clientdlg.cpp

给出了在Winsock的支持下用Visual C++制作聊天室的过程,不必关心系统内部复杂的机制.

// 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
Yourname thename[200];
int nameflag=0;
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)
	m_name = _T("XX");
	m_servername = _T("WKS65");
	//}}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_FLIST, m_flist);
	DDX_Control(pDX, IDC_LIST1, m_list);
	DDX_Control(pDX, IDC_EDIT2, m_info);
	DDX_Text(pDX, IDC_EDIT1, m_name);
	DDX_Text(pDX, IDC_EDIT3, m_servername);
	//}}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_BUTTONSEND, OnButtonsend)
	ON_BN_CLICKED(IDC_BUTTONJOIN, OnButtonjoin)
	//}}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
	pMysocket = new CMysocket(this); //创建套接字对象
	if (!pMysocket->Create()) //创建套接字
	{
		delete pMysocket;
		MessageBox("套接字创建失败.");
		return false;
	}
	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;
}

CString sendip;

void CClientDlg::OnButtonsend() 
{
	// TODO: Add your control notification handler code here
	Buffer buf;
	int index=-1;
	CString str,temp,st1,st2,st3;
	index=m_flist.GetCurSel();
	if(index!=-1)
		m_flist.GetText(index,st2);
	else
		st2="所有好友";
	for(int i=0;i<nameflag;i++)
	{
		st1=thename[i].name;
		if(st1==st2)
			sendip=thename[i].ip;
	}
	m_info.GetWindowText(str);
	if (str.IsEmpty()|m_name.IsEmpty())
		return;
	st3=st2;
	if(st2!="所有好友")
		st2="我";
	temp.Format("%s 对 %s 说: %s",m_name,st2,str);
	strncpy(buf.info,temp,200);
	strncpy(buf.ip,sendip,16);		
	int num = pMysocket->Send(&buf,216);
	CString st;
	st.Format("我 对 %s 说: %s",st3,str);
	if(st2!="所有好友")
	{
		if(m_list.GetCount()>=50)
			m_list.ResetContent();
		m_list.InsertString(m_list.GetCount(),st);
	}
	m_info.SetWindowText("");
	m_info.SetFocus();
}

void CClientDlg::ReceiveData()
{
	char name[20]="";	
	Buffer buf;
	strncpy(buf.info,"",200);
	strncpy(buf.ip,"",16);
	//接收传来的数据
	int factdata = pMysocket->Receive(&buf,216);
	CString tname,ina,infos;
	//int i = m_list.GetCount();
	int j = m_flist.GetCount();
	//将数据添加到列表框中
	//ipna=buf.ip;
	
	infos=buf.info;
	strncpy(name,infos,20);
	if(name[0]=='P'&& name[1]=='N')
	{
		strncpy(thename[nameflag].name,infos,20);
		int u=2;
		while(thename[nameflag].name[u]!=NULL)
		{
			thename[nameflag].name[u-2]=thename[nameflag].name[u];
			u++;
		}
		thename[nameflag].name[u-2]=NULL;
		strncpy(thename[nameflag].ip,buf.ip,16);
		ina=thename[nameflag].name;	
		m_flist.InsertString(j,thename[nameflag].name);
		nameflag++;
	}
	else 
	{
		if(m_list.GetCount()>=50)		
			m_list.ResetContent();
		m_list.InsertString(m_list.GetCount(),infos);
	}	
}
//int closeflag=0;
void CClientDlg::OnButtonjoin() 
{
	// TODO: Add your control notification handler code here
	UpdateData(true);
	m_flist.InsertString(0,"所有好友");
	strncpy(thename[nameflag].name,"所有好友",20);
	strncpy(thename[nameflag].ip,"0.0.0.0",16);
	nameflag++;
	CString servername = m_servername; //读取服务器名称
	int port;
	port = 70; //获取端口
	
	if (! pMysocket->Connect(servername,port)) //连接服务器
	{
		MessageBox("连接服务器失败!");
		return;
	}
	//closeflag=1;
	Buffer buf;
	CString str,strip="255.255.255.255";
	str.Format("PN%s",m_name);
	strncpy(buf.info,str,200);
	strncpy(buf.ip,strip,16);	
	int num = pMysocket->Send(&buf,216);
}
void CClientDlg::closesocket()
{
	/*Buffer buf;
	CString sendip;
	UpdateData();
	CString st1,str;	
	for(int i=0;i<nameflag;i++)
	{
		st1=thename[i].name;
		if(st1==m_name)
			sendip=thename[i].ip;
	}
	str.Format("_EXIT%s",m_name);
	strncpy(buf.info,str,200);
	strncpy(buf.ip,sendip,16);	
	int num = pMysocket->Send(&buf,216);
	pMysocket->Close();
	delete pMysocket;*/
}
void CClientDlg::OnCancel() 
{
	// TODO: Add extra cleanup here
/*	if(closeflag==1)
		closesocket();*/
	CDialog::OnCancel();
}