tcpip_com.cpp

《WinCE.NET嵌入式工业用控制器及自动控制系统设计》的源代码

// TCPIP_COM.cpp : implementation file
//

#include "stdafx.h"
#include "Demo_01.h"
#include "TCPIP_COM.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CTCPIP_COM dialog


CTCPIP_COM::CTCPIP_COM(CWnd* pParent /*=NULL*/)
	: CDialog(CTCPIP_COM::IDD, pParent)
{
	//{{AFX_DATA_INIT(CTCPIP_COM)
	m_ip_addr = _T("");
	m_data = _T("");
	m_portno = 0;
	//}}AFX_DATA_INIT
}


void CTCPIP_COM::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CTCPIP_COM)
	DDX_Text(pDX, IDC_IP_ADDRESS, m_ip_addr);
	DDV_MaxChars(pDX, m_ip_addr, 16);
	DDX_Text(pDX, IDC_TCP_DATA, m_data);
	DDV_MaxChars(pDX, m_data, 256);
	DDX_Text(pDX, IDC_IP_PORTNO, m_portno);
	DDV_MinMaxInt(pDX, m_portno, 0, 65535);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CTCPIP_COM, CDialog)
	//{{AFX_MSG_MAP(CTCPIP_COM)
	ON_BN_CLICKED(IDC_CONNECT, OnConnect)
	ON_BN_CLICKED(IDC_TCP_SEND, OnTcpSend)
	ON_BN_CLICKED(IDC_DISCONNECT, OnDisconnect)
	ON_WM_CLOSE()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTCPIP_COM message handlers
BOOL CTCPIP_COM::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
//----------------- Demo_01 add -------------------
	m_ip_addr.Format(_T("192.168.127.254"));
	m_portno= 9600;
	UpdateData(FALSE);	
	socket_hd= NULL;
//--------------- end of add ----------------------
	
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}
//****************************************************************************
void CTCPIP_COM::OnConnect() 
{
	// TODO: Add your control notification handler code here
//----------------- Demo_01 add -------------------
	UpdateData(TRUE);	

	SOCKADDR_IN Addr;
	int   tcp_port, len;
	char  ip_addr[20];
	CString  msg;

	socket_hd=socket(AF_INET,SOCK_STREAM,0);
	if(socket_hd == INVALID_SOCKET)
	{
		socket_hd= NULL;
		msg.Format(_T("Can't create Socket Handle !!!!!!!!"));
		AfxMessageBox(msg, MB_OK);
		return;
	}

	memset(ip_addr, 0, sizeof(ip_addr));
	len= m_ip_addr.GetLength();
	wcstombs(ip_addr, m_ip_addr, len);
	tcp_port= m_portno;

	// connect to remote server
	memset( &Addr, 0, sizeof( SOCKADDR_IN ) );
	Addr.sin_family = AF_INET;
	Addr.sin_port = htons( tcp_port );
	Addr.sin_addr.s_addr = inet_addr(ip_addr);
	if(connect(socket_hd, (LPSOCKADDR) &Addr, sizeof(SOCKADDR_IN)) == SOCKET_ERROR)
	{
		closesocket(socket_hd);
		socket_hd= NULL;
		msg.Format(_T("Can't connect remote server !!!!!!!!"));
		AfxMessageBox(msg, MB_OK);
		return;
	}	
	else
	{
		msg.Format(_T("Connect remote server OK......."));
		AfxMessageBox(msg, MB_OK);
	}
//--------------- end of add ----------------------
}
//****************************************************************************
void CTCPIP_COM::OnTcpSend() 
{
	// TODO: Add your control notification handler code here
//----------------- Demo_01 add -------------------
	UpdateData(TRUE);	

	CString  msg;
	char  outbuff[512];
	int len;

	memset(outbuff, 0, sizeof(outbuff));
	len= m_data.GetLength();
	wcstombs(outbuff, m_data, len);
	len= strlen(outbuff);
	if(( send(socket_hd, (char *)outbuff, len, 0)) == SOCKET_ERROR)
	{
		msg.Format(_T("Send data to remote server Error !!!!!!!!!"));
		AfxMessageBox(msg, MB_OK);
		return;
	}		
	else
	{
		msg.Format(_T("Send data to remote server OK......."));
		AfxMessageBox(msg, MB_OK);
	}
//--------------- end of add ----------------------
}
//****************************************************************************
void CTCPIP_COM::OnDisconnect() 
{
	// TODO: Add your control notification handler code here
//----------------- Demo_01 add -------------------
	if(socket_hd != NULL)
	{
		closesocket(socket_hd);
		socket_hd= NULL;
	}	
//--------------- end of add ----------------------
}
//****************************************************************************
void CTCPIP_COM::OnClose() 
{
	// TODO: Add your message handler code here and/or call default
//----------------- Demo_01 add -------------------
	if(socket_hd != NULL)
	{
		closesocket(socket_hd);
		socket_hd= NULL;
	}	
//--------------- end of add ----------------------
	
	CDialog::OnClose();
}