mycomm2dlg.cpp

串口编程的是反例子

// myComm2Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "myComm2.h"
#include "myComm2Dlg.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()

/////////////////////////////////////////////////////////////////////////////
// CMyComm2Dlg dialog

CMyComm2Dlg::CMyComm2Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CMyComm2Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CMyComm2Dlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CMyComm2Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMyComm2Dlg)
	DDX_Control(pDX, IDC_MSCOMM1, m_comm);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CMyComm2Dlg, CDialog)
	//{{AFX_MSG_MAP(CMyComm2Dlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMyComm2Dlg message handlers

BOOL CMyComm2Dlg::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_comm.SetCommPort(1);//使用串口1
    m_comm.SetSettings("9600,N,8,1");//9600//19200
    //波特率为9600，无奇偶校验，8位数据位，1位停止位
    m_comm.SetRThreshold(1); //每接收10个字符就触发1次接收事件
    m_comm.SetSThreshold(0); //不触发发送事件
    m_comm.SetInputLen(1); //每次读操作从缓冲区中取10个字符
    m_comm.SetInputMode(1); //二进制数据传输形式
    m_comm.SetPortOpen(TRUE); //打开串口
	
	cnt=0;
	hcnt=0;
	memset(buf,'\0',10000);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CMyComm2Dlg::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 CMyComm2Dlg::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
	{
		CPaintDC dc(this); // device context for painting
		HPEN		pen;
		int			i;
		  pen=CreatePen( PS_SOLID , 1, RGB(0,0,0) );
		  SelectObject(dc,pen);
		  for(i=0; i<= hcnt; i++)
			dc.TextOut(10,150 + i * 30,&(buf[i][0]));
		  DeleteObject(pen);

		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CMyComm2Dlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

BEGIN_EVENTSINK_MAP(CMyComm2Dlg, CDialog)
    //{{AFX_EVENTSINK_MAP(CMyComm2Dlg)
	ON_EVENT(CMyComm2Dlg, IDC_MSCOMM1, 1 /* OnComm */, OnOnCommMscomm1, VTS_NONE)
	//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()

void CMyComm2Dlg::OnOnCommMscomm1() 
{
	// TODO: Add your control notification handler code here
	COleVariant   varRcv;
	CByteArray    byt;
    int i;
    long num;
    switch (m_comm.GetCommEvent()){
	case 1:  //数据发送事件
           break;
    case 2:  //数据接收事件
		varRcv=m_comm.GetInput();
        varRcv.ChangeType (VT_ARRAY |VT_UI1);
        BYTE HUGEP *pbstr;
        HRESULT hr;
        hr=SafeArrayAccessData (varRcv.parray,(void HUGEP*FAR*)&pbstr);//获取安全数组指针　
        if (FAILED(hr)){
                  AfxMessageBox("获取数组指针失败！");
                  break;
		}
        num=0;
        hr=SafeArrayGetUBound (varRcv.parray,1,&num);//获取数组上界
        if (FAILED (hr)){
                  AfxMessageBox("获取数组上界失败！");
                  break;
		}
        for(i=0;i < 1; i++){
                  byt.Add(pbstr [i]);
				  sprintf(&(buf[hcnt][cnt]),"%2x ",pbstr[i]);
				  cnt=cnt+3;
					if(cnt >= 150 ){
						hcnt++;
						cnt=0;
//						memset(buf,'\0',200);
					}
		}
		SafeArrayUnaccessData (varRcv.parray);
        //此时数据已保存在二进制数组byt中，可根据需要进行相关处理
		InvalidateRect(NULL,TRUE);
		UpdateWindow();
		break;
     default:
        break;
	}	
}

BOOL CMyComm2Dlg::PreCreateWindow(CREATESTRUCT& cs) 
{
	// TODO: Add your specialized code here and/or call the base class
	
	return CDialog::PreCreateWindow(cs);
}