chatterdlg.cpp

一个用vc实现的局域网点对点聊天程序.程序不太长

// chatterDlg.cpp : implementation file
//

#include "stdafx.h"
#include "chatter.h"
#include "chatterDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CChatterDlg dialog

CChatterDlg::CChatterDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CChatterDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CChatterDlg)
	m_str = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CChatterDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CChatterDlg)
	DDX_Control(pDX, IDC_EDIT_SEND, m_send);
	DDX_Control(pDX, IDC_EDIT_DISPLAY, m_Edit);
	DDX_Text(pDX, IDC_EDIT_DISPLAY, m_str);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CChatterDlg, CDialog)
	//{{AFX_MSG_MAP(CChatterDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON_SEND, OnButtonSend)
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_WM_TIMER()
	ON_WM_DESTROY()
	//}}AFX_MSG_MAP
	ON_MESSAGE(WM_RECVDATA,OnRecvData)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CChatterDlg message handlers
DWORD WINAPI RecProc(
  LPVOID lpParameter   // thread data
)
{
	SOCKET socke=((REC*)lpParameter)->socek;
	HWND hwnd=((REC*)lpParameter)->hwnd;
	SOCKADDR_IN adrin;
	char recvbuf[200];
	char teambuf[300];
	int revint;
	int len=sizeof(SOCKADDR);
	while(TRUE)
	{
	  revint=recvfrom(socke,recvbuf,200,0,(SOCKADDR*)&adrin,&len);
	   if(SOCKET_ERROR ==revint)
	   {
	      break;
	   }
	   sprintf(teambuf,"%s说:%s",inet_ntoa(adrin.sin_addr),recvbuf);
	   ::PostMessage(hwnd,WM_RECVDATA,0,(LPARAM)teambuf);
	}

return 0;
}

BOOL CChatterDlg::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
	REC *recparam=new REC;

	if(InitalSocket())
	{
	  recparam->hwnd=m_hWnd;
	 recparam->socek=m_socket;
	
	}
	HANDLE thread=CreateThread(NULL,0,RecProc,(LPVOID)recparam,0,NULL);
	CloseHandle(thread);
	// TODO: Add extra initialization here
     SetTimer(1,500,NULL);
	((CIPAddressCtrl*)GetDlgItem(IDC_IPAD))->SetAddress(127,0,0,1);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CChatterDlg::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 CChatterDlg::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 CChatterDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

BOOL CChatterDlg::InitalSocket()
{
  m_socket=socket(AF_INET,SOCK_DGRAM,0);
	  if(INVALID_SOCKET==m_socket)
	  {
        AfxMessageBox("初始化错误");
		return FALSE;
	  
	  }
	  sockaddr_in adrsocket;
	  adrsocket.sin_addr.S_un.S_addr=htonl(INADDR_ANY);
	  adrsocket.sin_family=AF_INET;
       adrsocket.sin_port=htons(6000);
	  if(SOCKET_ERROR==bind(m_socket,(SOCKADDR*)&adrsocket,sizeof(SOCKADDR)))
	  {  
		  closesocket(m_socket);
		MessageBox("bind fialuer!");
		return FALSE;
	  
	  }
	  return TRUE;
}
void CChatterDlg::OnRecvData(WPARAM wparam,LPARAM lparam)
{
	CString str=(char*)lparam;
	CString str1;
	GetDlgItemText(IDC_EDIT_DISPLAY,str1);
	str1+="\r\n";
	str1+=str;
	SetDlgItemText(IDC_EDIT_DISPLAY,str1);
}

void CChatterDlg::OnButtonSend() 
{
	// TODO: Add your control notification handler code here
	DWORD dWip;
	((CIPAddressCtrl*)GetDlgItem(IDC_IPAD))->GetAddress(dWip);

	sockaddr_in adrsocketo;
	adrsocketo.sin_addr.S_un.S_addr=htonl(dWip);
	adrsocketo.sin_family=AF_INET;
    adrsocketo.sin_port=htons(6000);
	CString strsend;
	GetDlgItemText(IDC_EDIT_SEND,strsend);
	sendto(m_socket,strsend,strsend.GetLength()+1,0,(SOCKADDR*)&adrsocketo,sizeof(SOCKADDR));
  	m_str+="\r\n";
   m_str+="I say:"+strsend;  
   UpdateData(FALSE);  
   SetDlgItemText(IDC_EDIT_SEND,"");	
}

void CChatterDlg::OnButton1()
{
	// TODO: Add your control notification handler code here
	 
	
}

void CChatterDlg::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	 m_Edit.SendMessage(WM_VSCROLL, SB_BOTTOM);
	CDialog::OnTimer(nIDEvent);
}

void CChatterDlg::OnDestroy() 
{
	CDialog::OnDestroy();
	
	// TODO: Add your message handler code here
   KillTimer(1);	
}