liuportdlg.cpp

一个功能完全的串口读写程序

// liuportDlg.cpp : implementation file
//

#include "stdafx.h"
#include "liuport.h"
#include "liuportDlg.h"
#include "SerialPort.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()

/////////////////////////////////////////////////////////////////////////////
// CLiuportDlg dialog

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

void CLiuportDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CLiuportDlg)
	DDX_Control(pDX, IDC_COMBO4, m_ComboCom);
	DDX_Text(pDX, IDC_EDIT2, m_SendText);
	DDX_Text(pDX, IDC_EDIT3, m_ReceiveText);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CLiuportDlg, CDialog)
	//{{AFX_MSG_MAP(CLiuportDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_BN_CLICKED(IDC_BUTTONEXIT, OnButtonexit)
	ON_BN_CLICKED(IDC_BUTTONSEND, OnButtonsend)
	ON_EN_CHANGE(IDC_EDIT2, OnChangeEdit2)
	ON_BN_CLICKED(IDC_BUTTONRECEIVE, OnButtonreceive)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CLiuportDlg message handlers

BOOL CLiuportDlg::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 CLiuportDlg::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 CLiuportDlg::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 CLiuportDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CLiuportDlg::OnButton1() 
{
	// TODO: Add your control notification handler code here
	char Command[50];
	sprintf(Command,"F:\\CS1.6\\cstrike.exe");	
	int ret=system(Command);
	
}

void CLiuportDlg::OnButtonexit() 
{
	// TODO: Add your control notification handler code here
	exit (0);
}

void CLiuportDlg::OnButtonsend() 
{
	// TODO: Add your control notification handler code here
	UpdateData();
	if (m_SendText.IsEmpty())
	{
		MessageBox(_T("Data has been not specified.Cancel Operation!"));
		return;
	}

	HANDLE hCom;
	LPDCB lpDcb;
	int i=m_ComboCom.GetCurSel();

	switch (i)
	{
	case 0:
		hCom=CreateFile("\\.\\COM1:",GENERIC_READ|GENERIC_WRITE,0,NULL,OPEN_EXISTING,FILE_FLAG_OVERLAPPED,NULL);
		break;
	case 1:
		hCom=CreateFile("\\.\\COM2:",GENERIC_READ|GENERIC_WRITE,0,NULL,OPEN_EXISTING,FILE_FLAG_OVERLAPPED,NULL);
		break;
	case 2:
		hCom=CreateFile("\\.\\COM3:",GENERIC_READ|GENERIC_WRITE,0,NULL,OPEN_EXISTING,FILE_FLAG_OVERLAPPED,NULL);
		break;
	case 3:
		hCom=CreateFile("\\.\\COM4:",GENERIC_READ|GENERIC_WRITE,0,NULL,OPEN_EXISTING,FILE_FLAG_OVERLAPPED,NULL);
		break;
	default:
		hCom=CreateFile("\\.\\COM2:",GENERIC_READ|GENERIC_WRITE,0,NULL,OPEN_EXISTING,FILE_FLAG_OVERLAPPED,NULL);
		break;
	}
	if (hCom==INVALID_HANDLE_VALUE)
	{
		MessageBox("Invalid Handle Value For Communication Port.Program Fails!");
		return ;
	}

	lpDcb=new(DCB);
	if (!GetCommState(hCom,lpDcb))
	{
		MessageBox("Program Fails To Get Communication Port State.");
		return ;
	}
	
	CString strTemp=_T("baud= parity= data= stop=");
	strTemp.Insert(strTemp.Find(_T("baud="))+5,"9600");
	strTemp.Insert(strTemp.Find(_T("data="))+5,_T("8"));
	strTemp.Insert(strTemp.Find(_T("stop="))+5,_T("1"));
	strTemp.Insert(strTemp.Find(_T("parity="))+7,_T("N"));
	
	
	if (!BuildCommDCB(strTemp,lpDcb))
	{
		MessageBox("Program Fails To Build Communication Port State.");
		return ;
	}
	
	if (!SetCommState(hCom,lpDcb))
	{
		MessageBox("Program Fails To Set Communication Port State.");
		return ;
	}

	DWORD dwTimeout=1000;
	DWORD dwWritten;
	DWORD textLen;
	OVERLAPPED OL={0};

	OL.hEvent=CreateEvent(NULL, TRUE, FALSE, NULL);
	if (OL.hEvent ==NULL )
	{
		MessageBox(_T("Program Failed!Can Not Create Event"));
		return ;
	}

	textLen=m_SendText.GetLength();
	BOOL tf=WriteFile(hCom,m_SendText,textLen,&dwWritten,&OL);
	if(!tf)
		MessageBox(_T("Program  Memory"));

	CloseHandle(OL.hEvent);
	CloseHandle(hCom);

		
}

void CLiuportDlg::OnChangeEdit2() 
{
	// TODO: If this is a RICHEDIT control, the control will not
	// send this notification unless you override the CDialog::OnInitDialog()
	// function and call CRichEditCtrl().SetEventMask()
	// with the ENM_CHANGE flag ORed into the mask.
	
	// TODO: Add your control notification handler code here
	
}

void CLiuportDlg::OnButtonreceive() 
{
	// TODO: Add your control notification handler code here
	HANDLE hCom;
	LPDCB lpDcb;
	int i=m_ComboCom.GetCurSel();
	switch (i)
	{
	case 0:
		hCom=CreateFile("\\.\\COM1:",GENERIC_READ|GENERIC_WRITE,0,NULL,OPEN_EXISTING,FILE_FLAG_OVERLAPPED,NULL);
		break;
	case 1:
		hCom=CreateFile("\\.\\COM2:",GENERIC_READ|GENERIC_WRITE,0,NULL,OPEN_EXISTING,FILE_FLAG_OVERLAPPED,NULL);
		break;
	case 2:
		hCom=CreateFile("\\.\\COM3:",GENERIC_READ|GENERIC_WRITE,0,NULL,OPEN_EXISTING,FILE_FLAG_OVERLAPPED,NULL);
		break;
	case 3:
		hCom=CreateFile("\\.\\COM4:",GENERIC_READ|GENERIC_WRITE,0,NULL,OPEN_EXISTING,FILE_FLAG_OVERLAPPED,NULL);
		break;
	default:
		hCom=CreateFile("\\.\\COM2:",GENERIC_READ|GENERIC_WRITE,0,NULL,OPEN_EXISTING,FILE_FLAG_OVERLAPPED,NULL);
		break;
	}
	if (hCom==INVALID_HANDLE_VALUE)
	{
		MessageBox("Invalid Handle Value For Communication Port.Program Fails!");
		return ;
	}
	
	lpDcb=new(DCB);
	if (!GetCommState(hCom,lpDcb))
	{
		MessageBox("Program Fails To Get Communication Port State.");
		return ;
	}
	
	CString strTemp=_T("baud= parity= data= stop=");
	strTemp.Insert(strTemp.Find(_T("baud="))+5,"9600");
	strTemp.Insert(strTemp.Find(_T("data="))+5,_T("8"));
	strTemp.Insert(strTemp.Find(_T("stop="))+5,_T("1"));
	strTemp.Insert(strTemp.Find(_T("parity="))+7,_T("N"));

	if (!BuildCommDCB(strTemp,lpDcb))
	{
		MessageBox("Program Fails To Build Communication Port State.");
		return ;
	}
	
	if (!SetCommState(hCom,lpDcb))
	{
		MessageBox("Program Fails To Set Communication Port State.");
		return ;
	}
	
	BYTE* Buffer;
	DWORD dwTimeout=1000;
	DWORD dwRead;
	DWORD dwResult;
	OVERLAPPED OL={0};
	long BufferIndex=0;
	BOOL blContinue=TRUE; 
	OL.hEvent=CreateEvent(NULL, TRUE, FALSE, NULL);
	if (OL.hEvent ==NULL )
	{
		MessageBox(_T("Program Failed!Can Not Create Event"));
		return ;
	}
	
	Buffer=(BYTE*) malloc(4000);
	if(Buffer==NULL)
	{
		MessageBox(_T("Program Failed!Can Not Allocate Memory"));
		return;
	}

	do{
		dwRead=ReadFile(hCom,Buffer,1, &dwRead, &OL);
		if (dwRead==0)
		{
			if (GetLastError() != ERROR_IO_PENDING) 
				dwRead=0 ;
			else
			{	// Write is pending.
				dwResult = WaitForSingleObject(OL.hEvent, dwTimeout);
				switch(dwResult)
				{
				case WAIT_OBJECT_0:
					if (!GetOverlappedResult(hCom, &OL, &dwRead, FALSE))
						dwRead=0 ;
					break;
				case WAIT_ABANDONED:
					dwRead=0 ;
					break;
				case WAIT_TIMEOUT:
					dwRead=0 ;
					break;
				default:
					dwRead=0 ;
					break;
				}
			}
			if (dwRead==0)
				blContinue=FALSE;
			else
			{
				BufferIndex+=dwRead;
				m_ReceiveText+=Buffer;
			}

		}
		else
		{
			BufferIndex+=dwRead;
			m_ReceiveText+=Buffer;
		}
	}while(blContinue);

	UpdateData(FALSE);
	
	CloseHandle(OL.hEvent);
	CloseHandle(hCom);
}