testserverdlg.cpp

VC编写的socket简单聊天程序 最基本的聊天程序

// TestServerDlg.cpp : implementation file
//

#include "stdafx.h"
#include "TestServer.h"
#include "TestServerDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CTestServerDlg dialog

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

void CTestServerDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CTestServerDlg)
	DDX_Control(pDX, IDC_LRECVD, m_ctlRecvd);
	DDX_Text(pDX, IDC_EMSG, m_strMsg);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CTestServerDlg, CDialog)
	//{{AFX_MSG_MAP(CTestServerDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
	ON_BN_CLICKED(IDC_BSEND, OnBsend)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTestServerDlg message handlers

BOOL CTestServerDlg::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_sConnectSocket.SetParent(this);
	m_sListenSocket.SetParent(this);

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

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

void CTestServerDlg::OnButton1() 
{
	// TODO: Add your control notification handler code here
	if (!AfxSocketInit())
	{
		AfxMessageBox(IDP_SOCKETS_INIT_FAILED);
		return ;
	}
	m_sListenSocket.Create(4000);
	int rete = m_sListenSocket.Listen();
	if (rete == SOCKET_ERROR)
	{
		CString m_ErrorMsg;
		m_ErrorMsg = GetErrorMsg();
		MessageBox(m_ErrorMsg);
		return;
	}
	GetDlgItem(IDC_BUTTON1)->EnableWindow(FALSE);
	GetDlgItem(IDC_BUTTON2)->EnableWindow(TRUE);
}

void CTestServerDlg::OnAccept()
{
	int rett = m_sListenSocket.Accept(m_sConnectSocket);
	if (rett == SOCKET_ERROR)
	{
		CString m_ErrorMsg;
		m_ErrorMsg = GetErrorMsg();
		MessageBox(m_ErrorMsg);
		return;
		return;
	}

}

void CTestServerDlg::OnReceive()
{
	char *pBuf = new char[1025];
	int iBufSize = 1024;
	int iRcvd;
	CString strRecvd;
	iRcvd = m_sConnectSocket.Receive(pBuf,iBufSize);
	if(iRcvd == SOCKET_ERROR)
	{
		CString m_ErrorMsg;
		m_ErrorMsg = GetErrorMsg();
		MessageBox(m_ErrorMsg);
		return;
		return;
	}
	else
	{
		pBuf[iRcvd] = NULL;
		strRecvd = pBuf;
		strRecvd = "对方说 : "+strRecvd; 
		//MessageBox(strRecvd);
		m_ctlRecvd.AddString(strRecvd);
		UpdateData(FALSE);
	}
}

void CTestServerDlg::OnButton2() 
{
	// TODO: Add your control notification handler code here
	m_sListenSocket.Close();
	m_sConnectSocket.Close();
	GetDlgItem(IDC_BUTTON1)->EnableWindow(TRUE);
    GetDlgItem(IDC_BUTTON2)->EnableWindow(FALSE);
}

void CTestServerDlg::OnBsend() 
{
	// TODO: Add your control notification handler code here
	int iLen;
	int iSent;
	CString m_strMessage;
	UpdateData(TRUE);
	if(m_strMsg !="")
	{  
		m_strMessage = m_strMsg;
		iLen = m_strMessage.GetLength();
		
		iSent = m_sConnectSocket.Send(LPCTSTR(m_strMessage),iLen);
		if (iSent == SOCKET_ERROR)
		{
			CString m_ErrorMsg;
			m_ErrorMsg = GetErrorMsg();
			MessageBox(m_ErrorMsg);
			return;
		}
		else
		{
			m_strMessage = "自己说: "+m_strMessage;
			m_ctlRecvd.AddString(m_strMessage);
			m_strMsg ="";
			UpdateData(FALSE);
		}
	}
}

void CTestServerDlg::OnClose()
{
  m_sConnectSocket.Close();
}

CString CTestServerDlg::GetErrorMsg()
{
	LPVOID lpMsgBuf;
	FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM,0, GetLastError(), 
		MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), //默认语言
		(LPTSTR)&lpMsgBuf, 0, NULL );
	//显示
	//MessageBox(0,(LPCTSTR)lpMsgBuf,_T("GetLastError"),MB_OK|MB_ICONINFORMATION );
	CString m_strError;
	m_strError.Format("错误代码：%d  \n出错信息：%s",GetLastError(), (LPCTSTR)lpMsgBuf);
	
	//释放内存
	::LocalFree( lpMsgBuf );
    return m_strError;
}