testcommdlg.cpp

基于VC++的GPS串口通信实用程序

// TestCommDlg.cpp : implementation file
//

#include "stdafx.h"
#include "TestComm.h"
#include "TestCommDlg.h"
#include  <math.h>
#include <stdlib.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()

/////////////////////////////////////////////////////////////////////////////
// CTestCommDlg dialog

CTestCommDlg::CTestCommDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CTestCommDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CTestCommDlg)
	m_Recetive = _T("");
	m_weidu = _T("");
	m_jingdu = _T("");
	m_djingdu1 = 0.0;
	m_dweidu = 0.0;
	m_jddegree = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CTestCommDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CTestCommDlg)
	DDX_Control(pDX, IDC_MSCOMM1, m_Comm);
	DDX_Text(pDX, IDC_EDIT_RECV, m_Recetive);
	DDX_Text(pDX, IDC_WEIDU, m_weidu);
	DDX_Text(pDX, IDC_JINGDU, m_jingdu);
	DDX_Text(pDX, IDC_EDIT1_DOUBLE, m_djingdu1);
	DDX_Text(pDX, IDC_EDIT2_WEIDU, m_dweidu);
	DDX_Text(pDX, IDC_EDIT1_jd1, m_jddegree);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CTestCommDlg, CDialog)
	//{{AFX_MSG_MAP(CTestCommDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON_START, OnButtonStart)
	ON_BN_CLICKED(IDC_BUTTON_END, OnButtonEnd)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTestCommDlg message handlers

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

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

void CTestCommDlg::OnButtonStart() 
{
	// TODO: Add your control notification handler code here

     InitComm();
	
//	}
	
}

void CTestCommDlg::OnButtonEnd() 
{
	// TODO: Add your control notification handler code here
       //if(!m_Comm.GetPortOpen())
		 m_Comm.SetPortOpen(FALSE);
}
void CTestCommDlg::InitComm()
{
	//设置串口
	m_Comm.SetCommPort(4);
	//设置数据的读取格式为二进制格式
	m_Comm.SetInputMode(1);
    //设置传输参数
	m_Comm.SetSettings("4800,N,8,1");
	//缓冲区被有一个字符就可以接收
	m_Comm.SetRThreshold(300);
	 // 指定缓冲区的大小
	m_Comm.SetInBufferSize(1024);
	// 指定缓冲区的大小
	m_Comm.SetOutBufferSize(1024);
	 //清空缓冲区
	 m_Comm.SetInBufferCount(0);
	 //打开串口
	 if(!m_Comm.GetPortOpen())
		 m_Comm.SetPortOpen(TRUE);
	  
}

BEGIN_EVENTSINK_MAP(CTestCommDlg, CDialog)
    //{{AFX_EVENTSINK_MAP(CTestCommDlg)
	ON_EVENT(CTestCommDlg, IDC_MSCOMM1, 1 /* OnComm */, OnOnCommMscomm1, VTS_NONE)
	//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()

void CTestCommDlg::OnOnCommMscomm1() 
{
	// TODO: Add your control notification handler code here
	 int nEvent;
     int chlength; 
	 int  position;
	 VARIANT  m_input;	 
	 char *str,*str1,*porginal1,*porginal2,*porginal3,*porginal4,*porginal5,*porginal6;
	 int k,i;
	 CString str2;
	 //CString jingdu,weidu;
	// CString receive,jingdu ,weidu;
	 //int length,length1;
	  nEvent=m_Comm.GetCommEvent();
      switch(nEvent)
	  {
	  //只是对接:
	  case 2:
	      //接收缓冲区的字符数目
		 k=m_Comm.GetInBufferCount();
		// m_Comm.SetOutputLen (3);
		if(k>0)
		{
			 m_input=m_Comm.GetInput();
			 m_Comm.SetInBufferCount(0);
		     str=(char*)(unsigned  char*)m_input.parray->pvData;
             
		 }

		 i=0;
		 str1=str;
		 porginal2=str1;
		 while(i<k)
		 { 
			 i++;
			 str1++;
			 
		 }
		 *str1='\0';
		 str2=(const  char*)str;
		 m_Recetive+=(LPCTSTR)str2; 
		 // m_jingdu=m_Recetive.Mid(15,9);
		 // m_weidu=m_Recetive.Mid(28,10);
	     chlength=m_Recetive.GetLength ();
	    for(i=0; i<chlength;i++)
		 {
			porginal1=porginal2;
		    porginal3=porginal1;
			porginal3++;
			porginal4=porginal3;
			porginal3++;
			porginal5=porginal3;
			porginal3++;
			porginal6=porginal3;
			porginal3++;
            porginal2++;
			if(*porginal1=='G'&&*porginal4=='P'&&*porginal5=='G'&&*porginal6=='G'&&*porginal3=='A')
		   {
		   	position=m_Recetive.Find ( *porginal3);
		     m_jingdu=m_Recetive.Mid(position+13,9);
		     m_weidu=m_Recetive.Mid(position+25,10);
	         //m_dweidu= atof((LPSTR)(LPCTSTR)m_jingdu.GetBuffer(m_jingdu.GetLength())); 
             //CString temp2; 
             //temp2.Format("%if",m_dweidu); 
			m_dweidu=atof(m_weidu);  //可以了就用这种转换方式了
			m_djingdu1=atof(m_jingdu);
			//m_jddegree=m_jingdu.Mid(0,2);
//MessageBox(temp2);		 
 
		

		   	break; 
		   }
		        
		 }
                
	      default:
		  break;
 
	  }       
        UpdateData(FALSE);
       //m_Comm.SetPortOpen(FALSE);              	
}