serial portdlg.cpp

VC实现单线程的串口通信程序

// serial portDlg.cpp : implementation file
//

#include "stdafx.h"
#include "serial port.h"
#include "serial portDlg.h"
#include "iostream.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()

/////////////////////////////////////////////////////////////////////////////
// CSerialportDlg dialog

CSerialportDlg::CSerialportDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CSerialportDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSerialportDlg)
	m_Receive = _T("");
	m_Send = _T("");
	m_State = _T("");
	m_Periods = 0;
	m_bcheck = FALSE;
	m_Port=0;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CSerialportDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSerialportDlg)
	DDX_Control(pDX, IDC_COMBOLIST2, m_Comb2);
	DDX_Control(pDX, IDC_COMBOLIST, m_Comb);
	DDX_Control(pDX, IDC_MSCOMM, m_Comm);
	DDX_Text(pDX, IDC_RECEIVEDATA, m_Receive);
	DDX_Text(pDX, IDC_SENDDATA, m_Send);
	DDX_Text(pDX, IDC_SerialStateEdit, m_State);
	DDX_Text(pDX, IDC_Time, m_Periods);
	DDX_Check(pDX, IDC_AutoSend, m_bcheck);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CSerialportDlg, CDialog)
	//{{AFX_MSG_MAP(CSerialportDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_CBN_SELCHANGE(IDC_COMBOLIST, OnSelchangeCombolist)
	ON_BN_CLICKED(IDC_OPENPORT, OnOpenport)
	ON_BN_CLICKED(IDC_SEND, OnSend)
	ON_WM_ERASEBKGND()
	ON_BN_CLICKED(IDC_Quit, OnQuit)
	ON_BN_CLICKED(IDC_INFORMATION, OnInformation)
	ON_CBN_SELCHANGE(IDC_COMBOLIST2, OnSelchangeCombolist2)
	ON_BN_CLICKED(IDC_ClearRe, OnClearRe)
	ON_BN_CLICKED(IDC_ClearSend, OnClearSend)
	ON_WM_CTLCOLOR()
	ON_BN_CLICKED(IDC_AutoSend, OnAutoSend)
	ON_WM_TIMER()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSerialportDlg message handlers

BOOL CSerialportDlg::OnInitDialog()
{
	CDialog::OnInitDialog();
    strcpy(PortNum1,"COM1");
	strcpy(PortNum2,"COM2");
    strcpy(Rb1,"4800");
	strcpy(Rb2,"9600");
	this->m_Comb.AddString((LPCTSTR)PortNum1);
	this->m_Comb.AddString((LPCTSTR)PortNum2);
    this->m_Comb2.AddString((LPCTSTR)Rb1);
	this->m_Comb2.AddString((LPCTSTR)Rb2);

	
	this->m_Comb.SetCurSel(0);
	this->m_Comb2.SetCurSel(0);
	// 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
	m_State="关 闭";
		
	UpdateData(FALSE);
    GetDlgItem(IDC_AutoSend)->EnableWindow(0);
    GetDlgItem(IDC_Time)->EnableWindow(0);
	m_bcheck=FALSE;
	m_Periods=1000;
	UpdateData(FALSE);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

void CSerialportDlg::InitComm()
{ 

  m_Comm.SetCommPort(m_Port+1);//设置串口  设置或者返回通信端口号。。。一般默认是1,就是打开串口1 端口号的范围是1-16
  m_Comm.SetInputMode(1);// 设置数据读取方式 是2进制
  switch(m_Speed)
  {
    case 9600: m_Comm.SetSettings("9600,n,8,1");break;
    case 4800: m_Comm.SetSettings("4800,n,8,1");break;
	default: break;
		
    
  }
   
  
  
	  
  
  

  //  9600是数据传输速率 ,	N是奇偶校验,8是数据位数,1 是停止位
  m_Comm.SetRThreshold(1);//缓冲区 一个字符就可以进行 接受
  m_Comm.SetInBufferSize(1024); // 接受缓冲区大小 
  m_Comm.SetOutBufferSize(1024); // 指定 发送缓冲区 的 大小 ..
  m_Comm.SetInBufferCount(0); // 清空 接受缓冲区的 
  if (!m_Comm.GetPortOpen())
  {
	  m_Comm.SetPortOpen(TRUE);
  }
}

// 下面这个 函数 是组合框 选择了 某一个选项 的相应函数   

void CSerialportDlg::OnSelchangeCombolist() // 当在对话框 中 选择下拉列表的端口的时候 ,会激发这个消息 
{
	CString m_str;  // 中介 
	GetDlgItemText(IDC_COMBOLIST,m_str);  //得 对话框中某一个控件的文本内容 , 通过 ID号确定哪个控件 , 放在 临时字符串类 变量中 ..
	m_Port=atoi(LPCTSTR(m_str))-1;           //LPCTSTR 是 组合框条框的 数值类型
	                                   // 得到了 串口号  
}

void CSerialportDlg::OnOpenport()    //"打开串口" 按钮的 相应函数   
{
 BOOL bState=m_Comm.GetPortOpen();
 if (bState==FALSE)
 {
   InitComm();
 GetDlgItem(IDC_OPENPORT)->SetWindowText("关闭串口");
m_State="打 开";
UpdateData(FALSE);
GetDlgItem(IDC_AutoSend)->EnableWindow(1);
 }
else 
{	SetTimer(1,INFINITE,NULL);
m_bcheck=FALSE;
	GetDlgItem(IDC_AutoSend)->EnableWindow(0);
GetDlgItem(IDC_Time)->EnableWindow(0);
	
	m_Comm.SetPortOpen(0); 
   GetDlgItem(IDC_OPENPORT)->SetWindowText("打开串口");
   m_State="关 闭";
   UpdateData(FALSE);

}

// GetDlgItem(IDC_OPENPORT)->SetWindowText(bState? "关闭串口" : "打开串口");
	
}

/*void CSerialportDlg::OnClostport()   //"关闭串口"的按钮  相应函数 
{
	if (m_Comm.GetPortOpen())
	{
		m_Comm.SetPortOpen(0);   // 作一个 关闭的 动作 ...
	}
	
}*/

void CSerialportDlg::OnSend()   // "发送按钮"的相应函数 
{
  UpdateData(TRUE);  // 把发送EDIT控件 中的 文本数据 放在了 CString 类型 的m_send  中  
  int Count=m_Send.GetLength(); // 看看这次发送的数据 有多长 ....
  CByteArray m_Array;   //字节类, 
  m_Array.RemoveAll();
  m_Array.SetSize(Count);
  for (int i=0;i<Count;i++)
  
     m_Array.SetAt(i,m_Send[i]);
     
  m_Comm.SetOutput(COleVariant (m_Array)); //发送 处理