rs232dlg.cpp

这是串口通信软件的vc代码,主要用于与单片机进行通信,方便对单片机的学习

// RS232Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "RS232.h"
#include "RS232Dlg.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()

/////////////////////////////////////////////////////////////////////////////
// CRS232Dlg dialog

CRS232Dlg::CRS232Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CRS232Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CRS232Dlg)
	m_send = _T("");
	m_recv = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CRS232Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CRS232Dlg)
	DDX_Control(pDX, IDC_MSCOMM, m_mscom);
	DDX_Text(pDX, IDC_EDIT1, m_send);
	DDX_Text(pDX, IDC_EDIT2, m_recv);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CRS232Dlg, CDialog)
	//{{AFX_MSG_MAP(CRS232Dlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON2, OnSent)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CRS232Dlg message handlers

BOOL CRS232Dlg::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_mscom.SetCommPort(1); //串口1
	m_mscom.SetInBufferSize(1024); //设置输入缓冲区的大小，Bytes 
	m_mscom.SetOutBufferSize(512); //设置输入缓冲区的大小，Bytes 
	if(!m_mscom.GetPortOpen()) //打开串口
	{
		m_mscom.SetPortOpen(true); 
	}
	m_mscom.SetInputMode(1); //设置输入方式为二进制方式 
	m_mscom.SetSettings("9600,n,8,1"); //设置波特率等参数 
	m_mscom.SetRThreshold(1); //为1表示有一个字符即引发事件 
	m_mscom.SetInputLen(0);
/**/	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CRS232Dlg::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 CRS232Dlg::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 CRS232Dlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CRS232Dlg::OnSent() 
{
	// TODO: Add your control notification handler code here
	UpdateData(true);

	CByteArray sendArr; 
	WORD wLength;

	wLength = m_send.GetLength();
	sendArr.SetSize(wLength);
	for(int i =0; i<wLength; i++)
	{
		sendArr.SetAt(i, m_send.GetAt(i));
	}
	m_mscom.SetOutput(COleVariant(sendArr));
	
}

BEGIN_EVENTSINK_MAP(CRS232Dlg, CDialog)
    //{{AFX_EVENTSINK_MAP(CRS232Dlg)
	ON_EVENT(CRS232Dlg, IDC_MSCOMM, 1 /* OnComm */, OnOnCommMscomm, VTS_NONE)
	//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()

void CRS232Dlg::OnOnCommMscomm() 
{
	// TODO: Add your control notification handler code here
	UpdateData(true);

	VARIANT variant_inp;
	COleSafeArray safearray_inp;
	long i = 0;
	int len;
	char rxdata[1000];
	CString tmp;
	switch (m_mscom.GetCommEvent())
	{
		case 2:
		////表示接收缓冲区内有字符
			{
				variant_inp = m_mscom.GetInput();
				safearray_inp = variant_inp;
				len = safearray_inp.GetOneDimSize();
				for (i = 0; i < len; i++)
				{
					safearray_inp.GetElement(&i, &rxdata[i]); 
				} 
				rxdata[i] = '\0';
			}
			m_recv += rxdata;
			UpdateData(false);
			break;
		default:
			break;
	}	
}