lx2dlg.cpp

用visual c++进行的一个简单聊天程序

// lx2Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "lx2.h"
#include "lx2Dlg.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()

/////////////////////////////////////////////////////////////////////////////
// CLx2Dlg dialog

CLx2Dlg::CLx2Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CLx2Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CLx2Dlg)
	m_msg = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CLx2Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CLx2Dlg)
	DDX_Control(pDX, IDC_LISTEN, m_listen);
	DDX_Control(pDX, IDC_SEND, m_send);
	DDX_Control(pDX, IDC_CONTENT, m_ctrl);
	DDX_Text(pDX, IDC_CONTENT, m_msg);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CLx2Dlg, CDialog)
	//{{AFX_MSG_MAP(CLx2Dlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_LISTEN, OnListen)
	ON_WM_DESTROY()
	ON_BN_CLICKED(IDC_SEND, OnSend)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CLx2Dlg message handlers

BOOL CLx2Dlg::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_send.EnableWindow(FALSE);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CLx2Dlg::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 CLx2Dlg::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 CLx2Dlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CLx2Dlg::OnListen() 
{
	m_server.Create(1000);				//	采用1000号端口
	m_server.Listen();					//	监听
				
}


void CLx2Dlg::ShowMsg()
{
	char buf[255];
	m_recv.Receive(buf, 255);
	CString msg;
	msg.Format("%s", buf);
	AfxMessageBox(msg);
}
void CLx2Dlg::ShowAccept()
{
	m_server.Accept(m_recv);
	AfxMessageBox("Server端连接成功");
	m_send.EnableWindow(TRUE);			//	连接成功，可以发送
	m_listen.EnableWindow(FALSE);		//	同时禁止侦听按钮
}

void CLx2Dlg::OnDestroy() 
{
	CDialog::OnDestroy();
	
	// TODO: Add your message handler code here
	m_server.Close();
	m_recv.Close();
}

void CLx2Dlg::OnSend() 
{
	UpdateData(TRUE);			//更新数据，使m_msg得到当前框中文本
	m_recv.Send(m_msg, 255);	//发送数据
	m_ctrl.SetSel(0, -1);		//全选发送框文字
	m_ctrl.ReplaceSel("", TRUE);//将发送框置空
}