socketclientdlg.cpp

C++编程实践与技巧一书各章节的源码

// socketclientDlg.cpp : implementation file
//

#include "stdafx.h"
#include "socketclient.h"
#include "socketclientDlg.h"
#include "winsock.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
#define port 7777
char  TARGET_ADDRESS[] = "202.112.108.180";
/////////////////////////////////////////////////////////////////////////////
// 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()

/////////////////////////////////////////////////////////////////////////////
// CSocketclientDlg dialog

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

void CSocketclientDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSocketclientDlg)
	DDX_Text(pDX, IDC_EDIT1, m_send);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CSocketclientDlg, CDialog)
	//{{AFX_MSG_MAP(CSocketclientDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_SEND, OnSend)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSocketclientDlg message handlers

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

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

int CSocketclientDlg::OnSend() 
{
	char Buffer[1000];
	WSADATA wsaData;
	int retval;
	struct sockaddr_in server;
	SOCKET  conn_socket;

	this->UpdateData(true);
	strcpy(Buffer,m_send);

	if(WSAStartup(0x202,&wsaData)!=0)
	{
		AfxMessageBox("Error in Startup session");
		WSACleanup();
		return -1;
	}

	server.sin_family = AF_INET;
	server.sin_addr.s_addr =  inet_addr ( TARGET_ADDRESS );
	server.sin_port=htons(port);
	conn_socket = socket(AF_INET,SOCK_STREAM,0);
	if(conn_socket <0 )
	{
		AfxMessageBox("Client: Error Opening socket: Error");
		return -1;
	}

	if(connect(conn_socket,(LPSOCKADDR)&server, sizeof(SOCKADDR))== SOCKET_ERROR) 
	{
		int i=WSAGetLastError();
		AfxMessageBox("connect() failed");
		return -1;
	}
	retval = send(conn_socket,Buffer,m_send.GetLength(),0);
	closesocket(conn_socket);
	return 0;
	
}