comrdlg.cpp

来自「VC++高级编程技巧与示例」· C++ 代码 · 共 158 行

// comrDlg.cpp : implementation file
//

#include "stdafx.h"
#include "comr.h"
#include "comrDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CComrDlg dialog

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

void CComrDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CComrDlg)
	DDX_Control(pDX, IDC_EDIT1, m_edit1);
	DDX_Control(pDX, IDC_MSCOMM1, m_com2);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CComrDlg, CDialog)
	//{{AFX_MSG_MAP(CComrDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_WM_KEYDOWN()
	ON_BN_CLICKED(IDC_CLEAR, OnClear)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CComrDlg message handlers

BOOL CComrDlg::OnInitDialog()
{
	
	CDialog::OnInitDialog();

	// 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_com2.SetPortOpen(TRUE);
	m_Str="";
	count=0;
	return TRUE;  // return TRUE  unless you set the focus to a control
}

// 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 CComrDlg::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 CComrDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CComrDlg::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags) 
{
	// TODO: Add your message handler code here and/or call default
	CDialog::OnKeyDown(nChar, nRepCnt, nFlags);
}

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

void CComrDlg::OnComm()
{
	// TODO: Add your control notification handler code here
	VARIANT m_input1;

	COleSafeArray m_input2;

	long length,i;

	BYTE data[1024];

	CString str,str1;
	str1.Empty();
	if(m_com2.GetCommEvent()==2)
	{
		m_input1=m_com2.GetInput();//读取缓冲区内的数据
		m_input2=m_input1;//将VARIANT型变量转换为ColeSafeArray型变量
		length=m_input2.GetOneDimSize();//确定数据长度
		for(i=0;i<length;i++)
			m_input2.GetElement(&i,data+i);//将数据转换为BYTE型数组
		for(i=0;i<length;i++)//将数组转换为Cstring型变量
		{
			char a=* (char *)(data+i);
			str.Format("%c",a);
			str1+=str;
		}
		str1+="\r\n";
		m_Str+=str1;
		SetDlgItemText(IDC_EDIT,m_Str);
		count++;
		str.Format("%d",count);
		SetDlgItemText(IDC_EDIT1,str);
	}
}


void CComrDlg::OnClear() 
{
	// TODO: Add your control notification handler code here
	CString str;
	m_Str.Empty();
	count=0;
	str.Format("%d",count);
	SetDlgItemText(IDC_EDIT,m_Str);
	SetDlgItemText(IDC_EDIT1,str);
}