comassistdlg.cpp

参考萧峰工作室的串口例程,使用mscomm 6.0编写,创新之处在于程序启动时自动检测并安装ocx控件,自动检测串口,单个文件方便使用,不需要手动安装ocx控件,另外也有许多细小功能的增加,如16进制

// COMAssistDlg.cpp : 实现文件
//

#include "stdafx.h"
#include "COMAssist.h"
#include "COMAssistDlg.h"
#include "ocx.h"
#include <string>

#ifdef _DEBUG
#define new DEBUG_NEW
#endif

#define TIMER_EVENT_AUTONEWLINE 1
#define TIMER_EVENT_AUTOSEND	2

#define TIMER_TIMEOUT_RX		100 // ms

CString g_strSetting=_T("\\COMAssist.ini");

// 用于应用程序“关于”菜单项的 CAboutDlg 对话框

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// 对话框数据
	enum { IDD = IDD_ABOUTBOX };

	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV 支持

// 实现
protected:
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()


// CCOMAssistDlg 对话框




CCOMAssistDlg::CCOMAssistDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CCOMAssistDlg::IDD, pParent)
{
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);

	m_strSend = _T("");
	m_strReceive = _T("");
	m_strPortName = _T("");
	m_nDataBits = -1;
	m_nStopBits = -1;
	m_strBaudRate = _T("");
	m_nCheckBit = -1;
	m_strRceivedBytes = _T("");
	m_strSendBytes = _T("");
	m_strSendPeriod = _T("1000");
	m_strPortState = _T("");
	m_strCurrentOpenPort = _T("");
	m_strLastSavePath = _T("");
	m_bSendHex = TRUE;
	m_bReceivedHex = TRUE;
	m_bWindowTop = FALSE;
	m_bAutoSend = FALSE;
	m_bAutoNewLine = FALSE;
	m_bReceiveOver = TRUE;
	m_nTxLength = 0;
	m_nRxLength = 0;
}

void CCOMAssistDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);

	DDX_Control(pDX, IDC_MSCOMM1, m_ctrlComm);
	DDX_Text(pDX, IDC_EDIT_SEND, m_strSend);
	DDV_MaxChars(pDX, m_strSend, 5000);
	DDX_Text(pDX, IDC_EDIT_RCV, m_strReceive);
	DDX_CBString(pDX, IDC_COMBO_COMN, m_strPortName);
	DDV_MaxChars(pDX, m_strPortName, 5);
	DDX_CBIndex(pDX, IDC_COMBO_DATABITS, m_nDataBits);
	DDX_CBIndex(pDX, IDC_COMBO_STOPBITS, m_nStopBits);
	DDX_CBString(pDX, IDC_COMBO_BAUDRATE, m_strBaudRate);
	DDV_MaxChars(pDX, m_strBaudRate, 6);
	DDX_CBIndex(pDX, IDC_COMBO_CHKBIT, m_nCheckBit);
	DDX_Text(pDX, IDC_EDIT_RCVBYTES, m_strRceivedBytes);
	DDX_Text(pDX, IDC_EDIT_SENDBYTES, m_strSendBytes);
	DDX_Text(pDX, IDC_EDIT_SENDPRD, m_strSendPeriod);
	DDV_MaxChars(pDX, m_strSendPeriod, 10);
	DDX_Text(pDX, IDC_EDIT_COMSTATE, m_strPortState);
	DDX_Check(pDX, IDC_CHECK_SENDHEX, m_bSendHex);
	DDX_Check(pDX, IDC_CHECK_RCVHEX, m_bReceivedHex);
	DDX_Check(pDX, IDC_CHECK_WNDTOP, m_bWindowTop);
	DDX_Check(pDX, IDC_CHECK_AUTOSEND, m_bAutoSend);
	DDX_Check(pDX, IDC_CHECK_AUTOCRONCE, m_bAutoNewLine);
}

BEGIN_MESSAGE_MAP(CCOMAssistDlg, CDialog)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON_MANUALSEND, OnButtonManualSend)
	ON_BN_CLICKED(IDC_BUTTON_EXIT, OnButtonExit)
	ON_BN_CLICKED(IDC_BUTTON_ABOUT, OnButtonAbout)
	ON_BN_CLICKED(IDC_BUTTON_CLRSEND, OnButtonClearSend)
	ON_BN_CLICKED(IDC_BUTTON_CLRRCV, OnButtonClearReceive)
	ON_BN_CLICKED(IDC_BUTTON_CLRSTATE, OnButtonClearState)
	ON_BN_CLICKED(IDC_BUTTON_OPENCOM, OnButtonOpenComm)
	ON_BN_CLICKED(IDC_BUTTON_RCVSAVE, OnButtonSaveReceive)
	ON_BN_CLICKED(IDC_CHECK_WNDTOP, OnCheckWndTop)
	ON_BN_CLICKED(IDC_CHECK_AUTOCRONCE, OnCheckAutoNewLine)
	ON_BN_CLICKED(IDC_CHECK_AUTOSEND, OnCheckAutoSendPeriodically)
	ON_BN_CLICKED(IDC_CHECK_SENDHEX, OnCheckSendHex)
	ON_BN_CLICKED(IDC_CHECK_RCVHEX, OnCheckRcvHex)
	ON_WM_TIMER()
	ON_WM_CLOSE()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()


// CCOMAssistDlg 消息处理程序

BOOL CCOMAssistDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// 将“关于...”菜单项添加到系统菜单中。

	// IDM_ABOUTBOX 必须在系统命令范围内。
	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);
		}
	}

	// 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动
	//  执行此操作
	SetIcon(m_hIcon, TRUE);			// 设置大图标
	SetIcon(m_hIcon, FALSE);		// 设置小图标

	// TODO: 在此添加额外的初始化代码
	InitPort();

	return TRUE;  // 除非将焦点设置到控件，否则返回 TRUE
}

void CCOMAssistDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// 如果向对话框添加最小化按钮，则需要下面的代码
//  来绘制该图标。对于使用文档/视图模型的 MFC 应用程序，
//  这将由框架自动完成。

void CCOMAssistDlg::OnPaint()
{
	if (IsIconic())
	{
		CPaintDC dc(this); // 用于绘制的设备上下文

		SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);

		// 使图标在工作矩形中居中
		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;

		// 绘制图标
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

//当用户拖动最小化窗口时系统调用此函数取得光标显示。
//
HCURSOR CCOMAssistDlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}

BEGIN_EVENTSINK_MAP(CCOMAssistDlg, CDialog)
	ON_EVENT(CCOMAssistDlg, IDC_MSCOMM1, 1, CCOMAssistDlg::OnComm, VTS_NONE)
END_EVENTSINK_MAP()

void CCOMAssistDlg::OnComm()
{
	// TODO: 在此处添加消息处理程序代码
	LONG i,len;
	COleVariant var;
	COleSafeArray safearray_inp;
	CString strtemp;
	
	// memset(rxdata,0,sizeof(rxdata));
	if(m_ctrlComm.GetCommEvent()==2)		// 事件值为2表示接收缓冲区内有字符
	{
		var.Attach(m_ctrlComm.GetInput());  // 读缓冲区并防止内存泄露
		safearray_inp=var;					// VARIANT型变量转换为ColeSafeArray型变量
		len=safearray_inp.GetOneDimSize();	// 得到有效数据长度
		for(i=0;i<len;i++)
			safearray_inp.GetElement(&i,m_byteRxData+i); // 转换为BYTE型数组
		var.Detach();
		
		HandleCommand(m_byteRxData, len);	// 这是接收数据处理函数
	}

	// UpdateData(FALSE);
}


void CCOMAssistDlg::OnButtonManualSend() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	
	if(m_strSend.GetLength()<1)
		return ;
	
	KillTimer(TIMER_EVENT_AUTONEWLINE);
	SetTimer(TIMER_EVENT_AUTONEWLINE,TIMER_TIMEOUT_RX,NULL);
	m_bReceiveOver=TRUE;
	
	CByteArray byteSend;
	if(m_bSendHex)
	{
		m_strSend=FilterHexStr(m_strSend);
		byteSend.SetSize(m_strSend.GetLength()/2);
		UINT len=HexStr2ByteArray(m_strSend,&byteSend);
		UpdateData(FALSE);
		
		if(!len)
			return ;
	}
	else
	{
		byteSend.SetSize(m_strSend.GetLength());
		for(int i=0; i<m_strSend.GetLength(); i++)
		{
			byteSend.SetAt(i,(BYTE)m_strSend.GetAt(i));
		}
	}
	
	if(!m_ctrlComm.GetPortOpen()) // 串口关闭
	{
		if(!OnOpenComm()) // 打开失败
			return ;
	}
	else // 串口已打开
	{
		if(m_strCurrentOpenPort!=m_strPortName) // 先关闭以前打开的串口
		{
			ClosePort();
			if(!OnOpenComm()) // 打开失败
				return ;
		}
	}
	
	m_ctrlComm.SetOutput(COleVariant(byteSend)); // 发送数据	
	if(m_bSendHex)
		m_nTxLength+=m_strSend.GetLength()/2;
	else
		m_nTxLength+=m_strSend.GetLength();
	m_strSendBytes.Format(_T("%d"),m_nTxLength);
	
	UpdateData(FALSE);
}

void CCOMAssistDlg::OnButtonExit() 
{
	// TODO: Add your control notification handler code here
	ClosePort();	
	
	SaveSetting();

	CDialog::OnCancel();
}

void CCOMAssistDlg::OnClose() 
{
	// TODO: Add your message handler code here and/or call default
	ClosePort();
	
	CDialog::OnClose();
}

void CCOMAssistDlg::OnButtonAbout() 
{
	// TODO: Add your control notification handler code here
		
	CAboutDlg dlgAbout;
	dlgAbout.DoModal();
}

void CCOMAssistDlg::OnButtonClearSend() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	
	m_strSend.Empty();
	
	UpdateData(FALSE);
}

void CCOMAssistDlg::OnButtonClearReceive() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	
	m_strReceive.Empty();
	
	UpdateData(FALSE);
}

void CCOMAssistDlg::OnButtonClearState() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	
	m_nTxLength=0;
	m_nRxLength=0;
	m_strSendBytes.Empty();
	m_strRceivedBytes.Empty();
	
	UpdateData(FALSE);
}

void CCOMAssistDlg::OnButtonOpenComm() 
{
	// TODO: Add your control notification handler code here
	OnOpenComm();
}

void CCOMAssistDlg::OnButtonSaveReceive() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	
	//SetCurrentDirectory(m_strLastSavePath);
	
	CString strFile;	
	CFileDialog fd(false,_T("txt"),strFile,OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,_T("文本文件(*.txt)|*.txt|所有文件(*.*)|*.*||"),NULL);
	if(fd.DoModal()==IDOK) // 获得文件路径
	{
		strFile=fd.GetPathName();
	}
	else
		return ;
	m_strLastSavePath=strFile.Left(strFile.ReverseFind(_T('\\'))+1);
	
	CFile file;
	if(!file.Open(strFile, CFile::modeCreate|CFile::modeReadWrite))
	{
		MessageBox(_T("文件创建失败!"),strFile);
		return ;
	}
	
	file.Write(m_strReceive,m_strReceive.GetLength());
	file.Flush();
	
	file.Close();
}

///////////////////////////////////////////////////////////////////////////////
void CCOMAssistDlg::InitPort(void)
{
	//m_strPortName="COM1";
	//m_strBaudRate="19200";
	//m_nDataBits=3;
	//m_nCheckBit=0;
	//m_nStopBits=0;
	
	BOOL bFirst=FALSE;
	CString strPortName;
	for(UINT i=0; i<16; i++)