多媒体

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Visual C++

ServerDlg.cpp：源码内容
							// ServerDlg.cpp : implementation file
//
#include "stdafx.h"
#include "Server.h"
#include "ServerDlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About
class CAboutDlg : public CDialog
{
public:
	CAboutDlg();
// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL
// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CServerDlg dialog
CServerDlg::CServerDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CServerDlg::IDD, pParent)
	
{
	//{{AFX_DATA_INIT(CServerDlg)
		// 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_DPServer = new CDPServer(this);
	m_hMediaFile = INVALID_HANDLE_VALUE;
}
void CServerDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CServerDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CServerDlg, CDialog)
	//{{AFX_MSG_MAP(CServerDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BTN_OPEN, OnBtnOpen)
	ON_BN_CLICKED(IDC_BTN_START, OnBtnStart)
	ON_WM_DESTROY()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CServerDlg message handlers
BOOL CServerDlg::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
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}
void CServerDlg::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 CServerDlg::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 CServerDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}
void CServerDlg::OnBtnOpen() 
{
	// TODO: Add your control notification handler code here
	OPENFILENAME  ofn ;
	TCHAR         achFileName[MAX_PATH] ;
	ZeroMemory(achFileName,MAX_PATH);
	// Init the filename buffer with either a filename or *.ifo
	ZeroMemory(&ofn, sizeof(OPENFILENAME)) ;
	ofn.lStructSize = sizeof(OPENFILENAME) ;
	ofn.hwndOwner = m_hWnd ;
	ofn.lpstrTitle = TEXT("Select Media File") ;
	ofn.lpstrFilter = TEXT("MPEG Files*.*;*.*") ;
	
	ofn.nFilterIndex = 1 ;
	ofn.lpstrFile = achFileName ;
	ofn.nMaxFile = sizeof(achFileName) ;
	ofn.lpstrFileTitle = NULL ;
	ofn.nMaxFileTitle = 0 ;
	ofn.lpstrInitialDir = NULL ;
	ofn.Flags = OFN_PATHMUSTEXIST | OFN_HIDEREADONLY ;
	
	if (!GetOpenFileName(&ofn)) // user specified a file
	{
		return ;
	}
	SetDlgItemText(IDC_CURPLAYING,achFileName);
	if(m_hMediaFile!=INVALID_HANDLE_VALUE)
		CloseHandle(m_hMediaFile);
	m_hMediaFile = CreateFile(achFileName,
		GENERIC_READ,
		FILE_SHARE_READ,
		NULL,OPEN_EXISTING,0,NULL);
	CURRENCY len;
	len.Lo = GetFileSize(m_hMediaFile,(LPDWORD)&len.Hi);
	m_llMediaLen = len.int64;
}
void CServerDlg::OnBtnStart() 
{
	// TODO: Add your control notification handler code here
	m_DPServer->StartSession();
}
HRESULT CServerDlg::OnNeedData(LONGLONG llDataPos,DWORD dwSize,DWORD * pdwGotSize,LPBYTE lpBuffer)
{
	CURRENCY llThePos;
	llThePos.int64= llDataPos;
	SetFilePointer(m_hMediaFile,llThePos.Lo,&llThePos.Hi,FILE_BEGIN);
	ReadFile(m_hMediaFile,lpBuffer,dwSize,pdwGotSize,NULL);
	return S_OK;
}
HRESULT CServerDlg::OnNeedLength(LONGLONG * llMediaLenght)
{
	* llMediaLenght =m_llMediaLen ;
	return S_OK;
}
void CServerDlg::OnDestroy() 
{
	CDialog::OnDestroy();
	
	// TODO: Add your message handler code here
	delete m_DPServer;
}

						