scommtestdlg.cpp

PCusb,一个读取串口原程序,VC++6.0

// 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

#define NUM_HCS_TO_CHECK 10
#define USB_VID    (0x04D8)         // XXXX-十六进制数，需更改。
#define USB_PID    (0x000A)         // XXXX-十六进制数，需更改。

/////////////////////////////////////////////////////////////////////////////
// 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("");
	m_timer = 0;

	//}}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_CHECK_AUTOSEND, m_check_autosend);
	DDX_Control(pDX, IDC_MSCOMM1, m_ctrlComm);
	DDX_Text(pDX, IDC_EDIT_RXDATA, m_strRXData);
	DDX_Text(pDX, IDC_EDIT_TXDATA, m_strTXData);
	DDX_Text(pDX, IDC_EDIT_MS, m_timer);
	//}}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_WM_TIMER()
	ON_BN_CLICKED(IDC_CHECK_AUTOSEND, OnCheckAutosend)
	ON_EN_CHANGE(IDC_EDIT_MS, OnChangeEditMs)
	ON_BN_CLICKED(IDC_CLRTXD, OnClrtxd)
	ON_BN_CLICKED(IDC_CLRRXD, OnClrrxd)
	ON_WM_SHOWWINDOW()
	//}}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
	m_timevalue=1000;
	m_timer=1000;
	UpdateData(FALSE);	

	m_bAutoSend=FALSE;
	id_Search_USB_Ok=0;
	id_Search_Send_Ok=0;
	Search_Count=0;
	GetDlgItem(IDC_zhuangtai)->SetWindowText("正在搜索USB设备,请稍后...");
	SetTimer(2,100,NULL);
	SetTimer(3,1000,NULL);

    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() 
{
	UpdateData(TRUE);
	CString	m_RXData;
	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_RXData+=strtemp; //加入接收编辑框对应字符串 
            if(id_Search_USB_Ok==0)
			{
				if(m_RXData=="common:USBID20080724")
					{id_Search_USB_Ok=1;m_RXData="";}
			}
			else if(m_RXData=="keyok")
			{
				m_strRXData="";
                if(m_check_autosend.GetCheck())
					{OnCheckAutosend();m_check_autosend.SetCheck(0);}
				else
					{OnCheckAutosend();m_check_autosend.SetCheck(1);}
			}
			else 
			{m_strRXData+=strtemp;} //加入接收编辑框对应字符串 
        }
    }
    UpdateData(FALSE); //更新编辑框内容	
}

void CSCommTestDlg::OnButtonManualsend() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE); //读取编辑框内容
    m_ctrlComm.SetOutput(COleVariant(m_strTXData));//发送数据
	//void CButton::SetCheck(int nCheck);
}

void CSCommTestDlg::OnCloseSerial() 
{
	// TODO: Add your control notification handler code here
	KillTimer(1);
	id_USBLink_HAVE=0;
    m_bAutoSend=FALSE;
	UpdateData(FALSE);	
	m_ctrlComm.SetPortOpen(FALSE);//关闭串口
	GetDlgItem(IDC_BUTTON_MANUALSEND)->EnableWindow(FALSE);
	GetDlgItem(IDC_CHECK_AUTOSEND)->EnableWindow(FALSE);
	GetDlgItem(IDC_EDIT_MS)->EnableWindow(FALSE);
	GetDlgItem(IDC_STATIC_MS)->EnableWindow(FALSE);
	GetDlgItem(IDC_zhuangtai)->SetWindowText("USB设备已断开");
	id_Search_USB_Ok=0;
	id_USBLink_HAVE=0;
	Search_Count=0x00;
}

void CSCommTestDlg::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	if(nIDEvent==1)
	{
	    OnButtonManualsend();
	}
    else if(nIDEvent==2)
	{
		if(id_Search_USB_Ok)
		{
			KillTimer(2);  //取消定时
			id_Search_Send_Ok=0;
			Search_Count=0;
			GetDlgItem(IDC_zhuangtai)->SetWindowText("USB设备已连接");
			GetDlgItem(IDC_BUTTON_MANUALSEND)->EnableWindow(TRUE);
			GetDlgItem(IDC_CHECK_AUTOSEND)->EnableWindow(TRUE);	
			m_check_autosend.SetCheck(0);
            SearchUSB();	
		}
		else
		{
			if(id_Search_Send_Ok)
			{
				id_Search_Send_Ok=0;
			    m_ctrlComm.SetPortOpen(FALSE);//关闭串口
			}

			if(Search_Count>0x07)
			{
				Search_Count=0x00;
			    GetDlgItem(IDC_zhuangtai)->SetWindowText("USB设备未连接!");
			}
			else Search_Count++;

			if(SearchSerial(Search_Count))
			{
				SearchOnOpenSerial(Search_Count);
				if(id_Search_Send_Ok)
				{
					m_ctrlComm.SetOutput(COleVariant("common:searchUSBID"));//发送数
				}
			}
		}		
	}
	else if(nIDEvent==3)  //不停地搜索SUB设备,用于判断USB是否连接和断开
	{
		if(id_USBLink_HAVE==1)
		{
            SearchUSBOne();
			if(id_USBLink_OK==0)
			{
					KillTimer(1);
					id_USBLink_HAVE=0;
					m_bAutoSend=FALSE;	
					m_ctrlComm.SetPortOpen(FALSE);//关闭串口
					GetDlgItem(IDC_BUTTON_MANUALSEND)->EnableWindow(FALSE);
					GetDlgItem(IDC_CHECK_AUTOSEND)->EnableWindow(FALSE);
					GetDlgItem(IDC_EDIT_MS)->EnableWindow(FALSE);
					GetDlgItem(IDC_STATIC_MS)->EnableWindow(FALSE);
					GetDlgItem(IDC_zhuangtai)->SetWindowText("USB设备已断开!");
					id_Search_USB_Ok=0;
					id_USBLink_HAVE=0;
					Search_Count=0x00;
					id_Search_Send_Ok=0;
					Search_Count=0;
					SetTimer(2,100,NULL); 
			}
		}
	}

	CDialog::OnTimer(nIDEvent);
}

void CSCommTestDlg::OnCheckAutosend() 
{
	// TODO: Add your control notification handler code here
	m_bAutoSend=!m_bAutoSend;
    if(m_bAutoSend)
	{
      SetTimer(1,m_timevalue,NULL);
	  GetDlgItem(IDC_EDIT_MS)->EnableWindow(TRUE);
	  GetDlgItem(IDC_STATIC_MS)->EnableWindow(TRUE);
	}
    else
	{
      KillTimer(1);  //取消定时
	  GetDlgItem(IDC_EDIT_MS)->EnableWindow(FALSE);
	  GetDlgItem(IDC_STATIC_MS)->EnableWindow(FALSE);
	}
}

void CSCommTestDlg::OnChangeEditMs() 
{
	// TODO: If this is a RICHEDIT control, the control will not
	// send this notification unless you override the CDialog::OnInitDialog()
	// function and call CRichEditCtrl().SetEventMask()
	// with the ENM_CHANGE flag ORed into the mask.
	
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	m_timevalue=m_timer;	
	if(m_timevalue==NULL)
	{   
	   KillTimer(1);
	}
	else
	{
	   SetTimer(1,m_timevalue,NULL);	
	}
	UpdateData(FALSE);	
}

void CSCommTestDlg::OnClrtxd() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	m_strTXData="";
    UpdateData(FALSE);
}

void CSCommTestDlg::OnClrrxd() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	m_strRXData="";
    UpdateData(FALSE);
}

void CSCommTestDlg::SearchOnOpenSerial(short com)
{
	  short comcount;
	  comcount=com;
	  id_Search_Send_Ok=0;
	  m_ctrlComm.SetCommPort(comcount); //选择com

	  if(m_ctrlComm.GetPortOpen())
	     return;