网络程序设计报告-屏幕监控软件

1、局域网屏幕监控 下面是程序执行结果： 程序中使用从 CSocket 继承来的 CTCPClientSocket 和 CTCPServerSocket 来相互通信。并由客户端使用 OnStart( ) 建立连接，通信地址选用回环地址 127.0.0.1 来进行测试，如果要监控特定主机，须输入该机 ip 地址： void CScreenDlg:OnStart() clientsocket.Create(); run = false; bool ret = clientsocket.Connect(127.0.0.1,1033); /连接到1033端口 if (!ret) return; this-

2、SetTimer(0,1000,NULL); /设置时间间隔是1秒 服务器端进行监听： BOOL CServerDlg:OnInitDialog() CDialog:OnInitDialog(); / Add About. menu item to system menu. / IDM_ABOUTBOX must be in the system command range. ASSERT(IDM_ABOUTBOX ASSERT(IDM_ABOUTBOX AppendMenu(MF_SEPARATOR); pSysMenu-AppendMenu(MF_STRING, IDM_ABOUTBOX,

3、 strAboutMenu); / Set the icon for this dialog. The framework does this automatically / when the applications 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 bool ret = false; serversocket.SetServerEvent

4、(this); ret = serversocket.Create(1033); /打开1033端口 ret = serversocket.Listen(); / 进行监听 return TRUE; / return TRUE unless you set the focus to a control 建立连接后，服务器端使用GetScreen获取数据： 并转换成 2 进制信息： void CServerDlg:GetScreen() CDC dc,bmpdc; int width,height; dc.CreateDC(DISPLAY,NULL,NULL,NULL); CBitmap bm;

5、 width = GetSystemMetrics(SM_CXSCREEN); height = GetSystemMetrics(SM_CYSCREEN); bm.CreateCompatibleBitmap( bmpdc.CreateCompatibleDC( bmpdc.SelectObject( bmpdc.BitBlt(0,0,width,height, bm.GetBitmap( size = bitmap.bmWidthBytes * bitmap.bmHeight; bmpdata = new charsize; BITMAPINFOHEADER bih; bih.biBitC

6、ount=bitmap.bmBitsPixel; bih.biClrImportant=0; bih.biClrUsed=0; bih.biCompression=0; bih.biHeight=bitmap.bmHeight; bih.biPlanes=1; bih.biSize=sizeof(BITMAPINFOHEADER); bih.biSizeImage=size; bih.biWidth=bitmap.bmWidth; bih.biXPelsPerMeter=0; bih.biYPelsPerMeter=0; GetDIBits(dc,bm,0,bih.biHeight,bmpda

7、ta,(BITMAPINFO*) 发送图片数据: void CServerDlg:SendBitData(CSocket *socket) char *data = bmpdata; int sendlen=0; int len = 0; do /发送图像数据 sendlen = socket-Send(data,size); len += sendlen; data += sendlen; while(lenSend( 客户端使用 GetScreen( ) 来接送二进制数据： void CScreenDlg:GetScreen() char *buffer = M; / 获取图像结构信息 c

8、lientsocket.Send(buffer,strlen(buffer); clientsocket.Receive( size = bitmap.bmWidthBytes * bitmap.bmHeight; bmpdata = new charsize; /处理图像的动态数组 char * data = bmpdata; int len,receivelen; len = receivelen = 0; buffer = D; /获取图像数据 clientsocket.Send(buffer,strlen(buffer); do receivelen = clientsocket.Re

9、ceive(data,size); len += receivelen; data += receivelen; while(lenStretchBlt(0,0,rect.Width(),rect.Height(), 当关闭窗口时会调用 OnStopf 来做处理： void CScreenDlg:OnStop() this-KillTimer(0); /结束计时 clientsocket.ShutDown(2); clientsocket.Close(); / 关闭套接字 另外，继承自 CSocket 的 CTCPClentSocket 和 CTCPServerSocket 分别定义了 用于接

10、收的 OnAccept( ) 用于发送的 OnRecieve( )用于关闭套接字的 OnClose( )； OnAccept: void CTCPServerSocket:OnAccept(int nErrorCode ) CSocket:OnAccept(nErrorCode); clientsocket = new CTCPClientSocket(this); this-Accept(*clientsocket); POSITION pos = ClientList.GetHeadPosition(); ClientList.InsertBefore(pos,clientsocket);

11、 if (serverevent != NULL) clientsocket-SetClientEvent(serverevent); if (serverevent != NULL) serverevent-OnAccept(this,nErrorCode); OnRecieve: void CTCPClientSocket:OnReceive(int nErrorCode ) CSocket:OnReceive(nErrorCode); if (clientevent != NULL) clientevent-OnReceive(this,nErrorCode); OnClose: voi

12、d CTCPClientSocket:OnClose(int nErrorCode ) CSocket:OnClose(nErrorCode); if (clientevent != NULL) clientevent-OnClose(this,nErrorCode); POSITION pos = serversocket-ClientList.GetHeadPosition(); POSITION oldpos; while (pos != NULL) oldpos = pos; CTCPClientSocket *socket = (CTCPClientSocket*)serversoc

13、ket-ClientList.GetNext(pos); if (socket != NULL) serversocket-ClientList.RemoveAt(oldpos); 课程设计总结： 经过的了一周的学习和实践，加深了对网络程序设计的理解和应用。理解和 掌握了网络套接字的用法，使用规则。在编程上拓宽了自己的思路，学会了一 些灵活的方法，熟练了编程技巧。这次的课程设计中不仅检验了我所学习的知 识，也培养了我如何去把握一件事情，如何去做一件事情，又如何完成一件事 情。在设计过程中，与同学分工设计，和同学们相互探讨，相互学习，相互监 督。对于如何参考文献有了更深的理解。 参考资料： WI

14、NDOWS 网络与通信设计 王艳平 VISUAL C+ 范例完全自学手册 附源代码： Screen 工程中：Resourse.h /NO_DEPENDENCIES / Microsoft Developer Studio generated include file. / Used by Screen.rc / #define IDM_ABOUTBOX creen 0 x0010 #define IDD_ABOUTBOX 100 #define IDS_ABOUTBOX 101 #define IDD_SCREEN_DIALOG 102 #define IDR_MAINFRAME 128 #d

15、efine IDC_BUTTON1 1000 #define IDC_BUTTON2 1001 #define IDC_DRAWSCREEN 1002 / Next default values for new objects / #ifdef APSTUDIO_INVOKED #ifndef APSTUDIO_READONLY_SYMBOLS #define _APS_NEXT_RESOURCE_VALUE 131 #define _APS_NEXT_COMMAND_VALUE 32771 #define _APS_NEXT_CONTROL_VALUE 1003 #define _APS_N

16、EXT_SYMED_VALUE 101 #endif #endif Screen.h: / Screen.h : main header file for the SCREEN application / #if !defined(AFX_SCREEN_H_1141ED47_1E96_4C04_B767_6555BE0E67B4_INCLUDED_) #define AFX_SCREEN_H_1141ED47_1E96_4C04_B767_6555BE0E67B4_INCLUDED_ #if _MSC_VER 1000 #pragma once #endif / _MSC_VER 1000 #

17、ifndef _AFXWIN_H_ #error include stdafx.h before including this file for PCH #endif #include resource.h/ main symbols / / CScreenApp: / See Screen.cpp for the implementation of this class / class CScreenApp : public CWinApp public: CScreenApp(); / Overrides / ClassWizard generated virtual function o

18、verrides /AFX_VIRTUAL(CScreenApp) public: virtual BOOL InitInstance(); /AFX_VIRTUAL / Implementation /AFX_MSG(CScreenApp) / NOTE - the ClassWizard will add and remove member functions here. / DO NOT EDIT what you see in these blocks of generated code ! /AFX_MSG DECLARE_MESSAGE_MAP() ; / /AFX_INSERT_

19、LOCATION / Microsoft Visual C+ will insert additional declarations immediately before the previous line. #endif / !defined(AFX_SCREEN_H_1141ED47_1E96_4C04_B767_6555BE0E67B4_INCLUDED_) ScreenDlg.h: / ScreenDlg.h : header file / #include TCPServer.h #if !defined(AFX_SCREENDLG_H_9DB60DB4_6CA7_45EC_997B

20、_1FC964D08D10_INCLUDED_) #define AFX_SCREENDLG_H_9DB60DB4_6CA7_45EC_997B_1FC964D08D10_INCLUDED_ #if _MSC_VER 1000 #pragma once #endif / _MSC_VER 1000 / / CScreenDlg dialog class CScreenDlg : public CDialog / Construction protected: bool run; BITMAP bitmap; int size; char * bmpdata; void GetScreen();

21、 void DrawScreen(); public: CTCPClientSocket clientsocket; CScreenDlg(CWnd* pParent = NULL);/ standard constructor / Dialog Data /AFX_DATA(CScreenDlg) enum IDD = IDD_SCREEN_DIALOG ; CStaticm_drawscreen; /AFX_DATA / ClassWizard generated virtual function overrides /AFX_VIRTUAL(CScreenDlg) protected:

22、virtual void DoDataExchange(CDataExchange* pDX); / DDX/DDV support /AFX_VIRTUAL / Implementation protected: HICON m_hIcon; / Generated message map functions /AFX_MSG(CScreenDlg) virtual BOOL OnInitDialog(); afx_msg void OnSysCommand(UINT nID, LPARAM lParam); afx_msg void OnPaint(); afx_msg HCURSOR O

23、nQueryDragIcon(); afx_msg void OnStart(); afx_msg void OnSize(UINT nType, int cx, int cy); afx_msg void OnTimer(UINT nIDEvent); afx_msg void OnStop(); /AFX_MSG DECLARE_MESSAGE_MAP() ; /AFX_INSERT_LOCATION / Microsoft Visual C+ will insert additional declarations immediately before the previous line.

24、 #endif / !defined(AFX_SCREENDLG_H_9DB60DB4_6CA7_45EC_997B_1FC964D08D10_INCLUDED_) StdAfx.h: / stdafx.h : include file for standard system include files, / or project specific include files that are used frequently, but / are changed infrequently / #define _WIN32_WINNT 0 x0500 #if !defined(AFX_STDAF

25、X_H_19AD48ED_1769_499E_925D_EC594502C8AD_INCLUDED_) #define AFX_STDAFX_H_19AD48ED_1769_499E_925D_EC594502C8AD_INCLUDED_ #if _MSC_VER 1000 #pragma once #endif / _MSC_VER 1000 #define VC_EXTRALEAN/ Exclude rarely-used stuff from Windows headers #include / MFC core and standard components #include / MF

26、C extensions #include / MFC Automation classes #include / MFC support for Internet Explorer 4 Common Controls #ifndef _AFX_NO_AFXCMN_SUPPORT #include / MFC support for Windows Common Controls #endif / _AFX_NO_AFXCMN_SUPPORT /AFX_INSERT_LOCATION / Microsoft Visual C+ will insert additional declaratio

27、ns immediately before the previous line. #endif / !defined(AFX_STDAFX_H_19AD48ED_1769_499E_925D_EC594502C8AD_INCLUDED_) TCPServer.h: / TCPServer.h: interface for the CTCPServer class. / / #include #include #if !defined(AFX_TCPSERVER_H_4EBA8D8C_CC6E_4C73_808F_3FA7AE7F983D_INCLUDED_) #define AFX_TCPSE

28、RVER_H_4EBA8D8C_CC6E_4C73_808F_3FA7AE7F983D_INCLUDED_ #if _MSC_VER 1000 #pragma once #endif / _MSC_VER 1000 class CTCPClientEvent public: virtual void OnClose(CSocket * socket, int nErrorCode ); virtual void OnReceive(CSocket * socket, int nErrorCode ); ; class CTCPServerEvent:public CTCPClientEvent

29、 public: virtual void OnAccept(CSocket * socket, int nErrorCode ); ; class CTCPServerSocket; class CTCPClientSocket:public CSocket private: CTCPClientEvent * clientevent; CTCPServerSocket *serversocket; public: CTCPClientSocket(CTCPServerSocket *ServerSocket = NULL); void SetClientEvent(CTCPClientEv

30、ent * ClientEvent); virtual void OnClose(int nErrorCode ); virtual void OnReceive(int nErrorCode ); ; class CTCPServerSocket:public CSocket private: CTCPClientSocket *clientsocket; CTCPServerEvent *serverevent; public: CPtrList ClientList; public: CTCPServerSocket(); void SetServerEvent(CTCPServerEv

31、ent *ServerEvent); virtual void OnAccept(int nErrorCode ); ; #endif / !defined(AFX_TCPSERVER_H_4EBA8D8C_CC6E_4C73_808F_3FA7AE7F983D_INCLUDED_) Screen.cpp: / Screen.cpp : Defines the class behaviors for the application. / #include stdafx.h #include Screen.h #include ScreenDlg.h #ifdef _DEBUG #define

32、new DEBUG_NEW #undef THIS_FILE static char THIS_FILE = _FILE_; #endif / / CScreenApp BEGIN_MESSAGE_MAP(CScreenApp, CWinApp) /AFX_MSG_MAP(CScreenApp) / NOTE - the ClassWizard will add and remove mapping macros here. / DO NOT EDIT what you see in these blocks of generated code! /AFX_MSG ON_COMMAND(ID_

33、HELP, CWinApp:OnHelp) END_MESSAGE_MAP() / / CScreenApp construction CScreenApp:CScreenApp() / TODO: add construction code here, / Place all significant initialization in InitInstance / / The one and only CScreenApp object CScreenApp theApp; / / CScreenApp initialization BOOL CScreenApp:InitInstance(

34、) :AfxSocketInit(); AfxEnableControlContainer(); / Standard initialization / If you are not using these features and wish to reduce the size / of your final executable, you should remove from the following / the specific initialization routines you do not need. #ifdef _AFXDLL Enable3dControls();/ Ca

35、ll this when using MFC in a shared DLL #else Enable3dControlsStatic(); / Call this when linking to MFC statically #endif CScreenDlg dlg; m_pMainWnd = int nResponse = dlg.DoModal(); if (nResponse = IDOK) / TODO: Place code here to handle when the dialog is / dismissed with OK else if (nResponse = IDC

36、ANCEL) / TODO: Place code here to handle when the dialog is / dismissed with Cancel / Since the dialog has been closed, return FALSE so that we exit the / application, rather than start the applications message pump. return FALSE; ScreenDlg.cpp: / ScreenDlg.cpp : implementation file / #include stdaf

37、x.h #include Screen.h #include ScreenDlg.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

38、/ 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_D

39、ATA_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() / / CScreenDlg dialog CScreenDlg

40、:CScreenDlg(CWnd* pParent /*=NULL*/) : CDialog(CScreenDlg:IDD, pParent) /AFX_DATA_INIT(CScreenDlg) / 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); void CS

41、creenDlg:DoDataExchange(CDataExchange* pDX) CDialog:DoDataExchange(pDX); /AFX_DATA_MAP(CScreenDlg) DDX_Control(pDX, IDC_DRAWSCREEN, m_drawscreen); /AFX_DATA_MAP BEGIN_MESSAGE_MAP(CScreenDlg, CDialog) /AFX_MSG_MAP(CScreenDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_BN_CLICKED(IDC_BU

42、TTON1, OnStart) ON_WM_SIZE() ON_WM_TIMER() ON_BN_CLICKED(IDC_BUTTON2, OnStop) /AFX_MSG_MAP END_MESSAGE_MAP() / / CScreenDlg message handlers BOOL CScreenDlg:OnInitDialog() CDialog:OnInitDialog(); / Add About. menu item to system menu. / IDM_ABOUTBOX must be in the system command range. ASSERT(IDM_AB

43、OUTBOX ASSERT(IDM_ABOUTBOX AppendMenu(MF_SEPARATOR); pSysMenu-AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); / Set the icon for this dialog. The framework does this automatically / when the applications main window is not a dialog SetIcon(m_hIcon, TRUE);/ Set big icon SetIcon(m_hIcon, FALSE);/ S

44、et small icon / TODO: Add extra initialization here return TRUE; / return TRUE unless you set the focus to a control void CScreenDlg:OnSysCommand(UINT nID, LPARAM lParam) if (nID dlgAbout.DoModal(); else CDialog:OnSysCommand(nID, lParam); / If you add a minimize button to your dialog, you will need

45、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 CScreenDlg:OnPaint() if (IsIconic() CPaintDC dc(this); / device context for painting SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); / Cente

46、r icon in client rectangle int cxIcon = GetSystemMetrics(SM_CXICON); int cyIcon = GetSystemMetrics(SM_CYICON); CRect rect; GetClientRect( 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 syste

47、m calls this to obtain the cursor to display while the user drags / the minimized window. HCURSOR CScreenDlg:OnQueryDragIcon() return (HCURSOR) m_hIcon; void CScreenDlg:OnStart() clientsocket.Create(); run = false; bool ret = clientsocket.Connect(127.0.0.1,1033); if (!ret) return; this-SetTimer(0,10

48、00,NULL); void CScreenDlg:OnSize(UINT nType, int cx, int cy) CDialog:OnSize(nType, cx, cy); if (!IsWindow(m_drawscreen.GetSafeHwnd() return; CRect rect; m_drawscreen.GetClientRect( rect.top = 50; rect.left = 10; rect.right = cx -10; rect.bottom = cy - 10; m_drawscreen.MoveWindow( void CScreenDlg:OnT

49、imer(UINT nIDEvent) if (nIDEvent != 0) return; if (run) return; run = true; GetScreen(); run = false; CDialog:OnTimer(nIDEvent); void CScreenDlg:GetScreen() char *buffer = M; clientsocket.Send(buffer,strlen(buffer); clientsocket.Receive( size = bitmap.bmWidthBytes * bitmap.bmHeight; bmpdata = new ch

50、arsize; char * data = bmpdata; int len,receivelen; len = receivelen = 0; buffer = D; clientsocket.Send(buffer,strlen(buffer); do receivelen = clientsocket.Receive(data,size); len += receivelen; data += receivelen; while(lenStretchBlt(0,0,rect.Width(),rect.Height(), void CScreenDlg:OnStop() this-Kill

51、Timer(0); clientsocket.ShutDown(2); clientsocket.Close(); TCPServer.cpp: / TCPServer.cpp: implementation of the CTCPServer class. / / #include stdafx.h #include Server.h #include TCPServer.h #ifdef _DEBUG #undef THIS_FILE static char THIS_FILE=_FILE_; #define new DEBUG_NEW #endif / / Construction/De

52、struction / /CTCPServerEvent/ void CTCPServerEvent:OnAccept(CSocket * socket, int nErrorCode ) void CTCPClientEvent:OnClose(CSocket * socket, int nErrorCode ) void CTCPClientEvent:OnReceive(CSocket * socket, int nErrorCode ) /CTCPClientSocket/ CTCPClientSocket:CTCPClientSocket(CTCPServerSocket *Serv

53、erSocket) :CSocket() serversocket = ServerSocket; void CTCPClientSocket:SetClientEvent(CTCPClientEvent * ClientEvent) this-clientevent = ClientEvent; void CTCPClientSocket:OnClose(int nErrorCode ) CSocket:OnClose(nErrorCode); if (clientevent != NULL) clientevent-OnClose(this,nErrorCode); POSITION po

54、s = serversocket-ClientList.GetHeadPosition(); POSITION oldpos; while (pos != NULL) oldpos = pos; CTCPClientSocket *socket = (CTCPClientSocket*)serversocket-ClientList.GetNext(pos); if (socket != NULL) serversocket-ClientList.RemoveAt(oldpos); void CTCPClientSocket:OnReceive(int nErrorCode ) CSocket:OnReceive(nErrorCode); if (clientevent != NULL) clientevent-OnReceive(this,nErrorC