多媒体编程

开发平台：
Visual C++

VideoPlayerDlg.cpp：源码内容
							// VideoPlayerDlg.cpp : implementation file
//
#include "stdafx.h"
#include "VideoPlayer.h"
#include "VideoPlayerDlg.h"
#include "Usage.h"
#include "AboutDeveloper.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CVideoPlayerDlg dialog
CVideoPlayerDlg::CVideoPlayerDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CVideoPlayerDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CVideoPlayerDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
	m_csPathName = _T("");
}
void CVideoPlayerDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CVideoPlayerDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	DDX_Control(pDX, IDC_MediaPlay_OCX, m_MediaPlayer);
	//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CVideoPlayerDlg, CDialog)
	//{{AFX_MSG_MAP(CVideoPlayerDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_COMMAND(IDC_FILE_OPEN, OnFileOpen)
	ON_COMMAND(IDC_FILE_QUIT, OnFileQuit)
	ON_COMMAND(IDC_HELP_USAGE, OnHelpUsage)
	ON_COMMAND(IDC_HELP_ABOUT_DEVELOPER, OnHelpAboutDeveloper)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CVideoPlayerDlg message handlers
BOOL CVideoPlayerDlg::OnInitDialog()
{
	CDialog::OnInitDialog();
	// 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
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}
// 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 CVideoPlayerDlg::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 CVideoPlayerDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}
void CVideoPlayerDlg::OnFileOpen()
{
  	// TODO: Add your command handler code here
	char szFileFilter[]="All Music Files(*.*)|*.*||";
	CFileDialog FileOpenDlg(TRUE,NULL,NULL,OFN_HIDEREADONLY,szFileFilter/*, this*/);
	if( FileOpenDlg.DoModal() == IDOK )
	{
		m_csPathName = FileOpenDlg.GetPathName();//获取路径名(包括文件名)
	}
	m_MediaPlayer.SetUrl(m_csPathName);	//为播放器设定文件的绝对路径名。
}
void CVideoPlayerDlg::OnFileQuit() 
{
	// TODO: Add your command handler code here  
	CDialog::OnCancel(); //退出程序	
}
void CVideoPlayerDlg::OnHelpUsage() 
{
	// TODO: Add your command handler code here
	CUsage UsageDlg;
	UsageDlg.DoModal(); //显示"使用说明"对话框
}
void CVideoPlayerDlg::OnHelpAboutDeveloper() 
{
	// TODO: Add your command handler code here
	CAboutDeveloper AboutDeveloperDlg;
	AboutDeveloperDlg.DoModal();//显示"关于开发者"对话框
    //AboutDeveloperDlg.Create(IDC_HELP_ABOUT_DEVELOPER,this);
    //AboutDeveloperDlg.ShowWindow(SW_SHOW);
}

						