multiportdlg.cpp

一个使用MSComm控件接受串口数据的例子

// MultiPortDlg.cpp : implementation file
//

#include "stdafx.h"
#include "MultiPort.h"
#include "MultiPortDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CMultiPortDlg dialog

CMultiPortDlg::CMultiPortDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CMultiPortDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CMultiPortDlg)
	m_strEditCOM1RXData = _T("");
	m_strEditCOM1TXData = _T("");
	m_strEditCOM2RXData = _T("");
	m_strEditCOM2TXData = _T("");
	m_strEditCOM3RXData = _T("");
	m_strEditCOM3TXData = _T("");
	m_strEditCOM4RXData = _T("");
	m_strEditCOM4TXData = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CMultiPortDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMultiPortDlg)
	DDX_Control(pDX, IDC_MSCOMM_COM1, m_ctlMSCommCOM1);
	DDX_Control(pDX, IDC_MSCOMM_COM3, m_ctlMSCommCOM3);
	DDX_Control(pDX, IDC_MSCOMM_COM4, m_ctlMSCommCOM4);
	DDX_Text(pDX, IDC_EDIT_COM1RXDATA, m_strEditCOM1RXData);
	DDX_Text(pDX, IDC_EDIT_COM1TXDATA, m_strEditCOM1TXData);
	DDX_Text(pDX, IDC_EDIT_COM2RXDATA, m_strEditCOM2RXData);
	DDX_Text(pDX, IDC_EDIT_COM2TXDATA, m_strEditCOM2TXData);
	DDX_Text(pDX, IDC_EDIT_COM3RXDATA, m_strEditCOM3RXData);
	DDX_Text(pDX, IDC_EDIT_COM3TXDATA, m_strEditCOM3TXData);
	DDX_Text(pDX, IDC_EDIT_COM4RXDATA, m_strEditCOM4RXData);
	DDX_Text(pDX, IDC_EDIT_COM4TXDATA, m_strEditCOM4TXData);
	DDX_Control(pDX, IDC_MSCOMM_COM2, m_ctlMSCommCOM2);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CMultiPortDlg, CDialog)
	//{{AFX_MSG_MAP(CMultiPortDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON_COM1SEND, OnButtonCom1send)
	ON_BN_CLICKED(IDC_BUTTON_COM2SEND, OnButtonCom2send)
	ON_BN_CLICKED(IDC_BUTTON_COM3SEND, OnButtonCom3send)
	ON_BN_CLICKED(IDC_BUTTON_COM4SEND, OnButtonCom4send)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMultiPortDlg message handlers

BOOL CMultiPortDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// 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
	
	///////////////////初始化COM1///////////////////
	m_ctlMSCommCOM1.SetCommPort(1);   //选择COM1
	m_ctlMSCommCOM1.SetInputMode(1); //输入方式为二进制方式
	m_ctlMSCommCOM1.SetInBufferSize(1024); //设置输入缓冲区大小
	m_ctlMSCommCOM1.SetOutBufferSize(512); //设置输出缓冲区大小
	//波特率9600，无校验，8个数据位，1个停止位 
	m_ctlMSCommCOM1.SetSettings("9600,n,8,1"); 
	//参数1表示每当串口接收缓冲区中有多于
	//或等于1个字符时将引发一个接收数据的OnComm事件
	m_ctlMSCommCOM1.SetRThreshold(1); 
	if(!m_ctlMSCommCOM1.GetPortOpen())
		m_ctlMSCommCOM1.SetPortOpen(TRUE);//打开串口
	m_ctlMSCommCOM1.SetInputLen(0);  //设置当前接收区数据长度为0
	m_ctlMSCommCOM1.GetInput();    //先预读缓冲区以清除残留数据
    
	
	///////////////////初始化COM2///////////////////
	m_ctlMSCommCOM2.SetCommPort(8);   //选择COM2
	m_ctlMSCommCOM2.SetInputMode(1); //输入方式为二进制方式
	m_ctlMSCommCOM2.SetInBufferSize(1024); 
	m_ctlMSCommCOM2.SetOutBufferSize(512); 
	//波特率9600，无校验，8个数据位，1个停止位 
	m_ctlMSCommCOM2.SetSettings("9600,n,8,1"); 
	m_ctlMSCommCOM2.SetRThreshold(1); 
	if(!m_ctlMSCommCOM2.GetPortOpen())
		m_ctlMSCommCOM2.SetPortOpen(TRUE);//打开串口
	m_ctlMSCommCOM2.SetInputLen(0);  
	m_ctlMSCommCOM2.GetInput();   

	

/*
	///////////////////初始化COM3///////////////////
	m_ctlMSCommCOM3.SetCommPort(3);   //选择COM3
	m_ctlMSCommCOM3.SetInputMode(1); //输入方式为二进制方式
	m_ctlMSCommCOM3.SetInBufferSize(1024); 
	m_ctlMSCommCOM3.SetOutBufferSize(512); 
	//波特率9600，无校验，8个数据位，1个停止位 
	m_ctlMSCommCOM3.SetSettings("9600,n,8,1"); 
	m_ctlMSCommCOM3.SetRThreshold(1); 
	if(!m_ctlMSCommCOM3.GetPortOpen())
		m_ctlMSCommCOM3.SetPortOpen(TRUE);//打开串口
	m_ctlMSCommCOM3.SetInputLen(0);  
	m_ctlMSCommCOM3.GetInput();    
    
	
	///////////////////初始化COM4///////////////////
	m_ctlMSCommCOM4.SetCommPort(4);   //选择COM4
	m_ctlMSCommCOM4.SetInputMode(1); 
	m_ctlMSCommCOM4.SetInBufferSize(1024); 
	m_ctlMSCommCOM4.SetOutBufferSize(512); 
	//波特率9600，无校验，8个数据位，1个停止位 
	m_ctlMSCommCOM4.SetSettings("9600,n,8,1"); 
	m_ctlMSCommCOM4.SetRThreshold(1); 
	if(!m_ctlMSCommCOM4.GetPortOpen())
		m_ctlMSCommCOM4.SetPortOpen(TRUE);//打开串口
	m_ctlMSCommCOM4.SetInputLen(0);  
	m_ctlMSCommCOM4.GetInput();   

*/

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

// 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 CMultiPortDlg::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 CMultiPortDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

BEGIN_EVENTSINK_MAP(CMultiPortDlg, CDialog)
    //{{AFX_EVENTSINK_MAP(CMultiPortDlg)
	ON_EVENT(CMultiPortDlg, IDC_MSCOMM_COM1, 1 /* OnComm */, OnCommCom1, VTS_NONE)
	ON_EVENT(CMultiPortDlg, IDC_MSCOMM_COM2, 1 /* OnComm */, OnCommCom2, VTS_NONE)
	ON_EVENT(CMultiPortDlg, IDC_MSCOMM_COM3, 1 /* OnComm */, OnCommCom3, VTS_NONE)
	ON_EVENT(CMultiPortDlg, IDC_MSCOMM_COM4, 1 /* OnComm */, OnCommCom4, VTS_NONE)
	//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()

void CMultiPortDlg::OnCommCom1() 
{
	// TODO: Add your control notification handler code here
	VARIANT variant_inp;
	COleSafeArray safearray_inp;
	LONG len,k;
	BYTE rxdata[2048]; 
	CString strtemp;
	if(m_ctlMSCommCOM1.GetCommEvent()==2)  
	{
		variant_inp=m_ctlMSCommCOM1.GetInput();  //读缓冲区
		safearray_inp=variant_inp;
		len=safearray_inp.GetOneDimSize();
		for(k=0;k<len;k++)
			safearray_inp.GetElement(&k,rxdata+k);
		for(k=0;k<len;k++)
		{
			BYTE bt=*(char*)(rxdata+k); 
			strtemp.Format("%c",bt);
			m_strEditCOM1RXData+=strtemp;
		}
	}
	UpdateData(FALSE);
}

void CMultiPortDlg::OnCommCom2() 
{
	// TODO: Add your control notification handler code here
	VARIANT variant_inp;
	COleSafeArray safearray_inp;
	LONG len,k;
	BYTE rxdata[2048]; 
	CString strtemp;
	if(m_ctlMSCommCOM2.GetCommEvent()==2)  
	{
		variant_inp=m_ctlMSCommCOM2.GetInput();  //读缓冲区
		safearray_inp=variant_inp;
		len=safearray_inp.GetOneDimSize();
		for(k=0;k<len;k++)
			safearray_inp.GetElement(&k,rxdata+k);
		for(k=0;k<len;k++)
		{
			BYTE bt=*(char*)(rxdata+k); 
			strtemp.Format("%c",bt);
			m_strEditCOM2RXData+=strtemp;
		}
	}
	UpdateData(FALSE);	
}

void CMultiPortDlg::OnCommCom3() 
{
	// TODO: Add your control notification handler code here
	VARIANT variant_inp;
	COleSafeArray safearray_inp;
	LONG len,k;
	BYTE rxdata[2048]; 
	CString strtemp;
	if(m_ctlMSCommCOM3.GetCommEvent()==2)  
	{
		variant_inp=m_ctlMSCommCOM3.GetInput();  //读缓冲区
		safearray_inp=variant_inp;
		len=safearray_inp.GetOneDimSize();
		for(k=0;k<len;k++)
			safearray_inp.GetElement(&k,rxdata+k);
		for(k=0;k<len;k++)
		{
			BYTE bt=*(char*)(rxdata+k); 
			strtemp.Format("%c",bt);
			m_strEditCOM3RXData+=strtemp;
		}
	}
	UpdateData(FALSE);	
}

void CMultiPortDlg::OnCommCom4() 
{
	// TODO: Add your control notification handler code here
	VARIANT variant_inp;
	COleSafeArray safearray_inp;
	LONG len,k;
	BYTE rxdata[2048]; 
	CString strtemp;
	if(m_ctlMSCommCOM4.GetCommEvent()==2)  
	{
		variant_inp=m_ctlMSCommCOM4.GetInput(); 
		safearray_inp=variant_inp;
		len=safearray_inp.GetOneDimSize();
		for(k=0;k<len;k++)
			safearray_inp.GetElement(&k,rxdata+k);
		for(k=0;k<len;k++)
		{
			BYTE bt=*(char*)(rxdata+k); 
			strtemp.Format("%c",bt);
			m_strEditCOM4RXData+=strtemp;
		}
	}
	UpdateData(FALSE);	
}



/////////////单击发送按钮/////////////////////////////////

void CMultiPortDlg::OnButtonCom1send() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	m_ctlMSCommCOM1.SetOutput(COleVariant(m_strEditCOM1TXData));
}

void CMultiPortDlg::OnButtonCom2send() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	m_ctlMSCommCOM2.SetOutput(COleVariant(m_strEditCOM2TXData));	
}

void CMultiPortDlg::OnButtonCom3send() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	m_ctlMSCommCOM3.SetOutput(COleVariant(m_strEditCOM3TXData));	
}

void CMultiPortDlg::OnButtonCom4send() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	m_ctlMSCommCOM4.SetOutput(COleVariant(m_strEditCOM4TXData));	
}