串口编程

开发平台：
Visual C++

SerialCommDlg.cpp：源码内容
							// SerialCommDlg.cpp : implementation file
//
#include "stdafx.h"
#include "SerialComm.h"
#include "SerialCommDlg.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()
/////////////////////////////////////////////////////////////////////////////
// CSerialCommDlg dialog
CSerialCommDlg::CSerialCommDlg(CWnd* pParent /*=NULL*/)
: CDialog(CSerialCommDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSerialCommDlg)
	m_szSend = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CSerialCommDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSerialCommDlg)
	DDX_Control(pDX, IDC_DATARX, m_DataRx);
	DDX_Text(pDX, IDC_SEND, m_szSend);
	//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CSerialCommDlg, CDialog)
//{{AFX_MSG_MAP(CSerialCommDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_OPEN, OnOpen)
ON_BN_CLICKED(IDC_WRITE, OnWrite)
ON_BN_CLICKED(IDC_READAVAILABLE, OnReadavailable)
	ON_BN_CLICKED(IDC_READ_10, OnRead10)
	ON_BN_CLICKED(IDC_READ_1, OnRead1)
	ON_BN_CLICKED(IDC_READ_UPTO, OnReadUpto)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CSerialCommDlg message handlers
BOOL CSerialCommDlg::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 CSerialCommDlg::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 CSerialCommDlg::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 CSerialCommDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}
void CSerialCommDlg::OnOpen() 
{
	m_theCommPort.Init ("COM1",9600,0,1,8);
	m_theCommPort.Start ();
	
}
void CSerialCommDlg::OnWrite() 
{
	
	UpdateData ();
   	m_theCommPort.Write(m_szSend, m_szSend.GetLength () );	
}
void CSerialCommDlg::OnReadavailable() 
{
	std::string szData;
	m_theCommPort.ReadAvailable (szData);	
	m_DataRx.SetWindowText ( szData.c_str() );
}
void CSerialCommDlg::OnRead10() 
{
	std::string szData;
	m_theCommPort.Read_N (szData,10,-1);
	m_DataRx.SetWindowText ( szData.c_str() );
	
}
void CSerialCommDlg::OnRead1() 
{
	std::string szData;
	m_theCommPort.Read_N (szData,1,-1);
	m_DataRx.SetWindowText ( szData.c_str() );
	
}
void CSerialCommDlg::OnReadUpto() 
{
	std::string szData;
	long alCount;
	m_theCommPort.Read_Upto (szData,'X',&alCount,-1);
	m_DataRx.SetWindowText ( szData.c_str() );
	
}

						