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📄 directshow帮助文档学习笔记之directshow event notification codes - zhangxinbin的专栏 - csdnblog.htm

📁 directshow的开发过程的详细介绍
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      <P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan" 
      align=left><SPAN lang=EN-US 
      style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">Indicates 
      that playback has been stopped. The DVD Navigator has completed playback 
      of the title and did not find any other branching instruction for 
      subsequent playback.<O:P></O:P></SPAN></P></TD></TR>
  <TR style="mso-yfti-irow: 21">
    <TD 
    style="PADDING-RIGHT: 3.75pt; PADDING-LEFT: 3.75pt; PADDING-BOTTOM: 3.75pt; PADDING-TOP: 3.75pt" 
    vAlign=top>
      <P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan" 
      align=left><SPAN lang=EN-US 
      style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><A 
      href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/ec_dvd_playperiod_autostop.htm">EC_DVD_PLAYPERIOD_AUTOSTOP</A><O:P></O:P></SPAN></P></TD>
    <TD 
    style="PADDING-RIGHT: 3.75pt; PADDING-LEFT: 3.75pt; PADDING-BOTTOM: 3.75pt; PADDING-TOP: 3.75pt" 
    vAlign=top>
      <P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan" 
      align=left><SPAN lang=EN-US 
      style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">Indicates 
      that the Navigator has finished playing the segment specified in a call to 
      <SPAN 
    class=SpellE>PlayPeriodInTitleAutoStop</SPAN>.<O:P></O:P></SPAN></P></TD></TR>
  <TR style="mso-yfti-irow: 22">
    <TD 
    style="PADDING-RIGHT: 3.75pt; PADDING-LEFT: 3.75pt; PADDING-BOTTOM: 3.75pt; PADDING-TOP: 3.75pt" 
    vAlign=top>
      <P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan" 
      align=left><SPAN lang=EN-US 
      style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><A 
      href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/ec_dvd_still_off.htm">EC_DVD_STILL_OFF</A> 
      <O:P></O:P></SPAN></P></TD>
    <TD 
    style="PADDING-RIGHT: 3.75pt; PADDING-LEFT: 3.75pt; PADDING-BOTTOM: 3.75pt; PADDING-TOP: 3.75pt" 
    vAlign=top>
      <P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan" 
      align=left><SPAN lang=EN-US 
      style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">Signals 
      the end of any still. <O:P></O:P></SPAN></P></TD></TR>
  <TR style="mso-yfti-irow: 23">
    <TD 
    style="PADDING-RIGHT: 3.75pt; PADDING-LEFT: 3.75pt; PADDING-BOTTOM: 3.75pt; PADDING-TOP: 3.75pt" 
    vAlign=top>
      <P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan" 
      align=left><SPAN lang=EN-US 
      style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><A 
      href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/ec_dvd_still_on.htm">EC_DVD_STILL_ON</A> 
      <O:P></O:P></SPAN></P></TD>
    <TD 
    style="PADDING-RIGHT: 3.75pt; PADDING-LEFT: 3.75pt; PADDING-BOTTOM: 3.75pt; PADDING-TOP: 3.75pt" 
    vAlign=top>
      <P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan" 
      align=left><SPAN lang=EN-US 
      style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">Signals 
      the beginning of any still. <O:P></O:P></SPAN></P></TD></TR>
  <TR style="mso-yfti-irow: 24">
    <TD 
    style="PADDING-RIGHT: 3.75pt; PADDING-LEFT: 3.75pt; PADDING-BOTTOM: 3.75pt; PADDING-TOP: 3.75pt" 
    vAlign=top>
      <P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan" 
      align=left><SPAN lang=EN-US 
      style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><A 
      href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/ec_dvd_subpicture_stream_change.htm">EC_DVD_SUBPICTURE_STREAM_CHANGE</A> 
      <O:P></O:P></SPAN></P></TD>
    <TD 
    style="PADDING-RIGHT: 3.75pt; PADDING-LEFT: 3.75pt; PADDING-BOTTOM: 3.75pt; PADDING-TOP: 3.75pt" 
    vAlign=top>
      <P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan" 
      align=left><SPAN lang=EN-US 
      style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">Signals 
      that the current <SPAN class=SpellE>subpicture</SPAN> stream number 
      changed for the main title. <O:P></O:P></SPAN></P></TD></TR>
  <TR style="mso-yfti-irow: 25">
    <TD 
    style="PADDING-RIGHT: 3.75pt; PADDING-LEFT: 3.75pt; PADDING-BOTTOM: 3.75pt; PADDING-TOP: 3.75pt" 
    vAlign=top>
      <P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan" 
      align=left><SPAN lang=EN-US 
      style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><A 
      href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/ec_dvd_title_change.htm">EC_DVD_TITLE_CHANGE</A> 
      <O:P></O:P></SPAN></P></TD>
    <TD 
    style="PADDING-RIGHT: 3.75pt; PADDING-LEFT: 3.75pt; PADDING-BOTTOM: 3.75pt; PADDING-TOP: 3.75pt" 
    vAlign=top>
      <P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan" 
      align=left><SPAN lang=EN-US 
      style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">Indicates 
      when the current title number changes. <O:P></O:P></SPAN></P></TD></TR>
  <TR style="mso-yfti-irow: 26">
    <TD 
    style="PADDING-RIGHT: 3.75pt; PADDING-LEFT: 3.75pt; PADDING-BOTTOM: 3.75pt; PADDING-TOP: 3.75pt" 
    vAlign=top>
      <P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan" 
      align=left><SPAN lang=EN-US 
      style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><A 
      href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/ec_dvd_valid_uops_change.htm">EC_DVD_VALID_UOPS_CHANGE</A> 
      <O:P></O:P></SPAN></P></TD>
    <TD 
    style="PADDING-RIGHT: 3.75pt; PADDING-LEFT: 3.75pt; PADDING-BOTTOM: 3.75pt; PADDING-TOP: 3.75pt" 
    vAlign=top>
      <P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan" 
      align=left><SPAN lang=EN-US 
      style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">Signals 
      that the available set of <A 
      href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/idvdcontrol2interface.htm"><STRONG>IDvdControl2</STRONG></A> 
      interface methods has changed. <O:P></O:P></SPAN></P></TD></TR>
  <TR style="mso-yfti-irow: 27; mso-yfti-lastrow: yes">
    <TD 
    style="PADDING-RIGHT: 3.75pt; PADDING-LEFT: 3.75pt; PADDING-BOTTOM: 3.75pt; PADDING-TOP: 3.75pt" 
    vAlign=top>
      <P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan" 
      align=left><SPAN lang=EN-US 
      style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><A 
      href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/ec_dvd_warning.htm">EC_DVD_WARNING</A> 
      <O:P></O:P></SPAN></P></TD>
    <TD 
    style="PADDING-RIGHT: 3.75pt; PADDING-LEFT: 3.75pt; PADDING-BOTTOM: 3.75pt; PADDING-TOP: 3.75pt" 
    vAlign=top>
      <P class=MsoNormal style="TEXT-ALIGN: left; mso-pagination: widow-orphan" 
      align=left><SPAN lang=EN-US 
      style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">Signals 
      a DVD warning condition. <O:P></O:P></SPAN></P></TD></TR></TBODY></TABLE>
<P class=MsoNormal><SPAN lang=EN-US><O:P></O:P></SPAN></P>
<P class=MsoNormal 
style="TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-outline-level: 1" 
align=left><STRONG><SPAN lang=EN-US 
style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 18.0pt">Event 
Notification Codes<O:P></O:P></SPAN></STRONG></P>
<P class=MsoNormal 
style="TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" 
align=left><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: fuchsia; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">This 
<SPAN class=GramE>sections</SPAN> lists the <A title=DirectShow 
href="http://blog.csdn.net/zhangxinbin/archive/2006/10/22/DirectShow">DirectShow</A> 
events that are not specific to DVD.</SPAN><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"> 
For events specific to DVD, see <A 
href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/dvdeventnotificationcodes.htm">DVD 
Event Notification Codes</A>.<O:P></O:P></SPAN></P>
<P class=MsoNormal 
style="TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" 
align=left><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: fuchsia; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">Filters 
send events to the <A title=Filter 
href="http://blog.csdn.net/zhangxinbin/archive/2006/10/22/Filter">Filter</A> <A 
title=Graph 
href="http://blog.csdn.net/zhangxinbin/archive/2006/10/22/Graph">Graph</A> 
Manager by calling the <A 
href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/imediaeventsinknotify.htm"><STRONG><SPAN 
style="COLOR: fuchsia">IMediaEventSink::Notify</SPAN></STRONG></A> method. The 
<A title=Filter 
href="http://blog.csdn.net/zhangxinbin/archive/2006/10/22/Filter">Filter</A> <A 
title=Graph 
href="http://blog.csdn.net/zhangxinbin/archive/2006/10/22/Graph">Graph</A> 
Manager handles some events and queues others for the application. The 
application retrieves them by calling the <A 
href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/imediaeventgetevent.htm"><STRONG><SPAN 
style="COLOR: fuchsia">IMediaEvent::GetEvent</SPAN></STRONG></A> method. 
<O:P></O:P></SPAN></P>
<P class=MsoNormal 
style="TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" 
align=left><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: fuchsia; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">In 
the sections that follow, each entry lists the event code, the meaning of the 
event parameters, and the <A title=Filter 
href="http://blog.csdn.net/zhangxinbin/archive/2006/10/22/Filter">Filter</A> <A 
title=Graph 
href="http://blog.csdn.net/zhangxinbin/archive/2006/10/22/Graph">Graph</A> 
Manager's default action for the event, if any. To override the default action, 
call <A 
href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/imediaeventcanceldefaulthandling.htm"><STRONG><SPAN 
style="COLOR: fuchsia">IMediaEvent::CancelDefaultHandling</SPAN></STRONG></A>. 
Event codes are defined in the header files <SPAN class=SpellE>Evcode.h</SPAN> 
and <SPAN class=SpellE>Audevcod.h</SPAN>. If there is no default action, the <A 
title=Filter 
href="http://blog.csdn.net/zhangxinbin/archive/2006/10/22/Filter">Filter</A> <A 
title=Graph 
href="http://blog.csdn.net/zhangxinbin/archive/2006/10/22/Graph">Graph</A> 
Manager automatically forwards the event to the application (through the event 
queue). <O:P></O:P></SPAN></P>
<P class=MsoNormal 
style="TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" 
align=left><STRONG><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">Custom 
Events</SPAN></STRONG><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><O:P></O:P></SPAN></P>
<P class=MsoNormal 
style="TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" 
align=left><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: fuchsia; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">Filters 
can define custom events with event codes in the range EC_USER and higher. The 
<A title=Filter 
href="http://blog.csdn.net/zhangxinbin/archive/2006/10/22/Filter">Filter</A> <A 
title=Graph 
href="http://blog.csdn.net/zhangxinbin/archive/2006/10/22/Graph">Graph</A> 
Manager will place these directly in the event queue.</SPAN><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"> 
However, the following caveats apply: <O:P></O:P></SPAN></P>
<UL type=disc>
  <LI class=MsoNormal 
  style="TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt"><SPAN 
  lang=EN-US 
  style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">The 
  <A title=Filter 
  href="http://blog.csdn.net/zhangxinbin/archive/2006/10/22/Filter">Filter</A> 
  <A title=Graph 
  href="http://blog.csdn.net/zhangxinbin/archive/2006/10/22/Graph">Graph</A> 
  Manager cannot free the event parameters using the normal <A 
  href="mk:@MSITStore:C:\DXSDK\Doc\DirectX9\DirectX9_c.chm::/directx/htm/imediaeventfreeeventparams.htm"><STRONG>IMediaEvent::FreeEventParams</STRONG></A>
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