serialporttestdlg.cpp

windows 下串口编程。 实现串口收发

// SerialPortTestDlg.cpp : implementation file
//

#include "stdafx.h"
#include "stdio.h"
#include "SerialPortTest.h"
#include "SerialPortTestDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CSerialPortTestDlg dialog

CSerialPortTestDlg::CSerialPortTestDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CSerialPortTestDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSerialPortTestDlg)
	m_strEditReceiveMsg = _T("");
	m_strEditSendMsg = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
	m_bSerialPortOpened=FALSE; //初始状态：串口没有打开

		//	cs_SerialPortDatas = new CString[4];
//	CStringArray cs_SerialPortDatas[4] = {"COM1","COM2","COM3","COM4"};
//	for (int i=0; i<4; i++) {
//		cs_SerialPortDatas[i] = new CString("COM1");
//	}
//	cs_SerialPortDatas = new CString[4];

	cs_SerialPortDatas[0] = "COM1";
	cs_SerialPortDatas[1] = "COM2";
	cs_SerialPortDatas[2] = "COM3";
	cs_SerialPortDatas[3] = "COM4";

	/*
    int mint_BaudDatas[] = {4800,9600,19200,38400,57600,115200};
    int mint_ParityBitDatas[] = {0,1,2};
    int mint_DataBitsDatas[] = {5,6,7,8};
    int mint_StopBitsDatas[] = {0,1,2};

	int_BaudDatas = mint_BaudDatas;
	int_ParityBitDatas = mint_ParityBitDatas;
	int_DataBitsDatas = mint_DataBitsDatas;
	int_StopBitsDatas = mint_StopBitsDatas;
*/
	int_BaudDatas[0] = 4800;
	int_BaudDatas[1] = 9600;
	int_BaudDatas[2] = 19200;
	int_BaudDatas[3] = 38400;
	int_BaudDatas[4] = 57600;
	int_BaudDatas[5] = 115200;

	int_ParityBitDatas[0] = 0;
	int_ParityBitDatas[1] = 1;
	int_ParityBitDatas[2] = 2;

	int_DataBitsDatas[0] = 5;
	int_DataBitsDatas[1] = 6;
	int_DataBitsDatas[2] = 7;
	int_DataBitsDatas[3] = 8;

	int_StopBitsDatas[0] = 0;
	int_StopBitsDatas[1] = 1;
	int_StopBitsDatas[2] = 2;
	
	// ComboBox Datas
}

void CSerialPortTestDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSerialPortTestDlg)
	DDX_Control(pDX, IDC_COMBO_StopBits, m_ctrlComboStopBits);
	DDX_Control(pDX, IDC_COMBO_ParityBits, m_ctrlComboParityBits);
	DDX_Control(pDX, IDC_COMBO_DataSize, m_ctrlComboDataSize);
	DDX_Control(pDX, IDC_COMBO_BaudSel, m_ctrlComboBaudSel);
	DDX_Control(pDX, IDC_COMBO_COMPORT, m_ctrlComboComPort);
	DDX_Text(pDX, IDC_EDIT_RECEIVEMSG, m_strEditReceiveMsg);
	DDX_Text(pDX, IDC_EDIT_SENDMSG, m_strEditSendMsg);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CSerialPortTestDlg, CDialog)
	//{{AFX_MSG_MAP(CSerialPortTestDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_MESSAGE(WM_COMM_RXCHAR, OnComm)
	ON_BN_CLICKED(IDC_BUTTON_OPEN, OnButtonOpen)
	ON_BN_CLICKED(IDC_BUTTON_CLOSE, OnButtonClose)
	ON_BN_CLICKED(IDC_BUTTON_SEND, OnButtonSend)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSerialPortTestDlg message handlers

BOOL CSerialPortTestDlg::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_ctrlComboStopBits;
//	m_ctrlComboParityBits;
//	m_ctrlComboDataSize;
//	m_ctrlComboBaudSel.;


	m_ctrlComboStopBits.SetCurSel(0); // 默认停止位 1位
	m_ctrlComboParityBits.SetCurSel(0); // 默认校验位 NONE
	m_ctrlComboDataSize.SetCurSel(0); // 默认数据位 8位
	m_ctrlComboBaudSel.SetCurSel(1); // 默认波特率 9600
	m_ctrlComboComPort.SetCurSel(0); // 默认选择串口1



	//以下两句分别设置“打开串口”、“关闭串口”两个按状态的使能状态
	GetDlgItem(IDC_BUTTON_OPEN)->EnableWindow(!m_bSerialPortOpened);
	GetDlgItem(IDC_BUTTON_CLOSE)->EnableWindow(m_bSerialPortOpened);
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

LONG CSerialPortTestDlg::OnComm(WPARAM ch, LPARAM port)
{
	m_strEditReceiveMsg += ch;
	UpdateData(FALSE);  //将接收到的字符显示在接收编辑框中
	return 0;
}

void CSerialPortTestDlg::OnButtonOpen() 
{
	// TODO: Add your control notification handler code here
	// 取得当前对话框中的串口设置参数
	int nPort = 0; // 取得串口号1
	int nBaud = 0; // 取得波特率2
	int nParityBit = 0; // 取得校验位
	int nDataBits = 0; // 取得数据位数
	int nStopBits = 0; // 取得停止位数1
	CString cs_SerialPort = cs_SerialPortDatas[nPort];
	int baud = int_BaudDatas[nBaud];
	int parityBit = int_ParityBitDatas[nParityBit];
	int dataBits = int_DataBitsDatas[nDataBits];
	int stopBits = int_StopBitsDatas[nStopBits];

	nPort=m_ctrlComboComPort.GetCurSel(); // 取得串口号1
	nBaud = m_ctrlComboBaudSel.GetCurSel(); // 取得波特率2
	nParityBit = m_ctrlComboParityBits.GetCurSel(); // 取得校验位
	nDataBits = m_ctrlComboDataSize.GetCurSel(); // 取得数据位数
	nStopBits = m_ctrlComboStopBits.GetCurSel(); // 取得停止位数1

	cs_SerialPort = cs_SerialPortDatas[nPort];
	baud = int_BaudDatas[nBaud];
	parityBit = int_ParityBitDatas[nParityBit];
	dataBits = int_DataBitsDatas[nDataBits];
	stopBits = int_StopBitsDatas[nStopBits];

	//CString strTemp = "串口号" + nPort + "  波特率" + nBaud + "停止位" + nStopBits + "数据位" + nDataSize;
//	CString strTemp = NULL;
//	strTemp.Insert	"串口号" + nPort;
//	AfxMessageBox(strTemp);

/*	if(m_SerialPort.InitPort(this, nPort, nBaud,'N',8,1,EV_RXFLAG | EV_RXCHAR,512))
	{
		m_SerialPort.StartMonitoring();
		m_bSerialPortOpened=TRUE;
	}
	*/

	if(m_SerialPort.InitPort(this, cs_SerialPort,baud,parityBit,dataBits,stopBits,EV_RXFLAG | EV_RXCHAR,512))
	{
		m_SerialPort.StartMonitoring();
		m_bSerialPortOpened=TRUE;
	}
	else
	{
		AfxMessageBox("没有发现此串口或被占用");
		m_bSerialPortOpened=FALSE;
	}
	GetDlgItem(IDC_BUTTON_OPEN)->EnableWindow(!m_bSerialPortOpened);
	GetDlgItem(IDC_BUTTON_CLOSE)->EnableWindow(m_bSerialPortOpened);
}

void CSerialPortTestDlg::OnButtonClose() 
{
	// TODO: Add your control notification handler code here
	m_SerialPort.ClosePort();//关闭串口
    m_bSerialPortOpened=FALSE;
	GetDlgItem(IDC_BUTTON_OPEN)->EnableWindow(!m_bSerialPortOpened);
	GetDlgItem(IDC_BUTTON_CLOSE)->EnableWindow(m_bSerialPortOpened);	
}

void CSerialPortTestDlg::OnButtonSend() 
{
	// TODO: Add your control notification handler code here
	if(!m_bSerialPortOpened) return; //检查串口是否打开
	UpdateData(TRUE); //读入编辑框中的数据
	m_SerialPort.WriteToPort((LPCTSTR)m_strEditSendMsg);//发送数据
}