www.gusucode.com > 20个VC++网络相关的源代码实例源码程序 > 20个VC++网络相关的源代码实例源码程序\code\如何实现套接字的连接\服务器端\Demo\DemoDlg.cpp
//Download by http://www.NewXing.com // DemoDlg.cpp : implementation file // #include "stdafx.h" #include "Demo.h" #include "DemoDlg.h" #define WM_SOCKET WM_USER+1 #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() ///////////////////////////////////////////////////////////////////////////// // CDemoDlg dialog CDemoDlg::CDemoDlg(CWnd* pParent /*=NULL*/) : CDialog(CDemoDlg::IDD, pParent) { //{{AFX_DATA_INIT(CDemoDlg) // 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 CDemoDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CDemoDlg) // NOTE: the ClassWizard will add DDX and DDV calls here //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CDemoDlg, CDialog) //{{AFX_MSG_MAP(CDemoDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_BN_CLICKED(IDC_LISTEN, OnListen) ON_MESSAGE(WM_SOCKET, OnSocket) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CDemoDlg message handlers BOOL CDemoDlg::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 return TRUE; } void CDemoDlg::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 CDemoDlg::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 CDemoDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } void CDemoDlg::OnListen() { CString strPort = _T(""); GetDlgItemText(IDC_PORT, strPort); if (strPort.IsEmpty()) { AfxMessageBox("请设置服务器端口号。"); return; } //关闭套接字 closesocket(m_Listen); //创建套接字 m_Listen = socket(AF_INET, SOCK_STREAM, 0); if (INVALID_SOCKET == m_Listen) { AfxMessageBox("套接字创建失败。"); return; } WSAAsyncSelect(m_Listen, m_hWnd, WM_SOCKET, FD_ACCEPT); //获得本地计算机IP地址 CString strAddr = _T(""); CString strHostName = _T(""); gethostname(strHostName.GetBuffer(MAX_PATH), MAX_PATH); strHostName.ReleaseBuffer(); struct hostent* pHostInfo = gethostbyname(strHostName); strAddr = inet_ntoa(*(in_addr*)pHostInfo->h_addr_list[0]); //套接字地址 sockaddr_in addr; addr.sin_family = AF_INET; addr.sin_addr.S_un.S_addr = inet_addr(strAddr); addr.sin_port = htons(atoi(strPort)); //绑定套接字 if (0 != bind(m_Listen, (sockaddr*)&addr,sizeof(addr))) { AfxMessageBox("套接字绑定错误失败。"); return; } //监听连接 if (0 == listen(m_Listen, 5)) { AfxMessageBox(_T("监听连接成功。")); } else { AfxMessageBox(_T("监听连接失败。")); } } LRESULT CDemoDlg::OnSocket(WPARAM wParam, LPARAM lParam) { if (lParam == FD_ACCEPT) { closesocket(m_Accept); //接受连接 m_Accept = accept(m_Listen, NULL, NULL); if (INVALID_SOCKET != m_Accept) { AfxMessageBox(_T("接受连接成功。")); } else { AfxMessageBox(_T("接受连接失败。")); } } return 0; }