图像网络程序设计报告屏幕监控软件

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 CTCPCl ientSocket 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()

{cl ientsocket.Create();run =false;bool ret=clientsocket.Connect("127.0.0.1",1033); //连接到1033端口if (!ret)return;this->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 thesystemcommand 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);}

}

//Setthe iconforthis dialog. Theframework doesthis automatical ly

SetIcon(m_hIcon,TRUE); //Set big icon

SetIcon(m_hIcon,FALSE); //Set smal l icon

//TODO:Add extra initialization herebool ret=false;serversoc ket.SetServerEvent(this);ret= serversocket.Create(1033); //打开1033端口ret= serversocket.Listen(); //进行监听return TRUE; //return TRUE unless you setthefocus 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;width =GetSystemMetrics(SM_CXSCREEN);height=GetSystemMetrics(SM_CYSCREEN);

bm.CreateCompatibleBitmap(&dc,width,height);bmpdc.CreateCompatibleDC(&dc);bmpdc.SelectObject(&bm);bmpdc.BitBlt(0,0,width,height,&dc,0,0,SRCCOPY);bm.GetBitmap(&bitmap);size= bitmap.bmWidthBytes *bitmap.bmHeight;bmpdata= new char[size];

BITMAPIN FOHEADER bih;bih.biBitCount=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,bmpdata,(BITMAPINFO*)&bih,DIB_RGB_COLORS);}

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(len<size);delete bmpdata;bmpdata=NULL;size= 0;

}

发送图片结构void CServerDlg::SendBitmap(CSocket *socket)

{

GetScreen();socket->Send(&bitmap,sizeof(BITMAP));

}

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cl ientsocket.Send(buffer,strlen(buffer));cl ientsocket.Receive(&bitmap,sizeof(BITMAP));size= bitmap.bmWidthBytes *bitmap.bmHeight;bmpdata= new char[size]; //处理图像的劢态数组char*data= bmpdata;int len,receivelen;len = receivelen =0;buffer="D"; //获取图像数据cl ientsocket.Send(buffer,strlen(buffer));do

{receivelen =clientsocket.Receive(data,size);len += receivelen;data+= receivelen;

}while(len<size);

DrawScreen();delete bmpdata;bmpdata=NULL;size= 0;

}

使DrawScreen( )来在窗口中绘制接收到的图形void CScreenDlg::DrawScreen()

{

CDC*dc=m_drawscreen.GetDC();

BITMAPIN FOHEADER bih;bih.biBitCount=bitmap.bmBitsPixel;bih.biClrImportant=0; //绘制图片相应参数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;

CBitmap bm;bm.CreateBitmapIndirect(&bitmap);

CDC bmpdc;bmpdc.CreateCompatibleDC(dc);

SetDIBits(bmpdc.m_hDC,bm,0,bitmap.bmHeight,bmpdata,(BITMAPINFO*)&bih,DIB_RGB_CO LO RS);bmpdc.SelectObject(&bm);

CRect rect;m_drawscreen.GetClientRect(&rect);dc->StretchBlt(0,0,rect.Width(),rect.Height(),&bmpdc,0,0,bitmap.bmWidth,bitmap.bmHeight,SRCCOPY);

}

当关闭窗口时会调用OnStopf来做处理void CScreenDlg::OnStop()

{this->Kil lTimer(0); //结束计时cl ientsocket.ShutDown(2);cl ientsocket.Close(); //关闭套接字

}

另外继承自CSocket的CTCPClentSocket和CTCPServerSocket分别定义了用亍接收的OnAccept( )用亍发送的OnRecieve( )用亍关闭套接字的

OnClose( ) 

OnAccept:void CTCPServerSocket::OnAccept(int nErrorCode){

CSocket::OnAccept(nErrorCode);cl ientsocket= new CTCPClientSocket(this);this->Accept(*clientsocket);

POSITION pos=ClientList.GetHeadPosition();Cl ientList.InsertBefore(pos,cl ientsocket);if (serverevent !=N ULL)cl ientsocket->SetClientEvent(serverevent);if (serverevent !=N ULL)serverevent->OnAccept(this,nErrorCode);}

OnRecieve:void CTCPClientSocket::OnReceive(int nErrorCode){

CSocket::OnReceive(nErrorCode);if (clientevent !=NULL)cl ientevent->OnReceive(this,nErrorCode);}