📄 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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lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">BOOL
CPlayWndApp::InitInstance()<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'">如果一个运行在<SPAN
lang=EN-US> Windows XP </SPAN>上的应用程序清单指定要<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: 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'">使用<SPAN
lang=EN-US> ComCtl32.dll </SPAN>版本<SPAN lang=EN-US> 6
</SPAN>或更高版本来启用可视化方式，<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: 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'">则需要<SPAN
lang=EN-US> InitCommonControls()</SPAN>。否则，将无法创建窗口。<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>InitCommonControls();<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"><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'"><SPAN
style="mso-tab-count: 1"> </SPAN><SPAN
style="COLOR: green">//</SPAN></SPAN></B><B
style="mso-bidi-font-weight: normal"><SPAN
style="COLOR: green; FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">初始化<SPAN
lang=EN-US>COM</SPAN>接口<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
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>HRESULT hr
= CoInitialize(NULL);<o:p></o:p></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
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">if</SPAN>
(FAILED(hr))<o:p></o:p></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
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>{<o:p></o:p></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
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: 2">
</SPAN>TRACE("ERROR - Could not initialize COM
library.\n");<o:p></o:p></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
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: 2">
</SPAN><SPAN style="COLOR: blue">return</SPAN>
FALSE;<o:p></o:p></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
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>}<o:p></o:p></SPAN></B></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>CWinApp::InitInstance();<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 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
style="mso-tab-count: 1">
</SPAN>AfxEnableControlContainer();<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>
<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"><SPAN
style="FONT-FAMILY: 宋体"><FONT size=3>修改<SPAN
lang=EN-US>PlayWnd.cpp</SPAN>添加卸载<SPAN
lang=EN-US>COM</SPAN>代码，注意需要对虚函数<SPAN
lang=EN-US>ExitInstance</SPAN>进行重载<SPAN
lang=EN-US><o:p></o:p></SPAN></FONT></SPAN></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'">int</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'">
CPlayFileApp::ExitInstance()<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">// TODO: </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'">在此添加专用代码和<SPAN
lang=EN-US>/</SPAN>或调用基类<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="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></B><B
style="mso-bidi-font-weight: normal"><SPAN
style="COLOR: green; FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">关闭<SPAN
lang=EN-US>COM<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
style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'"><SPAN
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