基于VC++实现的RS232串口通讯工具源码，方便监控，自动化等行业的应用

// SerialCommDlg.cpp : implementation file // #include "stdafx.h" #include "SerialComm.h" #include "SerialCommDlg.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif #include <atlconv.cpp> #define MESSAGELENGTH 256 ///////////////////////////////////////////////////////////////////////////// // 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() ///////////////////////////////////////////////////////////////////////////// // CSerialCommDlg dialog CSerialCommDlg::CSerialCommDlg(CWnd* pParent /*=NULL*/) : CDialog(CSerialCommDlg::IDD, pParent) { //{{AFX_DATA_INIT(CSerialCommDlg) m_szRecvData = _T(""); m_szSendData = _T(""); m_szCOMName = _T(""); m_szDataBits = _T(""); m_szParity = _T(""); m_szStopBits = _T(""); m_szBaud = _T(""); m_nSendCount = 0; m_nRecvCount = 0; m_szStatus = _T(""); //}}AFX_DATA_INIT // Note that LoadIcon does not require a subsequent DestroyIcon in Win32 m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); m_iRecvDataCount = 0; } void CSerialCommDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CSerialCommDlg) DDX_Control(pDX, IDC_BAUD, m_ctrlBaud); DDX_Control(pDX, IDC_STOP_BIT, m_ctrlStopBits); DDX_Control(pDX, IDC_PARITY, m_ctrlParity); DDX_Control(pDX, IDC_DATA_BIT, m_ctrlDataBits); DDX_Control(pDX, IDC_COM_NAME, m_ctrlCOMName); DDX_Control(pDX, IDC_RECV_DATA, m_Recv_Ctrl); DDX_Control(pDX, IDC_MSCOMM, m_COM); DDX_Text(pDX, IDC_RECV_DATA, m_szRecvData); DDX_Text(pDX, IDC_SEND_DATA, m_szSendData); DDX_CBString(pDX, IDC_COM_NAME, m_szCOMName); DDV_MaxChars(pDX, m_szCOMName, 4); DDX_CBString(pDX, IDC_DATA_BIT, m_szDataBits); DDV_MaxChars(pDX, m_szDataBits, 1); DDX_CBString(pDX, IDC_PARITY, m_szParity); DDV_MaxChars(pDX, m_szParity, 8); DDX_CBString(pDX, IDC_STOP_BIT, m_szStopBits); DDV_MaxChars(pDX, m_szStopBits, 1); DDX_CBString(pDX, IDC_BAUD, m_szBaud); DDV_MaxChars(pDX, m_szBaud, 10); DDX_Text(pDX, IDC_SEND_COUNT, m_nSendCount); DDX_Text(pDX, IDC_RECV_COUNT, m_nRecvCount); DDX_Text(pDX, IDC_STATUS, m_szStatus); DDV_MaxChars(pDX, m_szStatus, 8); //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CSerialCommDlg, CDialog) //{{AFX_MSG_MAP(CSerialCommDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_WM_TIMER() ON_WM_CREATE() ON_BN_CLICKED(IDC_CLEAR_SEND, OnClearSend) ON_BN_CLICKED(IDC_SEND, OnSend) ON_BN_CLICKED(IDC_CLEAR_RECV, OnClearRecv) ON_BN_CLICKED(IDC_SAVE, OnSave) ON_WM_VSCROLL() ON_BN_CLICKED(IDC_OPEN_CLOSE, OnOpenClose) ON_CBN_SELCHANGE(IDC_BAUD, OnSelchangeBaud) ON_CBN_SELCHANGE(IDC_COM_NAME, OnSelchangeComName) ON_CBN_SELCHANGE(IDC_DATA_BIT, OnSelchangeDataBit) ON_CBN_SELCHANGE(IDC_PARITY, OnSelchangeParity) ON_CBN_SELCHANGE(IDC_STOP_BIT, OnSelchangeStopBit) ON_BN_CLICKED(IDC_CLEAR_COUNT, OnClearCount) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CSerialCommDlg message handlers BOOL CSerialCommDlg::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_COM.SetCommPort(1); if (!m_COM.GetPortOpen()) { m_COM.SetSettings("57600,N,8,1"); m_COM.SetPortOpen(true); m_COM.SetInBufferCount(0); SetTimer(1,10,NULL); InBuffer.bstrVal = new unsigned short[MESSAGELENGTH]; OutBuffer.bstrVal = new unsigned short[MESSAGELENGTH]; OutBuffer.vt=VT_BSTR; } */ if(m_COM.GetPortOpen()) { m_COM.SetPortOpen(FALSE); } m_COM.SetCommPort(1); //选择com1 if( !m_COM.GetPortOpen()) { m_COM.SetPortOpen(TRUE);//打开串口 m_szStatus = "打开"; } else { AfxMessageBox("cannot open serial port"); } m_COM.SetSettings("9600,n,8,1"); //波特率9600，无校验，8个数据位，1个停止位 m_COM.SetInputMode(1); //1：表示以二进制方式检取数据 m_COM.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_COM.SetInputLen(0); //设置当前接收区数据长度为0 m_COM.GetInput(); //先预读缓冲区以清除残留数据 m_nSendCount = 0; m_nRecvCount = 0; //m_szStatus = "关闭"; UpdateData(FALSE); int min = 0; int max = 10; m_Recv_Ctrl.SetScrollRange (SB_VERT, min, max, TRUE); //m_Recv_Ctrl.SetScrollPos (SB_VERT, 0, TRUE); //m_ctrlCOMName.GetCount(); if (m_ctrlCOMName.SetCurSel(0) == CB_ERR || m_ctrlBaud.SetCurSel(5) == CB_ERR || m_ctrlDataBits.SetCurSel(3) == CB_ERR || m_ctrlParity.SetCurSel(0) == CB_ERR || m_ctrlStopBits.SetCurSel(0) == CB_ERR) { ::AfxMessageBox("初始化失败"); } if(m_COM.GetPortOpen()) { GetDlgItem(IDC_OPEN_CLOSE)->SetWindowText("关闭串口"); } return TRUE; // return TRUE unless you set the focus to a control } void CSerialCommDlg::OnSysCommand(UINT nID, LPARAM lParam) { if ((nID & 0xFFF0) == IDM_ABOUTBOX) { CAboutDlg dlgAbout; dlgAbout.DoModal(); } else { CDialog::OnSysCommand(nID, lParam); } } void CSerialCommDlg::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 CSerialCommDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } BEGIN_EVENTSINK_MAP(CSerialCommDlg, CDialog) //{{AFX_EVENTSINK_MAP(CSerialCommDlg) ON_EVENT(CSerialCommDlg, IDC_MSCOMM, 1 /* OnComm */, OnCommMscomm, VTS_NONE) //}}AFX_EVENTSINK_MAP END_EVENTSINK_MAP() void CSerialCommDlg::OnCommMscomm() { UpdateData(TRUE);//取控件的数据 switch(m_COM.GetCommEvent()) { case 1: //comEvSend事件 { //如有数据要发送，可采用以下代码： //::AfxMessageBox("发送数据"); // OnSend(); } break; case 2: //comEvReceiv事件，有数据到达 { VARIANT variant_inp; COleSafeArray safearray_inp; LONG len,k; BYTE rxdata[2048]; //设置BYTE数组 An 8-bit integerthat is not signe