receiveterminaldlg.cpp

PC机端串口接收程序

// ReceiveTerminalDlg.cpp : implementation file
//

#include "stdafx.h"
#include "ReceiveTerminal.h"
#include "ReceiveTerminalDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CReceiveTerminalDlg dialog

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

void CReceiveTerminalDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CReceiveTerminalDlg)
	DDX_Control(pDX, IDC_MSCOMM1, m_Com);
	DDX_Text(pDX, IDC_EDIT_RECEIVE, m_strReceive);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CReceiveTerminalDlg, CDialog)
	//{{AFX_MSG_MAP(CReceiveTerminalDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_CLEAR, OnClear)
	ON_BN_CLICKED(IDC_CLOSE, OnClose)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CReceiveTerminalDlg message handlers

BOOL CReceiveTerminalDlg::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_Com.SetCommPort(1);// 选择端口，1~16代表com1~com16
	m_Com.SetInBufferSize(1024);//设置接收缓冲区大小
	m_Com.SetOutBufferSize(512);//设置发送缓冲区大小

	if(!m_Com.GetPortOpen())
		m_Com.SetPortOpen(TRUE);//打开串口
	m_Com.SetInputMode(1);//设置接收模式，0：文本方式，1：二进制方式，一般用1
	m_Com.SetSettings("2400,N,8,1");//串口传输条件  传输速率，校验位，数据长度，终止位
	m_Com.SetRThreshold(1);//表示有一个字符触发commmscomm消息，就接收，
	m_Com.SetInputLen(0);//从缓冲区读取字符数，0表示全部读取

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

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

BEGIN_EVENTSINK_MAP(CReceiveTerminalDlg, CDialog)
    //{{AFX_EVENTSINK_MAP(CReceiveTerminalDlg)
	ON_EVENT(CReceiveTerminalDlg, IDC_MSCOMM1, 1 /* OnComm */, OnCommMscomm1, VTS_NONE)
	//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()

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

void CReceiveTerminalDlg::OnClose() 
{
	// TODO: Add your control notification handler code here
	m_Com.SetPortOpen(FALSE);
	OnCancel();
}

void CReceiveTerminalDlg::OnCommMscomm1() 
{
	// TODO: Add your control notification handler code here
	VARIANT variant_inp;
	COleSafeArray safearray_inp;
	
	long i;
	int len,nEvent;
	char rxdata[1000];
	CString tmp;

	nEvent=m_Com.GetCommEvent();//得到触发消息的原因

	switch(nEvent)
	{
	case 2://1表示输出触发，2表示输入触发
			variant_inp=m_Com.GetInput();//得到输入缓冲区的数据，只能用VARIANT型变量接收
			safearray_inp=variant_inp;
			len=safearray_inp.GetOneDimSize();
			for (i=0;i<len;i++)
			{
				safearray_inp.GetElement(&i,&rxdata[i]);
			}
			rxdata[i]='\0';
			m_strReceive+=rxdata;
			UpdateData(FALSE);
			break;
	default:
		break;
	}
}