MCI 视频播放

很多视频文件无法正常播放

BOOL CAVIPlayerDlg::OnInitDialog()

{
CDialog::OnInitDialog();


// Add "About..." menu item to system menu.


// IDM_ABOUTBOX must be in the system command range.
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000);


CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
{
CString strAboutMenu;
strAboutMenu.LoadString(IDS_ABOUTBOX);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
}


// Set the icon for this dialog.  The framework does this automatically
//  when the application's main window is not a dialog
SetIcon(m_hIcon, TRUE);// Set big icon
SetIcon(m_hIcon, FALSE);// Set small icon

// TODO: Add extra initialization here
m_hAviWnd = MCIWndCreate(m_stcCarry.GetSafeHwnd(),
AfxGetInstanceHandle(),
WS_CHILD | WS_VISIBLE|MCIWNDF_NOMENU, m_strAviFile);
return TRUE;  // return TRUE  unless you set the focus to a control
}


void CAVIPlayerDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}


// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.


void CAVIPlayerDlg::OnPaint() 
{
if (IsIconic())
{
CPaintDC dc(this); // device context for painting


SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);


// Center icon in client rectangle
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;


// Draw the icon
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}


// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CAVIPlayerDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}


void CAVIPlayerDlg::OnButtonPlay() 
{
// TODO: Add your control notification handler code here
UpdateData(TRUE);
if(m_strAviFile.IsEmpty())
{
AfxMessageBox("请选择需要播放的AVI文件");
return;
}
MCIWndStop(m_hAviWnd);
MCIWndOpen(m_hAviWnd, (LPCTSTR)m_strAviFile, 0);
MCIWndPlay(m_hAviWnd);
}


void CAVIPlayerDlg::OnButtonFind() 
{
// TODO: Add your control notification handler code here
CFileDialog dlg(TRUE, NULL, NULL, 
               OFN_HIDEREADONLY|OFN_OVERWRITEPROMPT, 
"AVI文件(*.avi)|*.avi||");
if(dlg.DoModal() == IDOK)
{
m_strAviFile = dlg.GetPathName();
UpdateData(FALSE);
}
}


void CAVIPlayerDlg::OnClose() 
{
// TODO: Add your message handler code here and/or call default
MCIWndStop(m_hAviWnd);
MCIWndDestroy(m_hAviWnd);
CDialog::OnClose();
}