// SockDlg.cpp : implementation file
//
#include “stdafx.h”
#include “Sock.h”
#include “SockDlg.h”
#include “MySocket.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()
/////////
// CSockDlg dialog
CSockDlg::CSockDlg(CWnd* pParent /*=NULL*/)
: CDialog(CSockDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CSockDlg)
m_strMessage = _T(“”);
m_strName = _T(“”);
m_iType = -1;
m_iPort = 0;
m_static = _T(“”);
m_bIsbusy=FALSE;
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CSockDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CSockDlg)
DDX_Control(pDX, IDC_LSENT, m_ctlSent);
DDX_Control(pDX, IDC_LRECVD, m_ctlRecvd);
DDX_Control(pDX, IDC_BCONNECT, m_ctlConnect);
DDX_Text(pDX, IDC_EMSG, m_strMessage);
DDX_Text(pDX, IDC_ESERVNAME, m_strName);
DDX_Radio(pDX, IDC_RCLIENT, m_iType);
DDX_Text(pDX, IDC_ESERVPORT, m_iPort);
DDX_Text(pDX, IDC_STATICMSG, m_static);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CSockDlg, CDialog)
//{{AFX_MSG_MAP(CSockDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_RCLIENT, OnRType)
ON_BN_CLICKED(IDC_BCONNECT, OnBconnect)
ON_BN_CLICKED(IDC_BSEND, OnBsend)
ON_BN_CLICKED(IDC_BCLOSE, OnBclose)
ON_WM_TIMER()
ON_WM_CLOSE()
ON_BN_CLICKED(IDC_RSERVER, OnRType)
ON_EN_SETFOCUS(IDC_EMSG, OnSetfocusEmsg)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////
// CSockDlg message handlers
BOOL CSockDlg::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_iType = 0;
m_strName = “loopback”;
m_iPort = 4000;
// Update the controls
UpdateData(FALSE);
// Set the socket dialog pointers
m_sConnectSocket.SetParent(this);
m_sListenSocket.SetParent(this);
return TRUE; // return TRUE unless you set the focus to a control
}
void CSockDlg::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 CSockDlg::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 CSockDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
void CSockDlg::OnRType()
{
// TODO: Add your control notification handler code here
// Sync the controls with the variables
UpdateData(TRUE);
// Which mode are we in?
if (m_iType == 0) // Set the appropriate text on the button
m_ctlConnect.SetWindowText(“C&onnect”);
else
m_ctlConnect.SetWindowText(“&Listen”);
}
void CSockDlg::OnBconnect()
{
UpdateData(TRUE);
// Disable the connection and type controls
GetDlgItem(IDC_BCONNECT)->EnableWindow(FALSE);
GetDlgItem(IDC_ESERVNAME)->EnableWindow(FALSE);
GetDlgItem(IDC_ESERVPORT)->EnableWindow(FALSE);
// GetDlgItem(IDC_STATICNAME)->EnableWindow(FALSE);
// GetDlgItem(IDC_STATICPORT)->EnableWindow(FALSE);
GetDlgItem(IDC_RCLIENT)->EnableWindow(FALSE);
GetDlgItem(IDC_RSERVER)->EnableWindow(FALSE);
// GetDlgItem(IDC_STATICTYPE)->EnableWindow(FALSE);
// Are we running as client or server?
if (!m_bIsbusy)
{ if (m_iType == 0)
{
// Client, create a default socket
m_sConnectSocket.Create();
// Open the connection to the server
m_sConnectSocket.Connect(m_strName, m_iPort);
}
else
{
GetDlgItem(IDC_BCLOSE)->EnableWindow(FALSE);
// Server, create a socket bound to the port specified
m_sListenSocket.Create(m_iPort);
// Listen for connection requests
m_sListenSocket.Listen();
}}else
{
AfxMessageBox(“Busy now”);
}
this->SetTimer(1,1,0);
}
void CSockDlg::OnAccept()
{
if (m_bIsbusy)
{
// Create a rejection socket
// Create a message to send
CString strMsg = “Too many connections, try again later.”;
// Accept using the rejection socket
m_sListenSocket.Accept(sRjctSock);
// Send the rejection message
sRjctSock.Send(LPCTSTR(strMsg), strMsg.GetLength());
AfxMessageBox(“Client Try To connect”);
// Close the socket
sRjctSock.Close();
}
else
{
// Accept the connection request
m_sListenSocket.Accept(m_sConnectSocket);\
// Mark the socket as connected
m_bIsbusy = TRUE;
// Enable the text and message controls
GetDlgItem(IDC_EMSG)->EnableWindow(TRUE);
GetDlgItem(IDC_BSEND)->EnableWindow(TRUE);
GetDlgItem(IDC_STATICMSG)->EnableWindow(TRUE);
}
}
void CSockDlg::OnConnect()
{
GetDlgItem(IDC_EMSG)->EnableWindow(TRUE);
GetDlgItem(IDC_BSEND)->EnableWindow(TRUE);
// GetDlgItem(IDC_STATICMSG)->EnableWindow(TRUE);
GetDlgItem(IDC_BCLOSE)->EnableWindow(TRUE);
}
void CSockDlg::OnSend()
{
}
void CSockDlg::OnRecive()
{
static char *pBuf = new char[1025];
static int iBufSize = 1024;
static int iRcvd;
static CString strRecvd;
// Receive the message
iRcvd = m_sConnectSocket.Receive(pBuf, iBufSize);
// Did we receive anything?
if (iRcvd == SOCKET_ERROR)
{
}
else
{
// Truncate the end of the message
pBuf[iRcvd] = NULL;
// Copy the message to a CString
strRecvd = pBuf;
// Add the message to the received list box
m_ctlRecvd.AddString(strRecvd);
MessageBeep(MB_ICONASTERISK);
// Sync the variables with the controls
UpdateData(FALSE);
}
}
void CSockDlg::Onclose()
{
m_sConnectSocket.Close();
// Disable the message sending controls
GetDlgItem(IDC_EMSG)->EnableWindow(FALSE);
GetDlgItem(IDC_BSEND)->EnableWindow(FALSE);
// GetDlgItem(IDC_STATICMSG)->EnableWindow(FALSE);
GetDlgItem(IDC_BCLOSE)->EnableWindow(FALSE);
// Are we running in Client mode?
if (m_iType == 0)
{
// Yes, so enable the connection configuration controls
GetDlgItem(IDC_BCONNECT)->EnableWindow(TRUE);
GetDlgItem(IDC_ESERVNAME)->EnableWindow(TRUE);
GetDlgItem(IDC_ESERVPORT)->EnableWindow(TRUE);
// GetDlgItem(IDC_STATICNAME)->EnableWindow(TRUE);
// GetDlgItem(IDC_STATICPORT)->EnableWindow(TRUE);
GetDlgItem(IDC_RCLIENT)->EnableWindow(TRUE);
GetDlgItem(IDC_RSERVER)->EnableWindow(TRUE);
// GetDlgItem(IDC_STATICTYPE)->EnableWindow(TRUE);
}
m_bIsbusy=FALSE;
}
void CSockDlg::OnBsend()
{
int iLen;
int iSent;
// Sync the controls with the variables
UpdateData(TRUE);
// Is there a message to be sent?
if (m_strMessage != “”)
{
// Get the length of the message
iLen = m_strMessage.GetLength();
// Send the message
iSent = m_sConnectSocket.Send(LPCTSTR(m_strMessage), iLen);
// Were we able to send it?
if (iSent == SOCKET_ERROR)
{
}
else
{
// Add the message to the list box.
m_ctlSent.AddString(m_strMessage);
// Sync the variables with the controls
UpdateData(FALSE);
}
}
}
void CSockDlg::OnBclose()
{
Onclose();
OnClose();
}
void CSockDlg::OnButton5()
{
OnRecive();
}
int CSockDlg::DoModal()
{
// TODO: Add your specialized code here and/or call the base class
return CDialog::DoModal();
}
void CSockDlg::OnTimer(UINT nIDEvent)
{
OnRecive();
CDialog::OnTimer(nIDEvent);
}
void CSockDlg::OnClose()
{
// TODO: Add your message handler code here and/or call default
this->KillTimer(1);
CDialog::OnClose();
}
void CSockDlg::OnSetfocusEmsg()
{
m_strMessage=” “;
UpdateData(FALSE);
}
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