scommtestdlg.cpp

串口通讯程序可以实现文件或字符的传送并可以自定义断口号

// 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_strRXDATA = _T("");
	m_strTXDATA = _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_EDIT_TXDATA, m_ctrTXDATA);
	DDX_Control(pDX, IDC_MSCOMM1, m_ctrlComm);
	DDX_Text(pDX, IDC_EDIT_RXDATA, m_strRXDATA);
	DDX_Text(pDX, IDC_EDIT_TXDATA, m_strTXDATA);
	//}}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_MANUALSEND, OnButtonManualsend)
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_BN_CLICKED(IDC_BUTTON3, OnButton3)
	ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
	ON_BN_CLICKED(IDC_BUTTON4, Onsave)
	//}}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
	if(m_ctrlComm.GetPortOpen())
m_ctrlComm.SetPortOpen(FALSE);

m_ctrlComm.SetCommPort(1); //选择com1
m_ctrlComm.SetInBufferSize(1024);
m_ctrlComm.SetOutBufferSize(1024);
if( !m_ctrlComm.GetPortOpen())
m_ctrlComm.SetPortOpen(TRUE);//打开串口
else
AfxMessageBox("cannot open serial port");

m_ctrlComm.SetSettings("9600,n,8,1"); //波特率9600，无校验，8个数据位，1个停止位 
m_ctrlComm.SetInputMode(1); //1：表示以二进制方式检取数据
m_ctrlComm.SetRThreshold(1); 
//参数1表示每当串口接收缓冲区中有多于或等于1个字符时将引发一个接收数据的OnComm事件
m_ctrlComm.SetInputLen(0); //设置当前接收区数据长度为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()


void CSCommtestDlg::OnComm() 
{
	// TODO: Add your control notification handler code here
 
//m_strRXDATA=m_strRXDATA+"I havedreceive:\r\n";

	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
    {           ////////以下你可以根据自己的通信协议加入处理代码
        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
            strtemp.Format("%c",bt); //将字符送入临时变量strtemp存放
            m_strRXDATA+=strtemp;//加入接收编辑框对应字符串 

		}

    }
 //m_strRXDATA=m_strRXDATA+"\r\n";
	UpdateData(FALSE); //更新编辑框内容
}

void CSCommtestDlg::OnButtonManualsend() 
{CString tishi;
	// TODO: Add your control notification handler code here
tishi="I had receive:";
m_ctrlComm.SetOutput(COleVariant(tishi));
CTime tNow;    
 tNow=CTime::GetCurrentTime(); 	
 CString sNow=tNow.Format(" %y.%m.%d "); 
	m_ctrlComm.SetOutput(COleVariant(sNow)); 	
	CString rNow=tNow.Format("%I:%M:%S \r\n"); 
	m_ctrlComm.SetOutput(COleVariant(rNow));//显示时间日期 	

UpdateData(TRUE); //读取编辑框内容
m_strRXDATA=m_strRXDATA+"I had sent:"+sNow+rNow;//记录自己发送的 
m_strRXDATA+=m_strTXDATA;
m_strRXDATA=m_strRXDATA+"\r\n";
UpdateData(FALSE);

m_strTXDATA=m_strTXDATA+"\r\n";
 m_ctrlComm.SetOutput(COleVariant(m_strTXDATA));//发送数据
OnButton2() ;

}

void CSCommtestDlg::OnButton1() //退出函数
{ OnOK();
	// TODO: Add your control notification handler code here
	
}



void CSCommtestDlg::OnButton3() 
{m_strRXDATA.Empty();
UpdateData(FALSE);
	// TODO: Add your control notification handler code here
	
}

void CSCommtestDlg::OnButton2() 
{m_strTXDATA.Empty();
UpdateData(FALSE);
	// TODO: Add your control notification handler code here
	
}

void CSCommtestDlg::Onsave() 

{
	// TODO: Add your control notification handler code here
	CFileDialog FileDlg(FALSE,NULL,"*.txt");
	if(FileDlg.DoModal()==IDOK)
	{
		CFile fp;
		fp.Open(FileDlg.GetPathName(),CFile::modeCreate | CFile::modeWrite);
		fp.Write(m_strRXDATA,m_strRXDATA.GetLength());
		fp.Close();
	}
}