mscommdlg.cpp

使用串口控件 在vc中基于对话框的串口编程

// MSCommDlg.cpp : implementation file
//

#include "stdafx.h"
#include "MSComm.h"
#include "MSCommDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CMSCommDlg dialog

CMSCommDlg::CMSCommDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CMSCommDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CMSCommDlg)
	m_strReceive = _T("");
	m_strSettings = _T("9600,n,8,1");
	m_test_ = 0;
	m_strSendString = _T("");
	m_nPort = 6;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
	DisplayMode = 2;
	m_iSendMode = 0;
}

void CMSCommDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMSCommDlg)
	DDX_Control(pDX, IDC_SENDTYPE, m_nSentType);
	DDX_Control(pDX, IDC_COMBO2, m_cComPort);
	DDX_Control(pDX, IDC_COMBO1, m_cDisplayMode);
	DDX_Control(pDX, IDC_RECEIVE, m_nEdit);
	DDX_Text(pDX, IDC_RECEIVE, m_strReceive);
	DDX_Text(pDX, IDC_EDIT_SETTING, m_strSettings);
	DDX_Text(pDX, IDC_EDIT4, m_test_);
	DDX_Text(pDX, IDC_EDIT_SEND, m_strSendString);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CMSCommDlg, CDialog)
	//{{AFX_MSG_MAP(CMSCommDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BTN_CLAER, OnBtnClaer)
	ON_BN_CLICKED(IDC_BTN_OPEN, OnBtnOpen)
	ON_CBN_SELCHANGE(IDC_COMBO1, OnSelchangeCombo1)
	ON_CBN_SELCHANGE(IDC_COMBO2, OnSelchangeCombo2)
	ON_BN_CLICKED(IDC_BTN_SEND, OnBtnSend)
	ON_BN_CLICKED(IDC_SENDTYPE, OnSendtype)
	ON_BN_CLICKED(IDC_BTN_SETTING, OnBtnSetting)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

//定义控制事件响应消息映射
BEGIN_EVENTSINK_MAP(CMSCommDlg, CDialog)
	ON_EVENT(CMSCommDlg, ID_COMMCTRL, 1, OnCommMscomm, VTS_NONE)
END_EVENTSINK_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMSCommDlg message handlers

BOOL CMSCommDlg::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_cDisplayMode.AddString("二进制显示");
	m_cDisplayMode.AddString("HEX显示");
	m_cDisplayMode.SetCurSel(1);

	//端口选择
	m_cComPort.AddString("COM1");
	m_cComPort.AddString("COM2");
	m_cComPort.AddString("COM3");
	m_cComPort.AddString("COM4");
	m_cComPort.AddString("COM5");
	m_cComPort.AddString("COM6");
	m_cComPort.AddString("COM7");
	m_cComPort.SetCurSel(5);

	DWORD style=WS_VISIBLE|WS_CHILD;
	if (!m_Comm.Create(NULL,style,CRect(0,0,0,0),this,ID_COMMCTRL))
	{
		TRACE0("Failed to create OLE Communications Control\n");
	    return -1; //fail to create　　
	}

/*	if(m_Comm.GetPortOpen())//如果串口是打开的，则关闭串口
	{
		m_Comm.SetPortOpen(FALSE);
	}
    m_Comm.SetCommPort(6); //选择COM1
	m_Comm.SetInBufferSize(1024); //设置输入缓冲区的大小，Bytes
	m_Comm.SetOutBufferSize(1024); //设置输入缓冲区的大小，Bytes

	if(!m_Comm.GetPortOpen()) //打开串口   
	    m_Comm.SetPortOpen(TRUE);
	m_Comm.SetInputMode(1); //设置输入方式为二进制方式
	m_Comm.SetSettings("9600,n,8,1"); //设置波特率等参数.指定波特率、奇偶校验、数据位数和停止位数
	m_Comm.SetRThreshold(1); //为1表示有一个字符引发一个事件　　　　
	m_Comm.SetInputLen(0);//为零 读出接收缓冲区中的所有内容
   */
	if(m_Comm.GetPortOpen())
	{
		SetDlgItemText(IDC_BTN_OPEN,"关闭串口");//如串口已经打开则按钮显示"关闭串口"字体
	}
	else
		SetDlgItemText(IDC_BTN_OPEN,"打开串口");

	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

//控件事件响应
void CMSCommDlg::OnCommMscomm()
{
	VARIANT variant_inp;
	COleSafeArray safearray_inp;
	LONG len,k,kk;
	BYTE rxdata[2048]; //设置BYTE数组 An 8-bit integerthat is not signed.
	CString strtemp;
    int nEvent;
	char chartemp[255];
    nEvent = m_Comm.GetCommEvent();
	
    switch(nEvent)
	{
	case 1://comEvSend 发送数据
		break;
	case 2:  //收到大于RTHresshold个字符，comEvReceive,读取数据
		
		kk = m_Comm.GetInBufferCount(); //接收到的字符数目
		
		//	MessageBox(_T("读取数据事件"),_T("TRANCE"),MB_OK);
		variant_inp = m_Comm.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 len = kk
		for(k=0;k<len;k++)
			safearray_inp.GetElement(&k,rxdata+k);//转换为BYTE型数组,存放在rxdata数组中
		for(k=0;k<len;k++)             //将数组转换为Cstring型变量
		{ 
			BYTE bt=*(char*)(rxdata+k);      //字符型,Byte (8 bits).
		//	m_test_ = bt;
			if(DisplayMode == 1)
			{
				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
				unsigned char  a = atoi(strtemp);//字符转换成十六进制数31->0x31
				m_test_ = a;//显示int a
			    m_strReceive = m_strReceive + strtemp;    //加入接收编辑框对应字符串
			}
			else if(DisplayMode == 2)
			{
				_itoa(bt, chartemp, 2); //将字符送入临时变量strtemp存放
				m_strReceive = m_strReceive + CString(chartemp[10*k]);    //加入接收编辑框对应字符串 
			}
			else 
				strtemp.Format("%c",bt); //将字符送入临时变量strtemp存放
		}

    	m_strReceive += "\r\n";
		break;
	case 3:  //CTS线状态发生了变化
		break;
	case 4:  //DSR线状态发生了变化
		break;
	case 5:  //CD线状态发生了变化
		break;
	case 6:  //Ring Indicator发生变化
		break;
    }    

	UpdateData(FALSE);           //更新编辑框内容
	m_nEdit.Invalidate();
	
}


void CMSCommDlg::OnBtnClaer() 
{
	// TODO: Add your control notification handler code here
	
	m_strReceive.Empty();
	UpdateData(FALSE);
	m_nEdit.Invalidate();
	
}

//这是一个将字符转换为相应的十六进制值的函数
//功能：若是在0-F之间的字符，则转换为相应的十六进制字符，否则返回-1
char CMSCommDlg::ConvertHexChar(char ch)
{
	if((ch>='0')&&(ch<='9'))
		return ch-0x30;
	else if((ch>='A')&&(ch<='F'))
		return ch-'A'+10;
	else if((ch>='a')&&(ch<='f'))
		return ch-'a'+10;
	else return (-1);

}



void CMSCommDlg::OnBtnOpen() 
{
	// TODO: Add your control notification handler code here
	CString str;
	GetDlgItemText(IDC_BTN_OPEN,str);
	if(str == "打开串口")
	{
		if(m_Comm.GetPortOpen())
			m_Comm.SetPortOpen(FALSE);
		
		m_Comm.SetInBufferSize(1024); //设置输入缓冲区的大小，Bytes,关闭串口后设置
		m_Comm.SetOutBufferSize(1024); //设置输入缓冲区的大小，Bytes

		m_Comm.SetCommPort(m_nPort);
		if(!m_Comm.GetPortOpen())
			m_Comm.SetPortOpen(TRUE);
		else
			AfxMessageBox("cannot open serial port !!");
		m_Comm.SetSettings(m_strSettings); //波特率9600，无校验，8个数据位，1个停止位
		m_Comm.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_Comm.SetInputMode(1);//以二进制方式读写数据   ,0是字符串格式
		m_Comm.SetInputLen(0);  //设置当前接收区数据长度为0
		m_Comm.GetInput();//先预读缓冲区以清除残留数据	
		SetDlgItemText(IDC_BTN_OPEN, "关闭串口");
	}
	else if(str == "关闭串口")
	{
		if(m_Comm.GetPortOpen())
			m_Comm.SetPortOpen(FALSE);
		SetDlgItemText(IDC_BTN_OPEN, "打开串口");
		
	}

}

void CMSCommDlg::OnSelchangeCombo1() 
{
	// TODO: Add your control notification handler code here
	switch(m_cDisplayMode.GetCurSel())
		{
		case 0:
			DisplayMode = 1;//十六进制
			break;
		case 1:
			DisplayMode = 2;//二进制
			break;
		default:
			break;
		}
}



	

void CMSCommDlg::OnSelchangeCombo2() 
{
	// TODO: Add your control notification handler code here
	switch(m_cComPort.GetCurSel())
		{
		case 0:
			m_nPort = 1;
			break;
		case 1:
			m_nPort = 2;
			break;
		case 2:
			m_nPort = 3;
			break;
		case 3:
			m_nPort = 4;
			break;
		case 4:
			m_nPort = 5;
			break;
		case 5:
			m_nPort = 6;
			break;
		case 6:
			m_nPort = 7;
			break;
		default:
			break;
		}
}
//想串口发送数据
void CMSCommDlg::OnBtnSend() 
{
	// TODO: Add your control notification handler code here
	CString strSend;
	UpdateData(TRUE);   //读取编辑框内容  
	if(m_iSendMode >= 1)
	{
		CByteArray hexdata;
		int len=String2Hex(m_strSendString ,hexdata);
		m_Comm.SetOutput(COleVariant(hexdata));
	}
	else
		m_Comm.SetOutput(COleVariant(m_strSendString));//发送数据
}

//字符串转换成十六进制
int CMSCommDlg::String2Hex(CString str, CByteArray &senddata)
{
	int hexdata,lowhexdata;
	int hexdatalen=0;
	int len=str.GetLength();
	
	senddata.SetSize(len/2);
	
	for(int i=0;i<len;)
	{
		char lstr,hstr=str[i];
		if(hstr==' ')
		{
			i++;
			continue;
		}
		i++;
		if(i>=len)
			break;
		lstr=str[i];
		hexdata=ConvertHexChar(hstr);//字符->十六进制
		lowhexdata=ConvertHexChar(lstr);
		if((hexdata==16)||(lowhexdata==16))
			break;
		else 
			hexdata=hexdata*16+lowhexdata;
		i++;
		senddata[hexdatalen]=(char)hexdata;
		hexdatalen++;
	}

	senddata.SetSize(hexdatalen);
	return hexdatalen;

}

void CMSCommDlg::OnRadioSendtype() 
{
	// TODO: Add your control notification handler code here

	
}


void CMSCommDlg::OnSendtype() 
{
	// TODO: Add your control notification handler code here
		if(m_nSentType.GetCheck() == 1)
 		m_iSendMode = 1;
}

void CMSCommDlg::OnBtnSetting() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	m_Comm.SetSettings(m_strSendString);
}