基于套接字的网络聊天系统

VC++6.0制作一个MFC的对话框程序

一、制作客户端：命名为Client



1、Client.cpp：

// Client.cpp : Defines the class behaviors for the application.

//
#include "stdafx.h"

#include "Client.h"

#include "ClientDlg.h"

#ifdef _DEBUG

#define new DEBUG_NEW

#undef THIS_FILE

static char THIS_FILE[] = __FILE__;

#endif

/////////////////////////////////////////////////////////////////////////////

// CClientApp

BEGIN_MESSAGE_MAP(CClientApp, CWinApp)

//{{AFX_MSG_MAP(CClientApp)

// 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_HELP, CWinApp::OnHelp)

END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////

// CClientApp construction

CClientApp::CClientApp()

{

// TODO: add construction code here,

// Place all significant initialization in InitInstance

}

/////////////////////////////////////////////////////////////////////////////

// The one and only CClientApp object

CClientApp theApp;

/////////////////////////////////////////////////////////////////////////////

// CClientApp initialization

BOOL CClientApp::InitInstance()

{

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(); // Call this when using MFC in a shared DLL

#else

Enable3dControlsStatic(); // Call this when linking to MFC statically

#endif

WSADATA wsd;

WSAStartup(MAKEWORD(2,2),&wsd);

CClientDlg dlg;

m_pMainWnd = &dlg;

int nResponse = dlg.DoModal();

if (nResponse == IDOK)

{

// TODO: Place code here to handle when the dialog is

// dismissed with OK

}

else if (nResponse == IDCANCEL)

{

// 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 application's message pump.

return FALSE;

}

int CClientApp::ExitInstance()

{

// TODO: Add your specialized code here and/or call the base class

WSACleanup();

return CWinApp::ExitInstance();

}

2、Client.h:

// Client.h : main header file for the CLIENT application

//

#if !defined(AFX_CLIENT_H__E1A7E768_0B18_4D3B_8299_F51A19B0622F__INCLUDED_)

#define AFX_CLIENT_H__E1A7E768_0B18_4D3B_8299_F51A19B0622F__INCLUDED_

#if _MSC_VER > 1000

#pragma once

#endif // _MSC_VER > 1000

#ifndef __AFXWIN_H__

#error include 'stdafx.h' before including this file for PCH

#endif

#include "resource.h" // main symbols

/////////////////////////////////////////////////////////////////////////////

// CClientApp:

// See Client.cpp for the implementation of this class

//

class CClientApp : public CWinApp

{

public:

CClientApp();

// Overrides

// ClassWizard generated virtual function overrides

//{{AFX_VIRTUAL(CClientApp)

public:

virtual BOOL InitInstance();

virtual int ExitInstance();

//}}AFX_VIRTUAL

// Implementation

//{{AFX_MSG(CClientApp)

// 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_LOCATION}}

// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_CLIENT_H__E1A7E768_0B18_4D3B_8299_F51A19B0622F__INCLUDED_)

3、ClientDlg.cpp:

// ClientDlg.cpp : implementation file

//

#include "stdafx.h"

#include "Client.h"

#include "ClientDlg.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()

/////////////////////////////////////////////////////////////////////////////

// CClientDlg dialog

CClientDlg::CClientDlg(CWnd* pParent /*=NULL*/)

: CDialog(CClientDlg::IDD, pParent)

{

//{{AFX_DATA_INIT(CClientDlg)

//}}AFX_DATA_INIT

// Note that LoadIcon does not require a subsequent DestroyIcon in Win32

m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);

}

void CClientDlg::DoDataExchange(CDataExchange* pDX)

{

CDialog::DoDataExchange(pDX);

//{{AFX_DATA_MAP(CClientDlg)

DDX_Control(pDX, IDC_EDIT4, m_SendData);

DDX_Control(pDX, IDC_LIST2, m_MsgList);

DDX_Control(pDX, IDC_EDIT3, m_NickName);

DDX_Control(pDX, IDC_EDIT2, m_ServerPort);

DDX_Control(pDX, IDC_EDIT1, m_ServerIP);

//}}AFX_DATA_MAP

}

BEGIN_MESSAGE_MAP(CClientDlg, CDialog)

//{{AFX_MSG_MAP(CClientDlg)

ON_WM_SYSCOMMAND()

ON_WM_PAINT()

ON_WM_QUERYDRAGICON()

ON_BN_CLICKED(IDC_BUTTON1, OnLogin)

ON_MESSAGE(CM_RECEIVE,ReceiveInfo)

ON_BN_CLICKED(IDC_BUTTON2, OnSend)

//}}AFX_MSG_MAP

END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////

// CClientDlg message handlers

BOOL CClientDlg::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

m_SockClient = socket(AF_INET,SOCK_STREAM,0);

return TRUE; // return TRUE unless you set the focus to a control

}

void CClientDlg::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 CClientDlg::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 CClientDlg::OnQueryDragIcon()

{

return (HCURSOR) m_hIcon;

}

void CClientDlg::ReceiveInfo()

{

char buffer[1024];

int num=recv(m_SockClient,buffer,1024,0); //接收数据

buffer[num]=0; //定义结束标记

m_MsgList.AddString(buffer);

}

void CClientDlg::OnLogin()

{

// TODO: Add your control notification handler code here

// TODO: Add your control notification handler code here

sockaddr_in serveraddr;

CString strport;

m_ServerPort.GetWindowText(strport);

m_ServerIP.GetWindowText(m_IP);

if(strport.IsEmpty()||m_IP.IsEmpty())

{

MessageBox("请设置服务器IP和端口号");

return;

}

m_Port=atoi(strport);

serveraddr.sin_family=AF_INET;

serveraddr.sin_port=htons(m_Port);

serveraddr.sin_addr.S_un.S_addr=inet_addr(m_IP); //设置服务器IP

//开始连接服务器

if (connect(m_SockClient,(sockaddr*)&serveraddr,sizeof(serveraddr))!=0)

{

MessageBox("连接失败！");

return;

}

else

MessageBox("连接成功！");

WSAAsyncSelect(m_SockClient,m_hWnd,1000,FD_READ);

CString strname,info;

m_NickName.GetWindowText(strname);

info.Format("%s------>%s",strname,"进入聊天室");

send(m_SockClient,info.GetBuffer(0),info.GetLength(),0);

}

void CClientDlg::OnSend()

{

CString strData,name,info ;

m_NickName.GetWindowText(name);

m_SendData.GetWindowText(strData);

if (!name.IsEmpty() && !strData.IsEmpty())

{

info.Format("%s说: %s",name,strData);

//开始发送数据

send(m_SockClient,info.GetBuffer(0),info.GetLength(),0);

m_MsgList.AddString(info);

m_SendData.SetWindowText("");

}

}

4、ClientDlg.h:

#if !defined(AFX_CLIENTDLG_H__AB03175A_736A_4B39_875F_D389116DF842__INCLUDED_)

#define AFX_CLIENTDLG_H__AB03175A_736A_4B39_875F_D389116DF842__INCLUDED_

#if _MSC_VER > 1000

#pragma once

#endif // _MSC_VER > 1000

/////////////////////////////////////////////////////////////////////////////

// CClientDlg dialog

#include "winsock2.h"

#pragma comment (lib,"ws2_32.lib")

#define CM_RECEIVE 1000

class CClientDlg : public CDialog

{

// Construction

public:

void ReceiveInfo();

CClientDlg(CWnd* pParent = NULL); // standard constructor

SOCKET m_SockClient;

UINT m_Port;

CString m_IP;

// Dialog Data

//{{AFX_DATA(CClientDlg)

enum { IDD = IDD_CLIENT_DIALOG };

CListBox m_MsgList;

CEdit m_ServerPort;

CEdit m_ServerIP;

CEdit m_SendData;

CEdit m_NickName;

//}}AFX_DATA

// ClassWizard generated virtual function overrides

//{{AFX_VIRTUAL(CClientDlg)

protected:

virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support

//}}AFX_VIRTUAL

// Implementation

protected:

HICON m_hIcon;

// Generated message map functions

//{{AFX_MSG(CClientDlg)

virtual BOOL OnInitDialog();

afx_msg void OnSysCommand(UINT nID, LPARAM lParam);

afx_msg void OnPaint();

afx_msg HCURSOR OnQueryDragIcon();

afx_msg void OnLogin();

afx_msg void OnSend();

//}}AFX_MSG

DECLARE_MESSAGE_MAP()

};

//{{AFX_INSERT_LOCATION}}

// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_CLIENTDLG_H__AB03175A_736A_4B39_875F_D389116DF842__INCLUDED_)</span>

5、Resource.h:

//{{NO_DEPENDENCIES}}

// Microsoft Developer Studio generated include file.

// Used by Client.rc

//

#define IDM_ABOUTBOX 0x0010

#define IDD_ABOUTBOX 100

#define IDS_ABOUTBOX 101

#define IDD_CLIENT_DIALOG 102

#define IDR_MAINFRAME 128

#define IDC_EDIT1 1000

#define IDC_EDIT2 1001

#define IDC_EDIT3 1002

#define IDC_BUTTON1 1003

#define IDC_EDIT4 1005

#define IDC_BUTTON2 1006

#define IDC_LIST2 1007

// Next default values for new objects

//

#ifdef APSTUDIO_INVOKED

#ifndef APSTUDIO_READONLY_SYMBOLS

#define _APS_NEXT_RESOURCE_VALUE 129

#define _APS_NEXT_COMMAND_VALUE 32771

#define _APS_NEXT_CONTROL_VALUE 1008

#define _APS_NEXT_SYMED_VALUE 101

#endif

#endif

6、Stdafx.h:

// stdafx.h : include file for standard system include files,

// or project specific include files that are used frequently, but

// are changed infrequently

//

#if !defined(AFX_STDAFX_H__91CBAAA4_9EED_4573_8ACE_9439037A3130__INCLUDED_)

#define AFX_STDAFX_H__91CBAAA4_9EED_4573_8ACE_9439037A3130__INCLUDED_

#if _MSC_VER > 1000

#pragma once

#endif // _MSC_VER > 1000

#define VC_EXTRALEAN // Exclude rarely-used stuff from Windows headers

#include <afxwin.h> // MFC core and standard components

#include <afxext.h> // MFC extensions

#include <afxdisp.h> // MFC Automation classes

#include <afxdtctl.h> // MFC support for Internet Explorer 4 Common Controls

#ifndef _AFX_NO_AFXCMN_SUPPORT

#include <afxcmn.h> // MFC support for Windows Common Controls

#endif // _AFX_NO_AFXCMN_SUPPORT

//{{AFX_INSERT_LOCATION}}

// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_STDAFX_H__91CBAAA4_9EED_4573_8ACE_9439037A3130__INCLUDED_)

7、stdafx.cpp:

// stdafx.cpp : source file that includes just the standard includes

// Client.pch will be the pre-compiled header

// stdafx.obj will contain the pre-compiled type information

#include "stdafx.h"

二、制作服务器端：命名为Server



1、Server.cpp:

// Server.cpp : Defines the class behaviors for the application.

//

#include "stdafx.h"

#include "Server.h"

#include "ServerDlg.h"

#ifdef _DEBUG

#define new DEBUG_NEW

#undef THIS_FILE

static char THIS_FILE[] = __FILE__;

#endif

/////////////////////////////////////////////////////////////////////////////

// CServerApp

BEGIN_MESSAGE_MAP(CServerApp, CWinApp)

//{{AFX_MSG_MAP(CServerApp)

// 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_HELP, CWinApp::OnHelp)

END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////

// CServerApp construction

CServerApp::CServerApp()

{

// TODO: add construction code here,

// Place all significant initialization in InitInstance

}

/////////////////////////////////////////////////////////////////////////////

// The one and only CServerApp object

CServerApp theApp;

/////////////////////////////////////////////////////////////////////////////

// CServerApp initialization

BOOL CServerApp::InitInstance()

{

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(); // Call this when using MFC in a shared DLL

#else

Enable3dControlsStatic(); // Call this when linking to MFC statically

#endif

WSADATA wsd;

WSAStartup(MAKEWORD(2,2),&wsd);

CServerDlg dlg;

m_pMainWnd = &dlg;

int nResponse = dlg.DoModal();

if (nResponse == IDOK)

{

// TODO: Place code here to handle when the dialog is

// dismissed with OK

}

else if (nResponse == IDCANCEL)

{

// 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 application's message pump.

return FALSE;

}

int CServerApp::ExitInstance()

{

WSACleanup();

return CWinApp::ExitInstance();

}

2、Server.h:

// Server.h : main header file for the SERVER application

//

#if !defined(AFX_SERVER_H__5CADC2CA_28BB_45BC_A086_32387F3D87BC__INCLUDED_)

#define AFX_SERVER_H__5CADC2CA_28BB_45BC_A086_32387F3D87BC__INCLUDED_

#if _MSC_VER > 1000

#pragma once

#endif // _MSC_VER > 1000

#ifndef __AFXWIN_H__

#error include 'stdafx.h' before including this file for PCH

#endif

#include "resource.h" // main symbols

/////////////////////////////////////////////////////////////////////////////

// CServerApp:

// See Server.cpp for the implementation of this class

//

class CServerApp : public CWinApp

{

public:

CServerApp();

// Overrides

// ClassWizard generated virtual function overrides

//{{AFX_VIRTUAL(CServerApp)

public:

virtual BOOL InitInstance();

virtual int ExitInstance();

//}}AFX_VIRTUAL

// Implementation

//{{AFX_MSG(CServerApp)

// 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_LOCATION}}

// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_SERVER_H__5CADC2CA_28BB_45BC_A086_32387F3D87BC__INCLUDED_)

3、ServerDlg.cpp:

// ServerDlg.cpp : implementation file

//

#include "stdafx.h"

#include "Server.h"

#include "ServerDlg.h"

#ifdef _DEBUG

#define new DEBUG_NEW

#undef THIS_FILE

static char THIS_FILE[] = __FILE__;

#endif

/////////////////////////////////////////////////////////////////////////////

// CAboutDlg dialog used for App About

#define MYMESSAGE WM_USER+1

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()

/////////////////////////////////////////////////////////////////////////////

// CServerDlg dialog

CServerDlg::CServerDlg(CWnd* pParent /*=NULL*/)

: CDialog(CServerDlg::IDD, pParent)

{

//{{AFX_DATA_INIT(CServerDlg)

//m_IP = _T("");

//strPort = _T("");

//}}AFX_DATA_INIT

// Note that LoadIcon does not require a subsequent DestroyIcon in Win32

m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);

}

void CServerDlg::DoDataExchange(CDataExchange* pDX)

{

CDialog::DoDataExchange(pDX);

//{{AFX_DATA_MAP(CServerDlg)

DDX_Control(pDX, IDC_EDIT2, m_ServerPort);

DDX_Control(pDX, IDC_EDIT1, m_ServerIP);

//DDX_Text(pDX, IDC_EDIT1, m_IP);

// DDX_Text(pDX, IDC_EDIT2, strPort);

//}}AFX_DATA_MAP

}

BEGIN_MESSAGE_MAP(CServerDlg, CDialog)

//{{AFX_MSG_MAP(CServerDlg)

ON_WM_SYSCOMMAND()

ON_WM_PAINT()

ON_WM_QUERYDRAGICON()

ON_BN_CLICKED(IDC_BUTTON1, OnSetting)

ON_MESSAGE(MYMESSAGE,TranslateData)

ON_BN_CLICKED(IDC_BUTTON2, OnCancel)

//}}AFX_MSG_MAP

END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////

// CServerDlg message handlers

BOOL CServerDlg::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

//==========================================================================================

//=====================在对话框初始化时创建套接字===========================================

m_SockServer=socket(AF_INET,SOCK_STREAM,0);

WSAAsyncSelect(m_SockServer,m_hWnd,MYMESSAGE,FD_WRITE|FD_READ|FD_ACCEPT);

m_ConnectNum=0;

for(int i=0;i<MAXNUM;i++)

m_Clients[i]=0;

return TRUE; // return TRUE unless you set the focus to a control

}

void CServerDlg::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 CServerDlg::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 CServerDlg::OnQueryDragIcon()

{

return (HCURSOR) m_hIcon;

}

void CServerDlg::TranslateData()

{

sockaddr_in serveraddr;

char buffer[1024];

int len=sizeof(serveraddr);

int curlink=-1;

int num=-1;

for(int i=0;i<MAXNUM;i++)

{

num=recv(m_Clients[i],buffer,1024,0);

if(num!=-1)

{

curlink=i;

break;

}

}

buffer[num]=0;

if(num==-1)

{

if(m_ConnectNum<MAXNUM)

{

m_Clients[m_ConnectNum]=accept(m_SockServer,(struct sockaddr*)&serveraddr,&len);

m_ConnectNum++;

}

return;

}

for(int j=0;j<m_ConnectNum;j++)

if(j!=curlink)

send(m_Clients[j],buffer,num,0);

}

void CServerDlg::OnSetting()

{

m_ServerIP.GetWindowText(m_IP);

CString strPort;

m_ServerPort.GetWindowText(strPort);

if (m_IP.IsEmpty() || strPort.IsEmpty())

{

MessageBox("请设置服务器IP和端口号","提示");

return;

}

m_Port = atoi(strPort);

sockaddr_in serveraddr;

serveraddr.sin_family = AF_INET;

serveraddr.sin_addr.S_un.S_addr = inet_addr(m_IP);

serveraddr.sin_port = htons(m_Port);

if (bind(m_SockServer,(sockaddr*)&serveraddr,sizeof(serveraddr)))

{

MessageBox("绑定地址失败.");

return;

}

else

{

MessageBox("绑定地址成功。");

}

listen(m_SockServer,20);

}

void CServerDlg::OnCancel()

{

// TODO: Add your control notification handler code here

OnOK();

}

BOOL CServerDlg::PreTranslateMessage(MSG* pMsg)

{

// TODO: Add your specialized code here and/or call the base class

if (pMsg->message==20000)

{

TranslateData();

return TRUE;

}

else

return CDialog::PreTranslateMessage(pMsg);

}

4、ServerDlg.h:

// ServerDlg.h : header file

//

#if !defined(AFX_SERVERDLG_H__1D1C1C43_AE8A_4FEC_BCF0_09F0BC473B38__INCLUDED_)

#define AFX_SERVERDLG_H__1D1C1C43_AE8A_4FEC_BCF0_09F0BC473B38__INCLUDED_

#include "winsock2.h"

#if _MSC_VER > 1000

#pragma once

#endif // _MSC_VER > 1000

#pragma comment(lib,"ws2_32.lib")

#define MAXNUM 10

/////////////////////////////////////////////////////////////////////////////

// CServerDlg dialog

class CServerDlg : public CDialog

{

// Construction

public:

void TranslateData();

CServerDlg(CWnd* pParent = NULL);

SOCKET m_SockServer,m_SockClient;

SOCKET m_Clients[MAXNUM];

int m_ConnectNum;

CString m_IP;

UINT m_Port;

// Dialog Data

//{{AFX_DATA(CServerDlg)

enum { IDD = IDD_SERVER_DIALOG };

CEdit m_ServerPort;

CEdit m_ServerIP;

//CString m_IP;

CString strPort;

//}}AFX_DATA

// ClassWizard generated virtual function overrides

//{{AFX_VIRTUAL(CServerDlg)

public:

virtual BOOL PreTranslateMessage(MSG* pMsg);

protected:

virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support

//}}AFX_VIRTUAL

// Implementation

protected:

HICON m_hIcon;

// Generated message map functions

//{{AFX_MSG(CServerDlg)

virtual BOOL OnInitDialog();

afx_msg void OnSysCommand(UINT nID, LPARAM lParam);

afx_msg void OnPaint();

afx_msg HCURSOR OnQueryDragIcon();

afx_msg void OnSetting();

afx_msg void OnCancel();

//}}AFX_MSG

DECLARE_MESSAGE_MAP()

};

//{{AFX_INSERT_LOCATION}}

// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_SERVERDLG_H__1D1C1C43_AE8A_4FEC_BCF0_09F0BC473B38__INCLUDED_)

5、Resource.h:

//{{NO_DEPENDENCIES}}

// Microsoft Developer Studio generated include file.

// Used by Server.rc

//

#define IDM_ABOUTBOX 0x0010

#define IDD_ABOUTBOX 100

#define IDS_ABOUTBOX 101

#define IDD_SERVER_DIALOG 102

#define IDR_MAINFRAME 128

#define IDC_EDIT1 1000

#define IDC_EDIT2 1001

#define IDC_BUTTON1 1002

#define IDC_BUTTON2 1003

// Next default values for new objects

//

#ifdef APSTUDIO_INVOKED

#ifndef APSTUDIO_READONLY_SYMBOLS

#define _APS_NEXT_RESOURCE_VALUE 129

#define _APS_NEXT_COMMAND_VALUE 32771

#define _APS_NEXT_CONTROL_VALUE 1003

#define _APS_NEXT_SYMED_VALUE 101

#endif

#endif

6、stdafx.h:

// stdafx.h : include file for standard system include files,

// or project specific include files that are used frequently, but

// are changed infrequently

//

#if !defined(AFX_STDAFX_H__F5162983_68DA_4D6B_B1CD_1F46DE972FBA__INCLUDED_)

#define AFX_STDAFX_H__F5162983_68DA_4D6B_B1CD_1F46DE972FBA__INCLUDED_

#if _MSC_VER > 1000

#pragma once

#endif // _MSC_VER > 1000

#define VC_EXTRALEAN // Exclude rarely-used stuff from Windows headers

#include <afxwin.h> // MFC core and standard components

#include <afxext.h> // MFC extensions

#include <afxdisp.h> // MFC Automation classes

#include <afxdtctl.h> // MFC support for Internet Explorer 4 Common Controls

#ifndef _AFX_NO_AFXCMN_SUPPORT

#include <afxcmn.h> // MFC support for Windows Common Controls

#endif // _AFX_NO_AFXCMN_SUPPORT

//{{AFX_INSERT_LOCATION}}

// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_STDAFX_H__F5162983_68DA_4D6B_B1CD_1F46DE972FBA__INCLUDED_)

7、stdafx.cpp:

// stdafx.cpp : source file that includes just the standard includes

// Server.pch will be the pre-compiled header

// stdafx.obj will contain the pre-compiled type information

#include "stdafx.h"

三、运行测试：





运行成功！回去吃饭！