charterminaldlg.cpp

可以接收HEX CHA. 比较容易理解.RS232 DEMO

// CharTerminalDlg.cpp : implementation file
//

#include "stdafx.h"
#include "mscomm.h"
#include "CharTerminal.h"
#include "CharTerminalDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CCharTerminalDlg dialog

CCharTerminalDlg::CCharTerminalDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CCharTerminalDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CCharTerminalDlg)
	m_strSend = _T("");
	m_port=1;
	m_bort=4;
	m_hex=1;
		
	//m_disconnect.EnableWindow(FALSE);
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CCharTerminalDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CCharTerminalDlg)
	DDX_Text(pDX, IDC_SEND, m_strSend);
	DDV_MaxChars(pDX, m_strSend, 100);
	DDX_Control(pDX, IDC_BUTTON1,m_connect);
	DDX_CBIndex(pDX, IDC_COMBO1, m_port);
	DDX_CBIndex(pDX, IDC_COMBO2, m_bort);
	DDX_Text(pDX, IDC_EDIT_RECEIVE, m_strReceive);
	DDX_Control(pDX, IDC_SEND1, m_send);
	DDX_Check(pDX,IDC_RADIO1,m_hex);
	DDX_Check(pDX,IDC_RADIO2,m_cha);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CCharTerminalDlg, CDialog)
	//{{AFX_MSG_MAP(CCharTerminalDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_SEND1, OnSend1)
	//}}AFX_MSG_MAP
	ON_BN_CLICKED(IDC_BUTTON1, &CCharTerminalDlg::OnBnClickedButton1)
	ON_BN_CLICKED(IDCLEAR, &CCharTerminalDlg::OnBnClickedClear)
END_MESSAGE_MAP()

BEGIN_EVENTSINK_MAP(CCharTerminalDlg, CDialog)
	ON_EVENT(CCharTerminalDlg, ID_COMMCTRL, 1, OnCommMscomm, VTS_NONE)
END_EVENTSINK_MAP()


/////////////////////////////////////////////////////////////////////////////
// CCharTerminalDlg message handlers

BOOL CCharTerminalDlg::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_send.EnableWindow(FALSE);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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


void CCharTerminalDlg::OnCommMscomm()
{
	UpdateData(TRUE); 
    VARIANT variant_inp;
	COleSafeArray safearray_inp;
	LONG len,k;
	BYTE rxdata[4096]; //设置BYTE数组 An 8-bit integerthat is not signed.
	CString strtemp;
								
		if(m_Com.GetCommEvent()==2)     //事件值为2表示接收缓冲区内有字符
		{
			variant_inp = m_Com.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	
						if(m_hex)
						{
						
							strtemp.Format("%02X ",bt); //将字符以十六进制方式送入临时变量strtemp存放，注意这里加入一个空隔
							m_strReceive = m_strReceive + strtemp;    //加入接收编辑框对应字符串  
						}
						if(m_cha)
						{
							if((bt<30)||(bt>122))
							strtemp.Format("%02X ",bt); //将字符以十六进制方式送入临时变量strtemp存放，注意这里加入一个空隔
							else
							strtemp.Format("%C ",bt);
							m_strReceive = m_strReceive + strtemp;    //加入接收编辑框对应字符串  
						}



			}
		
			m_strReceive = m_strReceive +"\n";
		}
	UpdateData(FALSE);           //更新编辑框内容


}


void CCharTerminalDlg::OnSend1() 
{
	// TODO: Add your control notification handler code here
	//UpdateData(TRUE);

    UpdateData(TRUE);
	CByteArray hexdata;
	int Count=String2Hex(m_strSend ,hexdata);
	char TxData[100];
   // int Count = m_strSend.GetLength();

	for(int i = 0; i < Count; i++)
		//TxData[i] = m_strSend.GetAt(i);
		TxData[i] = hexdata.GetAt(i);

    CByteArray array;     
    array.RemoveAll();
    array.SetSize(Count);

    for(int i=0;i<Count;i++)
	    array.SetAt(i, TxData[i]);

    m_Com.SetOutput(COleVariant(array)); // 发送数据	
	UpdateData(FALSE);

}



void CCharTerminalDlg::OnBnClickedButton1()
{
	UpdateData(TRUE);
	DWORD style=WS_VISIBLE|WS_CHILD;
	if (!m_Com.Create(NULL,style,CRect(0,0,0,0),this,ID_COMMCTRL))
	
	CString setbort;
	switch(m_bort)
	{
	
	case 4: setbort="9600,n,8,1";  break;
	 case 3: setbort="19200,n,8,1";  break;
		case 2: setbort="38400,n,8,1";  break;
			case 1: setbort="57600,n,8,1";  break;
				case 0: setbort="115200,n,8,1";  break;
					

	}

	m_Com.SetCommPort(m_port); //选择COM1
	m_Com.SetInBufferSize(2048); //设置输入缓冲区的大小，Bytes
	m_Com.SetOutBufferSize(1024); //设置输入缓冲区的大小，Bytes

	if(!m_Com.GetPortOpen()) //打开串口   
	m_Com.SetPortOpen(TRUE);
	m_Com.SetInputMode(1); //设置输入方式为二进制方式
	
	m_Com.SetSettings(setbort); //设置波特率等参数
	m_Com.SetRThreshold(1); //为1表示有一个字符引发一个事件　　　　
	m_Com.SetInputLen(0);

	m_connect.EnableWindow(FALSE);  //打开端口后各个按键的状态
	//m_disconnect.EnableWindow(TRUE);
	m_send.EnableWindow(TRUE);
	UpdateData(FALSE);
	
}


int CCharTerminalDlg::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;
}

//这是一个将字符转换为相应的十六进制值的函数
//功能：若是在0-F之间的字符，则转换为相应的十六进制字符，否则返回-1
char CCharTerminalDlg::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);
}

void CCharTerminalDlg::OnBnClickedClear()
{
	// TODO: 在此添加控件通知处理程序代码
	UpdateData(FALSE);
	m_strReceive=" ";
}