seriesportdlg.cpp

MFC程序开发参考大全 【明日科技】宋坤 刘锐宁 李伟明 【丛 书 名】 软件工程师典藏 【出 版 社】 人民邮电出版社 本书详细介绍了MFC框架中所有常用类及控件的应用

// SeriesPortDlg.cpp : implementation file
//

#include "stdafx.h"
#include "SeriesPort.h"
#include "SeriesPortDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
//自定义一个消息
const CM_RECEIVE = WM_USER+100;

OVERLAPPED tOverLaped=  {0}; //线程函数使用的OVERLAPPED结构
OVERLAPPED wOverLaped = {0}; //写操作使用的OVERLAPPED结构
OVERLAPPED rOverLaped = {0}; //读操作使用的OVERLAPPED结构
BOOL IsFun = TRUE;           //线程是否运行
BOOL IsStop = FALSE;         //数据是否发送完毕
/////////////////////////////////////////////////////////////////////////////
// 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()

/////////////////////////////////////////////////////////////////////////////
// CSeriesPortDlg dialog

CSeriesPortDlg::CSeriesPortDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CSeriesPortDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSeriesPortDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CSeriesPortDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSeriesPortDlg)
	DDX_Control(pDX, IDC_EDIT1, m_Edit);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CSeriesPortDlg, CDialog)
	//{{AFX_MSG_MAP(CSeriesPortDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_MESSAGE(CM_RECEIVE,OnRecieveData)
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
	ON_BN_CLICKED(IDC_BUTTON3, OnButton3)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSeriesPortDlg message handlers

BOOL CSeriesPortDlg::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
	hCom = CreateFile("COM1",  //打开串口1
				GENERIC_READ | GENERIC_WRITE, //允许读和写操作
				0,  //独占方式
				NULL,
				OPEN_EXISTING, //打开一个存在的串口
				FILE_ATTRIBUTE_NORMAL|FILE_FLAG_OVERLAPPED, //异步方式打开
				NULL
				);
	if(hCom == INVALID_HANDLE_VALUE)
	{
		MessageBox("端口打开失败");
	}
		
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

//线程函数
DWORD ThreadFunction(LPVOID pParam)
{
	DWORD  dwEvtMask ,dwResult;
	tOverLaped.hEvent = CreateEvent(NULL,TRUE,FALSE,NULL);//创建一个事件
	while(IsFun)
	{
		//等待窗口事件
		WaitCommEvent(((CSeriesPortDlg*)AfxGetMainWnd())->hCom,
			&dwEvtMask,&tOverLaped);
		 //如果事件没有信号,延时0.1秒
		dwResult = WaitForSingleObject(tOverLaped.hEvent,100);

		if(dwResult == WAIT_OBJECT_0) //事件对象有信号
		{
			if(dwEvtMask == EV_RXCHAR) //接收到数据
			{
				if(IsStop)//发送停止
				{
					IsStop = FALSE;
					//发送消息,由消息处理函数接收数据
					::PostMessage(AfxGetMainWnd()->m_hWnd, CM_RECEIVE,
						0,(LPARAM)EV_RXCHAR);
				}	
			}	
		}
	}
	return 0;
}

//自定义消息处理函数,用于接收消息		
void CSeriesPortDlg::OnRecieveData(WPARAM wParam, LPARAM lParam)
{

	DWORD res,factbyte;

	memset(DataBuffer,0,1024); //初始化数据缓冲区
	COMSTAT rst;

	ClearCommError(hCom,&res,&rst); //清空串口错误标志,记录当前通信状态

	rOverLaped.hEvent = CreateEvent(NULL,TRUE,FALSE,NULL); //创建一个事件对象
	if (ReadFile(hCom,DataBuffer,rst.cbInQue,&factbyte,&rOverLaped)) //读取数据到缓冲区中
	{
		DataBuffer[rst.cbInQue] = 0;
		IsStop = FALSE;
	}
	else
	{	
		res = WaitForSingleObject(rOverLaped.hEvent,5000);
	}
	IsStop = FALSE;
	int num=0,si=-1;
	char str[2][1024];
	for(int i=0;i<rst.cbInQue;i++)
	{
		if(DataBuffer[i] == '~')
		{
			num++;
			si = i;
			continue;
		}
		str[num][i-si-1] = DataBuffer[i];
	}
	CString Path="F:\\";
	Path += str[0];
	Path = Path.Left(si+3);
	CFile file(_T(Path),CFile::modeCreate|CFile::modeWrite);
	file.Write(str[1],rst.cbInQue-si);
	file.Close();
	MessageBox("发送完成");
}

void CSeriesPortDlg::OnButton1() 
{
	SetupComm(hCom,1024,1024); //设置发送和接收缓冲区大小
	//设置串口信息
	DCB dcb;
	GetCommState(hCom,&dcb);
	dcb.BaudRate = 9600;
	dcb.fBinary = TRUE;
	dcb.fParity = TRUE;
	dcb.ByteSize = 8;
	dcb.Parity = ODDPARITY;
	dcb.StopBits = ONESTOPBIT;
	if(!SetCommState(hCom,&dcb))
	{
		MessageBox("设置失败","提示");
		return;		
	}
	if(!SetCommMask(hCom,EV_RXCHAR | EV_TXEMPTY))
	{
		MessageBox("掩码设置失败","提示");
		return;
	}
	DWORD param;
	hThread = CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)ThreadFunction,
		&param,0,&dwThreadID);
	if (hThread == INVALID_HANDLE_VALUE)
	{
		MessageBox("线程创建失败","提示",64);
		return;
	}
	IsFun = TRUE;
}

void CSeriesPortDlg::OnButton2() 
{
	DWORD res;
	DWORD factdata = 0;
	CString str;
	str = strPath + "~" + strText;
	wOverLaped.hEvent = CreateEvent(NULL,TRUE,FALSE,NULL); //创建一个事件对象
	IsStop = FALSE;
	if (WriteFile(hCom,str,str.GetLength(),&factdata,&wOverLaped)) //开始发送数据
	{
		IsStop = TRUE;
		MessageBox("发送成功");
	}
	else
	{
		res = WaitForSingleObject(wOverLaped.hEvent,5000); //延时5秒,等待数据发送
		if (WAIT_OBJECT_0 == res) //如果事件处于有信号状态,表示发送完成
		{
			IsStop = TRUE;
		}
		else
			IsStop = FALSE;

		Sleep(1000); //延时1秒钟		
	}
}

void CSeriesPortDlg::OnButton3() 
{
	CFileDialog dlg(TRUE,NULL,NULL,OFN_HIDEREADONLY|OFN_OVERWRITEPROMPT,
		"All Files(*.*)|*.*| |",AfxGetMainWnd());
	strText="";
	if(dlg.DoModal() == IDOK)
	{
		strPath=dlg.GetFileName();
	}
	CFile file(strPath,CFile::modeRead);
	char read[1000];
	file.Read(read,1000);
	for(int i=0;i<file.GetLength();i++)
	{
		strText += read[i];
	}
	m_Edit.SetWindowText(strText);
	file.Close();
}