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// WinSockUDPDlg.cpp : implementation file // #include "stdafx.h" #include "WinSockUDP.h" #include "WinSockUDPDlg.h" #include "Help.h" //#include "AboutDlg.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() ///////////////////////////////////////////////////////////////////////////// // CWinSockUDPDlg dialog CWinSockUDPDlg::CWinSockUDPDlg(CWnd* pParent /*=NULL*/) : CDialog(CWinSockUDPDlg::IDD, pParent) { //{{AFX_DATA_INIT(CWinSockUDPDlg) m_strChat = _T(""); m_strData = _T(""); m_iLPort = 1001; m_strName = _T(""); m_iSPort = 1001; //}}AFX_DATA_INIT // Note that LoadIcon does not require a subsequent DestroyIcon in Win32 m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); } void CWinSockUDPDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CWinSockUDPDlg) DDX_Control(pDX, IDC_Exit, m_btnExit); DDX_Control(pDX, IDC_ServPort, m_ctlSPort); DDX_Control(pDX, IDC_ServName, m_ctlName); DDX_Control(pDX, IDC_Send, m_btnSend); DDX_Control(pDX, IDC_Open, m_btnOpen); DDX_Control(pDX, IDC_LocalPort, m_ctlLPort); DDX_Control(pDX, IDC_DisConn, m_btnDisConn); DDX_Control(pDX, IDC_Data, m_ctlData); DDX_Control(pDX, IDC_Clear, m_btnClear); DDX_Control(pDX, IDC_Chat, m_lstChat); DDX_LBString(pDX, IDC_Chat, m_strChat); DDX_Text(pDX, IDC_Data, m_strData); DDX_Text(pDX, IDC_LocalPort, m_iLPort); DDX_Text(pDX, IDC_ServName, m_strName); DDX_Text(pDX, IDC_ServPort, m_iSPort); //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CWinSockUDPDlg, CDialog) //{{AFX_MSG_MAP(CWinSockUDPDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_WM_CLOSE() ON_BN_CLICKED(IDC_Clear, OnClear) ON_BN_CLICKED(IDC_Open, OnOpenPort) ON_BN_CLICKED(IDC_DisConn, OnDisConn) ON_BN_CLICKED(IDC_Send, OnMsgSend) ON_BN_CLICKED(IDC_Exit, OnExit) ON_BN_CLICKED(IDC_HELP_INFORMATION, OnHelpInformation) ON_BN_CLICKED(IDC_SOFT_INFORMATION, OnSoftInformation) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CWinSockUDPDlg message handlers BOOL CWinSockUDPDlg::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 //设置自己派生的Socket类与对话框相关联 m_uSocket.SetParent(this); //刚启动的时候，设置发送信息的按钮不可用 m_btnSend.EnableWindow(false); return TRUE; // return TRUE unless you set the focus to a control } void CWinSockUDPDlg::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 CWinSockUDPDlg::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 CWinSockUDPDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } void CWinSockUDPDlg::OnOK() { // TODO: Add extra validation here //CDialog::OnOK(); } void CWinSockUDPDlg::OnCancel() { // TODO: Add extra cleanup here //CDialog::OnCancel(); } void CWinSockUDPDlg::OnClose() { // TODO: Add your message handler code here and/or call default CDialog::OnCancel(); } void CWinSockUDPDlg::OnReceive() { char *pBuf = new char[1025]; int iBufSize = 1024; int iRecvd; CString strRecvd;//接收的数据信息字符串 int iLen; // 接收信息，并返回接收到的字节数 iRecvd = m_uSocket.Receive(pBuf, iBufSize); // 判断是否有错误发生 if (iRecvd == SOCKET_ERROR) { } else { // 利用NULL来截去接收缓存区中多余的字符 pBuf[iRecvd] = NULL; // 将接收到的有用的信息赋值给CString变量 strRecvd = pBuf; iLen = strRecvd.GetLength(); // 将接收到的信息加入到列表框中去,SendMessage将字符串添加到末尾 m_lstChat.SendMessage(LB_INSERTSTRING, -1, (LPARAM)(LPCTSTR(strRecvd))); //将对应的变量的变化显示在控件上 UpdateData(FALSE); delete pBuf; } } void CWinSockUDPDlg::OnSocketClose() { m_uSocket.Close(); } void CWinSockUDPDlg::OnClear() { // TODO: Add your control notification handler code here //清空列表框内容 m_lstChat.SendMessage(LB_RESETCONTENT,0,0); } void CWinSockUDPDlg::OnOpenPort() { // TODO: Add your control notification handler code here UpdateData(true); if (m_iLPort<=0) { MessageBox("请输入大于0的本地端口号!"); m_ctlLPort.SetFocus(); return; } m_uSocket.Create(m_iLPort, SOCK_DGRAM); m_uSocket.Bind(m_iLPort); //启动发送信息的按钮 m_btnSend.EnableWindow(true); } void CWinSockUDPDlg::OnDisConn() { // TODO: Add your control notification handler code here m_uSocket.Close(); m_btnSend.EnableWindow(false); } void CWinSockUDPDlg::OnMsgSend() { // TODO: Add your control notification handler code here int iLen; //发送字符串的长度 int iSend; //发送函数返回的结果 CString strIp; //IP地址 CString strName; //主机名 CString strRemoteName; char *pName = new char[256]; struct hostent FAR *pHost, *pRhost; char *addrIp ; UpdateData(true); //检查远程计算机名称和端口是否正确 if(m_iSPort<=0 || m_strName=="") { MessageBox("请输入正确的服务器名称和端口号！"); m_ctlName.SetFocus(); return; } //验证要发送的信息是否合法 if(""==m_strData) { MessageBox("不能发送空字符串!"); m_ctlData.SetFocus(); return; } //用来获取当前连接的Socket的本地主机名 gethostname(pName, 256); strName = pName; //下面三条语句用来获取当前连接的Socket的本地IP地址 pHost = gethostbyname(strName); addrIp = inet_ntoa(*((in_addr *)pHost->h_addr));