csdn_文档中心_在中visual studio _net 2003利用directshow播放媒体文件(三).htm

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            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 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-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">CPlayWndDlg::CPlayWndDlg(CWnd* 
                  pParent <SPAN 
                  style="COLOR: green">/*=NULL*/</SPAN>)<?xml:namespace prefix = 
                  o ns = "urn:schemas-microsoft-com:office:office" 
                  /><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-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN>: 
                  CDialog(CPlayWndDlg::IDD, pParent)<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-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">{<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-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN>m_hIcon = 
                  AfxGetApp()-&gt;LoadIcon(IDR_MAINFRAME);<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-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><o:p>&nbsp;</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-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; 
                  </SPAN>m_pGraph<SPAN 
                  style="mso-tab-count: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                  </SPAN>= 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-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; 
                  </SPAN>m_pMediaControl = 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-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; 
                  </SPAN>m_pEvent<SPAN 
                  style="mso-tab-count: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                  </SPAN>= 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-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; 
                  </SPAN>m_pMediaSeeking = 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-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><o:p>&nbsp;</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-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; 
                  </SPAN>m_strMediaFile = "";<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-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN>m_isPlaying 
                  = 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"><SPAN 
                  lang=EN-US 
                  style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">}<o:p></o:p></SPAN></P>
                  <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN 
                  lang=EN-US><o:p>&nbsp;</o:p></SPAN></P></TD></TR></TBODY></TABLE>
            <P class=MsoNormal 
            style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><FONT size=3><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">由于一些和窗体控制有关的初始化代码不能放在构造函数中进行，我们将其放在</SPAN><SPAN 
            lang=EN-US>CPlayWndDlg::OnInitDialog()</SPAN><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">中，我们必须在此必须对</SPAN><SPAN 
            lang=EN-US>CPlayWndDlg</SPAN><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">添加</SPAN></FONT><SPAN 
            lang=EN-US 
            style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">WS_CLIPCHILDREN</SPAN><FONT 
            size=3><SPAN lang=EN-US> </SPAN><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的</SPAN><SPAN 
            lang=EN-US>Style</SPAN><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，因为在我们的应用中把视频窗体作为</SPAN><SPAN 
            lang=EN-US>CPlayWndDlg</SPAN><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的一个子窗体来使用的，这是非常重要的，许多开发人员在刚开始使用</SPAN><SPAN 
            lang=EN-US>DirectShow</SPAN><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">时，父窗体的</SPAN><SPAN 
            lang=EN-US>Style</SPAN><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">没有设置正确，造成视频不能正确显示，代码如下：</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 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-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN><SPAN 
                  style="COLOR: green">// </SPAN></SPAN><SPAN 
                  style="COLOR: green; FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动<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-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN><SPAN 
                  style="COLOR: green">//<SPAN style="mso-spacerun: yes">&nbsp; 
                  </SPAN></SPAN></SPAN><SPAN 
                  style="COLOR: green; FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">执行此操作<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-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; 
                  </SPAN>SetIcon(m_hIcon, TRUE);<SPAN 
                  style="mso-tab-count: 3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                  </SPAN><SPAN style="COLOR: green">// </SPAN></SPAN><SPAN 
                  style="COLOR: green; FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">设置大图标<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-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; 
                  </SPAN>SetIcon(m_hIcon, FALSE);<SPAN 
                  style="mso-tab-count: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                  </SPAN><SPAN style="COLOR: green">// </SPAN></SPAN><SPAN 
                  style="COLOR: green; FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">设置小图标<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="COLOR: green; FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><o:p>&nbsp;</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-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN><SPAN 
                  style="COLOR: green">// TODO: </SPAN></SPAN><SPAN 
                  style="COLOR: green; FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">在此添加额外的初始化代码<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-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN><B 
                  style="mso-bidi-font-weight: normal">ModifyStyle(0, 
                  WS_CLIPCHILDREN);<o:p></o:p></B></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-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; 
                  </SPAN>((CEdit*)GetDlgItem(IDC_MEDIAFILE_EDIT))-&gt;SetReadOnly(TRUE);</SPAN></B><SPAN 
                  lang=EN-US 
                  style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp; 
                  </SPAN><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-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN 
                  style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN><SPAN 
                  style="COLOR: blue">return</SPAN> TRUE;<SPAN 
                  style="mso-spacerun: yes">&nbsp; </SPAN><SPAN 
                  style="COLOR: green">// </SPAN></SPAN><SPAN 
                  style="COLOR: green; FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">除非设置了控件的焦点，否则返回<SPAN 
                  lang=EN-US> TRUE<o:p></o:p></SPAN></SPAN></P>
                  <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN 
                  lang=EN-US 
                  style="FONT-FAMILY: 新宋体; FONT-SIZE: 10pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">}</SPAN></P></TD></TR></TBODY></TABLE>
            <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN 
            lang=EN-US><SPAN 
            style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            </SPAN></SPAN><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">添加相应的清除代码，重载</SPAN><SPAN 
            lang=EN-US>CPlayWndDlg</SPAN><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的</SPAN><SPAN 
            lang=EN-US>DestoryWindow</SPAN><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">方法，如下：</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 align=left class=MsoNormal 
                  style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN 
                  lang=EN-US
1234

csdn_文档中心_在中visual studio _net 2003利用directshow播放媒体文件(三).htm - 源码说明

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