scommtestadlg.cpp

可以进行16进制和字符型串口数据收发

// SCommTestaDlg.cpp : implementation file
//

#include "stdafx.h"
#include "SCommTesta.h"
#include "SCommTestaDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CSCommTestaDlg dialog

CSCommTestaDlg::CSCommTestaDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CSCommTestaDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSCommTestaDlg)
	m_strRXData = _T("");
	m_strTXData = _T("");
	m_test = _T("");
	m_testa = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CSCommTestaDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSCommTestaDlg)
	DDX_Control(pDX, IDC_CHECK_HEXDISPLAY, m_ctrlHexDisplay);
	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);
//	DDX_Text(pDX, IDC_EDIT1, m_test);
//	DDX_Text(pDX, IDC_EDIT2, m_testa);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CSCommTestaDlg, CDialog)
	//{{AFX_MSG_MAP(CSCommTestaDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
	ON_BN_CLICKED(IDC_BUTTON3, OnButton3)
	ON_BN_CLICKED(IDC_BUTTON_MANUALSEND, OnButtonManualsend)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSCommTestaDlg message handlers

BOOL CSCommTestaDlg::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
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

BEGIN_EVENTSINK_MAP(CSCommTestaDlg, CDialog)
    //{{AFX_EVENTSINK_MAP(CSCommTestaDlg)
	ON_EVENT(CSCommTestaDlg, IDC_MSCOMM1, 1 /* OnComm */, OnComm, VTS_NONE)
	//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()

void CSCommTestaDlg::OnComm() 
{
	// TODO: Add your control notification handler code here3
	m_strRXData = ' ';
	UpdateData(FALSE);

	VARIANT variant_inp;
	COleSafeArray safearray_inp;
	LONG len,k;
	BYTE rxdata[2048];
	CString strtemp;
	if(m_ctrlComm.GetCommEvent()==2)//接收缓冲区内有字符
	{
		variant_inp = m_ctrlComm.GetInput();//读缓冲区
		safearray_inp = variant_inp;//VARIANT类型变量转换为COLOSAFEARRAY类型变量
		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++)
		{
			BYTE bt = *(char*)(rxdata+k);
			if(m_ctrlHexDisplay.GetCheck())
				strtemp.Format("%02x",bt);
			else
				strtemp.Format("%c",bt);
			m_strRXData += strtemp;			
		}
	}
	//m_test ='a';
	UpdateData(FALSE);	
}

void CSCommTestaDlg::OnButton2() 
{
	// TODO: Add your control notification handler code here
	if(m_ctrlComm.GetPortOpen())
		m_ctrlComm.SetPortOpen(FALSE);
	m_ctrlComm.SetCommPort(1);
	if(!m_ctrlComm.GetPortOpen())
		m_ctrlComm.SetPortOpen(TRUE);
	else
		AfxMessageBox("can not open port1");
	m_ctrlComm.SetSettings("9600,n,8,1");
	m_ctrlComm.SetInputMode(1);
	m_ctrlComm.SetRThreshold(1);
	m_ctrlComm.SetInputLen(0);
	m_ctrlComm.GetInput();	
}

void CSCommTestaDlg::OnButton3() 
{
	// TODO: Add your control notification handler code here
	if(m_ctrlComm.GetPortOpen())
	m_ctrlComm.SetPortOpen(FALSE);	
}



void CSCommTestaDlg::OnButtonManualsend() 
{
	// TODO: Add your control notification handler code here
//	UpdataData(TRUE);	

	UpdateData(TRUE);	
	if(m_ctrlHexSend.GetCheck())
	{
		CByteArray hexdata;
		int len = String2Hex(m_strTXData,hexdata);
		m_ctrlComm.SetOutput(COleVariant(hexdata));
	}
	else
		m_ctrlComm.SetOutput(COleVariant(m_strTXData));

}

//DEL int CSCommTestaDlg::String2Hex()
//DEL {
//DEL 
//DEL 	
//DEL }

int CSCommTestaDlg::String2Hex(CString str, CByteArray &senddata)
{
	char 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;

}


char CSCommTestaDlg::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);
}