// 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

/////////////////////////////////////////////////////////////////////////////
// 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("");
	//}}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_HEXDISPLAY, m_ctrlHexDiaplay);
	DDX_Control(pDX, IDC_CHECK_HEXSEND, m_ctrlHexSend);
	DDX_Control(pDX, IDC_MSCOMM1, m_ctrlComm);
	DDX_Text(pDX, IDC_EDIT_RXDATA, m_strRXData);
	DDX_Text(pDX, IDC_EDIT_TXDATA, m_strTXData);
	//}}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)
	//}}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
	if(m_ctrlComm.GetPortOpen())
		m_ctrlComm.SetPortOpen(FALSE);

	m_ctrlComm.SetCommPort(1); //選擇com1
	if( !m_ctrlComm.GetPortOpen())
		m_ctrlComm.SetPortOpen(TRUE);//打開串口
	else
		AfxMessageBox("cannot open serial port");

	m_ctrlComm.SetSettings("9600,n,8,1"); //波特率9600，無校驗，8個數(shù)據(jù)位，1個停止位 
	m_ctrlComm.SetInputMode(1); //1：表示以二進制方式檢取數(shù)據(jù)
	m_ctrlComm.SetRThreshold(1); 
	//參數(shù)1表示每當串口接收緩沖區(qū)中有多于或等于1個字符時將引發(fā)一個接收數(shù)據(jù)的OnComm事件
	m_ctrlComm.SetInputLen(0); //設(shè)置當前接收區(qū)數(shù)據(jù)長度為0
	m_ctrlComm.GetInput();//先預(yù)讀緩沖區(qū)以清除殘留數(shù)據(jù)


	
	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 */, OnOnCommMscomm1, VTS_NONE)
	//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()

void CSCommTestDlg::OnOnCommMscomm1() 
{
	// TODO: Add your control notification handler code here
	VARIANT variant_inp;
    COleSafeArray safearray_inp;
    LONG len,k;
    BYTE rxdata[2048]; //設(shè)置BYTE數(shù)組 An 8-bit integerthat is not signed.
    CString strtemp;
    if(m_ctrlComm.GetCommEvent()==2) //事件值為2表示接收緩沖區(qū)內(nèi)有字符
    {             ////////以下你可以根據(jù)自己的通信協(xié)議加入處理代碼
        variant_inp=m_ctrlComm.GetInput(); //讀緩沖區(qū)
        safearray_inp=variant_inp; //VARIANT型變量轉(zhuǎn)換為ColeSafeArray型變量
        len=safearray_inp.GetOneDimSize(); //得到有效數(shù)據(jù)長度
        for(k=0;k<len;k++)
            safearray_inp.GetElement(&k,rxdata+k);//轉(zhuǎn)換為BYTE型數(shù)組
        for(k=0;k<len;k++) //將數(shù)組轉(zhuǎn)換為Cstring型變量
        {
            BYTE bt=*(char*)(rxdata+k); //字符型
			if(m_ctrlHexDiaplay.GetCheck())
				strtemp.Format("%02X ",bt); //將字符以十六進制方式送入臨時變量strtemp存放，注意這里加入一個空隔
			else 
				strtemp.Format("%c",bt); //將字符送入臨時變量strtemp存放
            m_strRXData+=strtemp; //加入接收編輯框?qū)?yīng)字符串 
        }
    }
    UpdateData(FALSE); //更新編輯框內(nèi)容
	
}
//發(fā)送數(shù)據(jù)
void CSCommTestDlg::OnButtonManualsend() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE); //讀取編輯框內(nèi)容
	if(m_ctrlHexSend.GetCheck())
	{
		CByteArray hexdata;
		int len=String2Hex(m_strTXData,hexdata); //此處返回的len可以用于計算發(fā)送了多少個十六進制數(shù)
		m_ctrlComm.SetOutput(COleVariant(hexdata)); //發(fā)送十六進制數(shù)據(jù)
	}
	else 
		m_ctrlComm.SetOutput(COleVariant(m_strTXData));//發(fā)送ASCII字符數(shù)據(jù)	
}

//由于這個轉(zhuǎn)換函數(shù)的格式限制，在發(fā)送框中的十六制字符應(yīng)該每兩個字符之間插入一個空隔
//如：A1 23 45 0B 00 29
//CByteArray是一個動態(tài)字節(jié)數(shù)組，可參看MSDN幫助
int CSCommTestDlg::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);
	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;
}

//這是一個將字符轉(zhuǎn)換為相應(yīng)的十六進制值的函數(shù)
//好多C語言書上都可以找到
//功能：若是在0-F之間的字符，則轉(zhuǎn)換為相應(yīng)的十六進制字符，否則返回-1
char CSCommTestDlg::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);

}