serialtestdlg.cpp

这是一个简单的串口通讯程序适用于初学者

// SerialTestDlg.cpp : implementation file
//

#include "stdafx.h"
#include "SerialTest.h"
#include "SerialTestDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CSerialTestDlg dialog

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

void CSerialTestDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSerialTestDlg)
	DDX_Control(pDX, IDC_ReceiveList, m_Eidt);
	DDX_Control(pDX, IDC_SendButton, m_Send);
	DDX_LBString(pDX, IDC_ReceiveList, m_Receive);
	DDX_Text(pDX, IDC_SendEdit, m_SendEdit);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CSerialTestDlg, CDialog)
	//{{AFX_MSG_MAP(CSerialTestDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_SendButton, OnSendButton)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSerialTestDlg message handlers

BOOL CSerialTestDlg::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
    InitialCom(&m_ComSend,ID_COMMCTRL1,1);  //初始化串口
	InitialCom(&m_ComReceive,ID_COMMCTRL2,2);

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

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

void CSerialTestDlg::OnSendButton() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	UpdateData(FALSE);
	int count;
	char TxData[100];
    count=m_SendEdit.GetLength();//获得字符串长度
	for(int i=0;i<count;i++)
  TxData[i]=m_SendEdit.GetAt(i);  //将一个个字符从字符串中转存在字符数组中.
	CByteArray array;
	array.RemoveAll();
	array.SetSize(count);
	for(i=0;i<count;i++)    //将字符数组中的字符转存在array中.
		array.SetAt(i,TxData[i]);
	m_ComSend.SetOutput(COleVariant(array));//发送数据.

}


int CSerialTestDlg::InitialCom(CMSComm *m_Com,UINT ID_COMMCTRL,int i)
{	DWORD style=WS_VISIBLE|WS_CHILD;
	if(!m_Com->Create(NULL,style,CRect(0,0,0,0),this,ID_COMMCTRL))
	{TRACE0("Failed to create OLE Communications Control\n");
	return -1;
	}
/*	DWORD style=WS_VISIBLE|WS_CHILD;
	if (!m_Com.Create(NULL,style,CRect(0,0,0,0),this,ID_COMMCTRL))
	{
		TRACE0("Failed to create OLE Communications Control\n");
	    return -1; //fail to create　　
	}*/

    m_Com->SetCommPort(i);
	m_Com->SetInBufferSize(1024);
	m_Com->SetOutBufferSize(512);
	if(!m_Com->GetPortOpen())
	m_Com->SetPortOpen(TRUE);
	m_Com->SetInputMode(1);
	m_Com->SetSettings("9600,n,8,1");
	m_Com->SetRThreshold(1);
	m_Com->SetInputLen(0);
	return 0;
}

BEGIN_EVENTSINK_MAP(CSerialTestDlg, CDialog)
    //{{AFX_EVENTSINK_MAP(CSerialTestDlg)
	ON_EVENT(CSerialTestDlg, ID_COMMCTRL2, 1 /* OnComm */, OnCommReceive, VTS_NONE)
	//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()

void CSerialTestDlg::OnCommReceive() 
{
	// TODO: Add your control notification handler code here
   VARIANT vResponse;
   char *str;
   char *str1;
   int k,nEvent,i;
   nEvent=m_ComReceive.GetCommEvent();
   switch(nEvent)
   {
   case 2:   //接收大于RTHresshold个字符
	   k=m_ComReceive.GetInBufferCount();    //接收到的字符数目.
	   if(k>0)
	   {
		   vResponse=m_ComReceive.GetInput();  //对数据进行其他处理.
		   str=(char*)(unsigned char*) vResponse.parray->pvData;
	   }
	   //接收到字符,MSComm控件发送事件.
	   i=0;
	   str1=str;
	   while(i<k)
	   {
		   i++;
		   str1++;
	   }
	   *str1='\0';  //清除掉不必要的字符.
	   m_Receive=(const char *)str;
	   break;
   case 3: break;  //CTS线状态发生了变化.
   case 4: break;  //DSR线状态发生了变化.
   case 5: break;  //CD线状态发生了变化.
   case 6: break;  //Ring Indiator发生了变化.
   }
   UpdateData(FALSE);
   m_Eidt.Invalidate();
}