csdn_文档中心_在中visual studio _net 2003利用directshow播放媒体文件(四).htm

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            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 = 
            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>UpdateData(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-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN 
            style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN>CClientDC 
            dc(GetDlgItem(IDC_VW_FRAME));<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>dc.SetBkColor(RGB(0,0,0));<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>CRect 
            rc;<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>GetDlgItem(IDC_VW_FRAME)-&gt;GetClientRect(rc);<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>ClientToScreen(rc);<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>dc.FillRect(rc, 
            CBrush::FromHandle((HBRUSH)GetStockObject(BLACK_BRUSH)));<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>Invalidate();<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></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"><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">BOOL 
            CPlayWndDlg::Stop(<SPAN 
            style="COLOR: blue">void</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-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">{<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>IVideoWindow 
            *pVidWin = 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>HRESULT 
            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-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><SPAN 
            style="COLOR: blue">if</SPAN>(m_pMediaControl)<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>{<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: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            </SPAN>LONGLONG pos = 0;<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: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            </SPAN>hr = m_pMediaControl-&gt;Stop();<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: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            </SPAN>hr = m_pMediaSeeking-&gt;SetPositions(&amp;pos, 
            AM_SEEKING_AbsolutePositioning ,<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: 3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            </SPAN>&amp;pos, 
AM_SEEKING_NoPositioning);<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: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            </SPAN>m_pGraph-&gt;QueryInterface(IID_IVideoWindow, (<SPAN 
            style="COLOR: blue">void</SPAN> 
            **)&amp;pVidWin);<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: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            </SPAN>pVidWin-&gt;put_Visible(OAFALSE);<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: 2">&nbsp;&nbsp;&nbsp;&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"><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: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            </SPAN>GetDlgItem(IDC_PLAY_BUTTON)-&gt;EnableWindow(TRUE);<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: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            </SPAN>GetDlgItem(IDC_PAUSE_BUTTON)-&gt;EnableWindow(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-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: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            </SPAN>pVidWin-&gt;Release();<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: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            </SPAN><SPAN style="COLOR: blue">long</SPAN> 
            levCode;<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: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            </SPAN>m_pEvent-&gt;WaitForCompletion(INFINITE, 
            &amp;levCode);<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: 2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            </SPAN>m_pMediaControl-&gt;Release();<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