scommtestdlg.cpp

我的程序接受窗口中不能显示

// SCOMMTESTDlg.cpp : implementation file
//

#include "stdafx.h"
#include "SCOMMTEST.h"
#include "SCOMMTESTDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CSCOMMTESTDlg dialog

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

void CSCOMMTESTDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSCOMMTESTDlg)
	DDX_Control(pDX, IDC_BUTTON_HexDisplay, m_ctrlHexDisplay);
	DDX_Text(pDX, IDC_EDIT_RXDATA, m_strEditRXData);
	DDX_Text(pDX, IDC_EDIT_TXDATA, m_strEditTXData);
	DDX_Control(pDX, IDC_MSCOMM1, m_ctrlComm);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CSCOMMTESTDlg, CDialog)
	//{{AFX_MSG_MAP(CSCOMMTESTDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON_send, OnBUTTONsend)
	ON_EN_CHANGE(IDC_EDIT_RXDATA, OnChangeEditRxdata)
	ON_BN_CLICKED(IDC_BUTTON_HexDisplay, OnBUTTONHexDisplay)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSCOMMTESTDlg message handlers

BOOL CSCOMMTESTDlg::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_ctrlComm.SetCommPort(1);//选择COM1
 // m_ctrlComm.SetCommPort(2);//选择COM2
	m_ctrlComm.SetInputMode(1);//输入为二进制
	m_ctrlComm.SetInBufferSize(1024);// 输入缓冲区
	m_ctrlComm.SetOutBufferSize(512);// 输入缓冲区
	m_ctrlComm.SetSettings("9600,n,8,1");
	if (!m_ctrlComm.GetPortOpen())
		m_ctrlComm.SetPortOpen(TRUE);//打开口
	m_ctrlComm.SetRThreshold(1);
	m_ctrlComm.SetInputLen(0);//设置当前接受区数据长度为0
	m_ctrlComm.GetInput();	//先预读缓冲区以清除残留数据
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CSCOMMTESTDlg::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 CSCOMMTESTDlg::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 CSCOMMTESTDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

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




/*

//主要任务是从串口接受数据并显示在接受编辑筐中。
void CSCOMMTESTDlg::OnComm() 
{
	// TODO: Add your control notification handler code here
	VARIANT variant_inp;
	COleSafeArray safearray_inp;
	LONG len,k;
    //long int len,k;
	BYTE rxdata[2048];
    CString strtemp;
  //char strtemp;	
	if (m_ctrlComm.GetCommEvent()==2)
	{
		variant_inp=m_ctrlComm.GetInput();
		safearray_inp=variant_inp;
	len=safearray_inp.GetOneDimSize();
		//	len=7;
	TRACE("*********%d\n",len);
		for(k=0;k<len;k++)
			safearray_inp.GetElement(&k,rxdata+k);
    //	safearray_inp.GetCommEvent(&k,rxdata+k);
		m_strEditRXData.Empty();
		for(k=0;k<len;k++)
		{
			BYTE bt=*(char*)(rxdata+k);
	    	strtemp.Format("%c",bt);
		    m_strEditRXData+=strtemp;
		//	m_strEditRXData=3;
		//	m_strEditRXData=m_ctrlComm.GetInput();
		}
	}

	UpdateData(FALSE);
	
}
*/
void CSCOMMTESTDlg::OnComm() 
{
    // TODO: Add your control notification handler code here
  VARIANT variant_inp;
  COleSafeArray safearray_inp;
  LONG len,k;
  BYTE rxdata[2048]; //设置BYTE数组 An 8-bit integerthat is not signed.
  CString strtemp;
  if(m_ctrlComm.GetCommEvent()==2) //事件值为2表示接收缓冲区内有字符
  {
   variant_inp=m_ctrlComm.GetInput(); //读缓冲区
   safearray_inp=variant_inp; //VARIANT型变量转换为ColeSafeArray型变量
   len=safearray_inp.GetOneDimSize(); //得到有效数据长度
    for(k=0;k<len;k++)
      safearray_inp.GetElement(&k,rxdata+k);//转换为BYTE型数组
    for(k=0;k<len;k++) //将数组转换为Cstring型变量
	{
     BYTE bt=*(char*)(rxdata+k); //字符型
     if(m_ctrlHexDisplay.GetCheck())
      strtemp.Format("%02X ",bt); //将字符以十六进制方式送入临时变量strtemp存放，注意这里加入一个空隔
     else 
      strtemp.Format("%c",bt); //将字符送入临时变量strtemp存放

      m_strEditRXData+=strtemp; //加入接收编辑框对应字符串 
	}
  }
  UpdateData(FALSE); //更新编辑框内容
}














void CSCOMMTESTDlg::OnBUTTONsend() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	m_ctrlComm.SetOutput(COleVariant(m_strEditTXData));

}

void CSCOMMTESTDlg::OnChangeEditRxdata() 
{
	// 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 CSCOMMTESTDlg::OnBUTTONHexDisplay() 
{
	// TODO: Add your control notification handler code here
	
}