www.gusucode.com > VC++ 线程同步与异步套接字编程实例-源码程序 > VC++ 线程同步与异步套接字编程实例-源码程序\code\Chat\ChatDlg.cpp
//Download by http://www.NewXing.com // ChatDlg.cpp : implementation file // #include "stdafx.h" #include "Chat.h" #include "ChatDlg.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() ///////////////////////////////////////////////////////////////////////////// // CChatDlg dialog CChatDlg::CChatDlg(CWnd* pParent /*=NULL*/) : CDialog(CChatDlg::IDD, pParent) { //{{AFX_DATA_INIT(CChatDlg) // 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_socket=0; } CChatDlg::~CChatDlg() { if(m_socket) closesocket(m_socket); } void CChatDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CChatDlg) // NOTE: the ClassWizard will add DDX and DDV calls here //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CChatDlg, CDialog) //{{AFX_MSG_MAP(CChatDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_BN_CLICKED(IDC_BTN_SEND, OnBtnSend) //}}AFX_MSG_MAP ON_MESSAGE(UM_SOCK,OnSock) END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CChatDlg message handlers BOOL CChatDlg::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 InitSocket(); return TRUE; // return TRUE unless you set the focus to a control } void CChatDlg::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 CChatDlg::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 CChatDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } BOOL CChatDlg::InitSocket() { m_socket=WSASocket(AF_INET,SOCK_DGRAM,0,NULL,0,0); if(INVALID_SOCKET==m_socket) { MessageBox("创建套接字失败!"); return FALSE; } SOCKADDR_IN addrSock; addrSock.sin_addr.S_un.S_addr=htonl(INADDR_ANY); addrSock.sin_family=AF_INET; addrSock.sin_port=htons(6000); if(SOCKET_ERROR==bind(m_socket,(SOCKADDR*)&addrSock,sizeof(SOCKADDR))) { MessageBox("绑定失败!"); return FALSE; } if(SOCKET_ERROR==WSAAsyncSelect(m_socket,m_hWnd,UM_SOCK,FD_READ)) { MessageBox("注册网络读取事件失败!"); return FALSE; } return TRUE; } void CChatDlg::OnSock(WPARAM wParam,LPARAM lParam) { switch(LOWORD(lParam)) { case FD_READ: WSABUF wsabuf; wsabuf.buf=new char[200]; wsabuf.len=200; DWORD dwRead; DWORD dwFlag=0; SOCKADDR_IN addrFrom; int len=sizeof(SOCKADDR); CString str; CString strTemp; HOSTENT *pHost; if(SOCKET_ERROR==WSARecvFrom(m_socket,&wsabuf,1,&dwRead,&dwFlag, (SOCKADDR*)&addrFrom,&len,NULL,NULL)) { MessageBox("接收数据失败!"); return; } pHost=gethostbyaddr((char*)&addrFrom.sin_addr.S_un.S_addr,4,AF_INET); //str.Format("%s说 :%s",inet_ntoa(addrFrom.sin_addr),wsabuf.buf); str.Format("%s说 :%s",pHost->h_name,wsabuf.buf); str+="\r\n"; GetDlgItemText(IDC_EDIT_RECV,strTemp); str+=strTemp; SetDlgItemText(IDC_EDIT_RECV,str); break; } } void CChatDlg::OnBtnSend() { // TODO: Add your control notification handler code here DWORD dwIP; CString strSend; WSABUF wsabuf; DWORD dwSend; int len; CString strHostName; SOCKADDR_IN addrTo; HOSTENT* pHost; if(GetDlgItemText(IDC_EDIT_HOSTNAME,strHostName),strHostName=="") { ((CIPAddressCtrl*)GetDlgItem(IDC_IPADDRESS1))->GetAddress(dwIP); addrTo.sin_addr.S_un.S_addr=htonl(dwIP); } else { pHost=gethostbyname(strHostName); addrTo.sin_addr.S_un.S_addr=*((DWORD*)pHost->h_addr_list[0]); } addrTo.sin_family=AF_INET; addrTo.sin_port=htons(6000); GetDlgItemText(IDC_EDIT_SEND,strSend); len=strSend.GetLength(); wsabuf.buf=strSend.GetBuffer(len); wsabuf.len=len+1; SetDlgItemText(IDC_EDIT_SEND,""); if(SOCKET_ERROR==WSASendTo(m_socket,&wsabuf,1,&dwSend,0, (SOCKADDR*)&addrTo,sizeof(SOCKADDR),NULL,NULL)) { MessageBox("发送数据失败!"); return; } }