LINEMEDIACONTROLCALLSTATE</H1>
<P>The <B>LINEMEDIACONTROLCALLSTATE</B> structure describes a media action to be executed when detecting transitions into one or more call states. The <A HREF="func2_4bzg.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func2_4bzg.htm"><B>lineSetMediaControl</B></A> and <A HREF="javascript:if(confirm('http://msdn.microsoft.com/library/psdk/tspi21/func2_4h7w.htm \n\n这个文件不能通过 Teleport Pro 取回, 因为 地址在一个域或为它的开始地址设定的边界的外部路径上. \n\n你想从服务器打开它吗?'))window.location='http://msdn.microsoft.com/library/psdk/tspi21/func2_4h7w.htm'" tppabs="http://msdn.microsoft.com/library/psdk/tspi21/func2_4h7w.htm"><B>TSPI_lineSetMediaControl</B></A> functions use this structure.</P>
<PRE class=syntax>typedef struct linemediacontrolcallstate_tag {
DWORD dwCallStates;
DWORD dwMediaControl;
} LINEMEDIACONTROLCALLSTATE, FAR *LPLINEMEDIACONTROLCALLSTATE; </PRE>
<H4>Members</H4>
<DL>
<DT><B>dwCallStates</B> </DT>
<DD>Specifies one or more call states. This member uses one of the <A HREF="constnts_6t0z.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/constnts_6t0z.htm">LINECALLSTATE_ Constants</A>.</DD>
<DT><B>dwMediaControl</B> </DT>
<DD>The media control action. This member uses one of the <A HREF="constnts_984z.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/constnts_984z.htm">LINEMEDIACONTROL_ Constants</A>.
</DD>
</DL>
<H4>Remarks</H4>
<P>This structure may not be extended.</P>
<P>The <B>LINEMEDIACONTROLCALLSTATE</B> structure defines a triple <call state(s), media-control action>. An array of these triples is passed to the <A HREF="func2_4bzg.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func2_4bzg.htm"><B>lineSetMediaControl</B></A> function to set the media control actions triggered by the transition to the call state of the given call. When a transition to a listed call state is detected, the corresponding action on the media stream is invoked. </P>
<H4><A HREF="javascript:if(confirm('http://msdn.microsoft.com/library/psdk/sdkintro/guide_927n.htm \n\n这个文件不能通过 Teleport Pro 取回, 因为 地址在一个域或为它的开始地址设定的边界的外部路径上. \n\n你想从服务器打开它吗?'))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 1.4 or later.<BR>
<B> Header: </B>Declared in Tapi.h.</P>
<H4>See Also</H4>
<P><A HREF="func1_8ir7.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func1_8ir7.htm"><B>lineGenerateDigits</B></A>, <A HREF="func2_4bzg.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func2_4bzg.htm"><B>lineSetMediaControl</B></A>, <A HREF="javascript:if(confirm('http://msdn.microsoft.com/library/psdk/tspi21/func2_4h7w.htm \n\n这个文件不能通过 Teleport Pro 取回, 因为 地址在一个域或为它的开始地址设定的边界的外部路径上. \n\n你想从服务器打开它吗?'))window.location='http://msdn.microsoft.com/library/psdk/tspi21/func2_4h7w.htm'" tppabs="http://msdn.microsoft.com/library/psdk/tspi21/func2_4h7w.htm"><B>TSPI_lineSetMediaControl</B></A> </P>
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