📄 csdn_文档中心_在中visual studio _net 2003利用directshow播放媒体文件(二).htm
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</SPAN>CoUninitialize();</SPAN></B><SPAN lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'"><o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'"><o:p> </o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'"><SPAN
style="mso-tab-count: 1"> </SPAN><SPAN
style="COLOR: blue">return</SPAN>
CWinApp::ExitInstance();<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">}</SPAN><SPAN
lang=EN-US style="FONT-FAMILY: 宋体"><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="FONT-FAMILY: 宋体"><SPAN
style="mso-tab-count: 1">
</SPAN><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US
style="FONT-FAMILY: 宋体"><o:p> </o:p></SPAN></P></TD></TR></TBODY></TABLE>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN
lang=EN-US style="FONT-FAMILY: 宋体">6.</SPAN><SPAN
style="FONT-FAMILY: 宋体">定义媒体控制成员变量<SPAN
lang=EN-US><o:p></o:p></SPAN></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN
lang=EN-US style="FONT-FAMILY: 宋体"><SPAN
style="mso-tab-count: 1"> </SPAN></SPAN><SPAN
style="FONT-FAMILY: 宋体">修改<SPAN
lang=EN-US>PlayWndDlg.h</SPAN>如下：<SPAN
lang=EN-US><o:p></o:p></SPAN></SPAN></FONT></P>
<TABLE border=1 cellPadding=0 cellSpacing=0 class=MsoTableGrid
style="BORDER-BOTTOM: medium none; BORDER-COLLAPSE: collapse; BORDER-LEFT: medium none; BORDER-RIGHT: medium none; BORDER-TOP: medium none; mso-border-alt: solid windowtext .5pt; mso-yfti-tbllook: 480; mso-padding-alt: 0cm 5.4pt 0cm 5.4pt; mso-border-insideh: .5pt solid windowtext; mso-border-insidev: .5pt solid windowtext">
<TBODY>
<TR
style="mso-yfti-irow: 0; mso-yfti-firstrow: yes; mso-yfti-lastrow: yes">
<TD
style="BACKGROUND-COLOR: transparent; BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; BORDER-TOP: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; PADDING-RIGHT: 5.4pt; PADDING-TOP: 0cm; WIDTH: 426.1pt; mso-border-alt: solid windowtext .5pt"
vAlign=top width=568>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US
style="FONT-FAMILY: 宋体"><o:p> </o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="COLOR: blue; FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">protected</SPAN><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">:<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'"><SPAN
style="mso-tab-count: 1"> </SPAN>HICON
m_hIcon;<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'"><o:p> </o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'"><SPAN
style="mso-tab-count: 1"> </SPAN><SPAN
style="COLOR: green">// </SPAN></SPAN><SPAN
style="COLOR: green; FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">生成的消息映射函数<SPAN
lang=EN-US><o:p></o:p></SPAN></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'"><SPAN
style="mso-tab-count: 1"> </SPAN><SPAN
style="COLOR: blue">virtual</SPAN> BOOL
OnInitDialog();<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'"><SPAN
style="mso-tab-count: 1"> </SPAN>afx_msg
<SPAN style="COLOR: blue">void</SPAN> OnSysCommand(UINT nID,
LPARAM lParam);<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'"><SPAN
style="mso-tab-count: 1"> </SPAN>afx_msg
<SPAN style="COLOR: blue">void</SPAN>
OnPaint();<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'"><SPAN
style="mso-tab-count: 1"> </SPAN>afx_msg
HCURSOR OnQueryDragIcon();<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'"><SPAN
style="mso-tab-count: 1">
</SPAN>DECLARE_MESSAGE_MAP()<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'"><o:p> </o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">//</SPAN><SPAN
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">和媒体控制相关的成员变量<SPAN
lang=EN-US><o:p></o:p></SPAN></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><B
style="mso-bidi-font-weight: normal"><SPAN lang=EN-US
style="COLOR: blue; FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">private</SPAN></B><B
style="mso-bidi-font-weight: normal"><SPAN lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">:<o:p></o:p></SPAN></B></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt 189pt; TEXT-ALIGN: left; TEXT-INDENT: -168pt; mso-layout-grid-align: none"><B
style="mso-bidi-font-weight: normal"><SPAN lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">IGraphBuilder
*m_pGraph;<SPAN style="mso-tab-count: 1">
</SPAN>//IGraphBuilder </SPAN></B><B
style="mso-bidi-font-weight: normal"><SPAN
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">接口提供了生成<SPAN
lang=EN-US>Filter Graph</SPAN>相<SPAN
lang=EN-US>//</SPAN>关的方法<SPAN
lang=EN-US><o:p></o:p></SPAN></SPAN></B></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt 189pt; TEXT-ALIGN: left; TEXT-INDENT: -168pt; mso-layout-grid-align: none"><B
style="mso-bidi-font-weight: normal"><SPAN lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">IMediaControl
*m_pMediaControl;<SPAN style="mso-tab-count: 1">
</SPAN>//IMediaControl </SPAN></B><B
style="mso-bidi-font-weight: normal"><SPAN
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">接口提供了控制流经<SPAN
lang=EN-US>Filter //Graph</SPAN>数据流的相关方法<SPAN
lang=EN-US><o:p></o:p></SPAN></SPAN></B></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt 189pt; TEXT-ALIGN: left; TEXT-INDENT: -168pt; mso-layout-grid-align: none"><B
style="mso-bidi-font-weight: normal"><SPAN lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">IMediaEventEx
*m_pEvent;<SPAN style="mso-tab-count: 1">
</SPAN>//IMediaEventEx </SPAN></B><B
style="mso-bidi-font-weight: normal"><SPAN
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">继承自<SPAN
lang=EN-US>IMediaEvent</SPAN>，提供了从<SPAN lang=EN-US>//Filter
Graph </SPAN>管理器获取事件消息的方法<SPAN
lang=EN-US><o:p></o:p></SPAN></SPAN></B></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt 189pt; TEXT-ALIGN: left; TEXT-INDENT: -168pt; mso-layout-grid-align: none"><B
style="mso-bidi-font-weight: normal"><SPAN lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">IMediaSeeking
*m_pMediaSeeking;<SPAN style="mso-tab-count: 1">
</SPAN>//IMediaSeeking </SPAN></B><B
style="mso-bidi-font-weight: normal"><SPAN
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">提供了控制流的播放位置和播放<SPAN
lang=EN-US>//</SPAN>速度的方法<SPAN
lang=EN-US><o:p></o:p></SPAN></SPAN></B></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><B
style="mso-bidi-font-weight: normal"><SPAN lang=EN-US
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