chatdlg.cpp

网络通信客户端程序

// 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)
	m_Edit_Show = _T("");
	m_Edit_Port = _T("");
	//}}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)
	DDX_Control(pDX, IDC_EDIT_RECV, m_Show);
	DDX_Control(pDX, IDC_LIST1, m_IPAddr);
	DDX_Text(pDX, IDC_EDIT_RECV, m_Edit_Show);
	DDX_Text(pDX, IDC_EDIT_PORT, m_Edit_Port);
	//}}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_BUTTON_SEND, OnButtonSend)
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	//}}AFX_MSG_MAP
	ON_MESSAGE(WM_SOCKET,OnSocket)
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=socket(AF_INET,SOCK_STREAM,0);
	m_SocketList.RemoveAll();
	if (INVALID_SOCKET==m_socket)
	{
		MessageBox("创建套接字失败!");
		return false;
	}
	if (SOCKET_ERROR==WSAAsyncSelect(m_socket,this->m_hWnd,WM_SOCKET,FD_READ | FD_ACCEPT | FD_CLOSE))
	{
		MessageBox("注册网络读取事件失败!");
		return false;
	}	
	SOCKADDR_IN addrSock;
	addrSock.sin_addr.S_un.S_addr=htonl(INADDR_ANY);
	addrSock.sin_family=AF_INET;
	addrSock.sin_port=htons(8000);

	if (SOCKET_ERROR==bind(m_socket,(SOCKADDR *)&addrSock,sizeof(SOCKADDR)))
	{
		MessageBox("绑定套接字失败!");
		return false;
	}
	listen(m_socket,5);
	
	return true;
}

void CChatDlg::OnSocket(WPARAM wParam,LPARAM lParam)
{
	
	DWORD dwip;
	SOCKET socket_recv;
	int port;
	char recvBuf[100]=" 出错了";
	char a_port[20];
	SOCKET CurSock= (SOCKET)wParam;
	SOCKADDR_IN addrClient;
	int len=sizeof(SOCKADDR);
	switch (LOWORD(lParam))
	{
	case FD_ACCEPT:
		//socket_recv=accept(m_socket,(SOCKADDR*)&addrClient,&len);//socket_recv=
		socket_recv=accept(m_socket,NULL,NULL);
		MessageBox(" 连接成功!");
		m_SocketList.AddHead(socket_recv);
		//dwip=ntohl(addrClient.sin_addr.S_un.S_addr);
		//port=ntohs(addrClient.sin_port);
		//itoa(port,a_port,10);
		//SetDlgItemText(IDC_EDIT_PORT,a_port);
		//((CIPAddressCtrl*)GetDlgItem(IDC_IPADDRESS))->SetAddress(dwip);
		break;
	case FD_READ:
		UpdateData(true);		
	
		recv(CurSock,recvBuf,100,0);	
		//MessageBox(" 接收成功!");
		m_Edit_Show+="\r\n";
		m_Edit_Show+=recvBuf;
		UpdateData(false);
		//MessageBox(m_Edit_Show);
		//SetDlgItemText(IDC_EDIT_RECV,recvBuf);
		break;
	case FD_CLOSE:
		
		for (int i=0;i<m_SocketList.GetCount();i++)
		{
			if (CurSock==m_SocketList.GetAt(m_SocketList.FindIndex(i)))
			{
				MessageBox("断开成功!");
				closesocket(CurSock);
				m_SocketList.RemoveAt(m_SocketList.FindIndex(i));
				break;
			}
		}
		break;
	}
	//SetDlgItemText(IDC_EDIT_RECV,"ewrw");
	//closesocket(socket_recv);
}


void CChatDlg::OnButtonSend() 
{
	// TODO: Add your control notification handler code here
	/*SOCKET socket_send=socket(AF_INET,SOCK_STREAM,0);
	DWORD dwip;
	((CIPAddressCtrl*)GetDlgItem(IDC_IPADDRESS))->GetAddress(dwip);
	
	SOCKADDR_IN addrTo;
	addrTo.sin_addr.S_un.S_addr=inet_addr("172.17.17.25");//htonl(dwip);
	addrTo.sin_family=AF_INET;
	addrTo.sin_port=htons(8000);
	
	connect(socket_send,(SOCKADDR*)&addrTo,sizeof(SOCKADDR));*/
	CString sendBuf;
	GetDlgItemText(IDC_EDIT_SEND,sendBuf);
	if (m_SocketList.GetCount())
		send(m_SocketList.GetHead(),sendBuf,strlen(sendBuf)+1,0);
	else 
		MessageBox("对不起，所有连接已断开!");
//	closesocket(socket_send);

}

void CChatDlg::OnButton1() 
{
	// TODO: Add your control notification handler code here
	char szHostName[50];
	if (gethostname(szHostName,50)==0)
	{
		m_Show.SetWindowText(szHostName);
		hostent * ent=gethostbyname(szHostName);
		for (int i=0;ent!=NULL && ent->h_addr_list[i]!=NULL;i++)
		{
			LPCTSTR IpAddr=inet_ntoa(*(in_addr *)ent->h_addr_list[i]);
			m_IPAddr.AddString(IpAddr);
		}
	}
}