freoutdlg1.cpp

这个我写的一个计算LC滤波器的程序

// FreOutDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Fileter.h"
#include "FreOutDlg.h"

#include "conio.h"
#include "math.h"

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

/////////////////////////////////////////////////////////////////////////////
// CFreOutDlg dialog
#define PORT_SPARALL 0X378
//#define MAX_NUM 12500
#define MAX_NUM 10100
int FreTimes=10;// The Count Add times per 50Hz
int *AmpData;

DWORD FreOut(LPVOID hWnd);

CFreOutDlg::CFreOutDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CFreOutDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CFreOutDlg)
	m_FreValue = 500;
	//}}AFX_DATA_INIT
	m_CountPS=0;
	bOuting=FALSE;
}


void CFreOutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CFreOutDlg)
	DDX_Text(pDX, IDC_EDIT1, m_FreValue);
	DDV_MinMaxUInt(pDX, m_FreValue, 50, 50000);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CFreOutDlg, CDialog)
	//{{AFX_MSG_MAP(CFreOutDlg)
	ON_BN_CLICKED(IDC_OUT_BUTTON, OnOutButton)
	ON_BN_CLICKED(IDC_STOP_BUTTON, OnStopButton)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CFreOutDlg message handlers
DWORD FreOut(LPVOID hwnd)
{
   int i;
   int Step=FreTimes;
   while(1)
    for(i=0;i<MAX_NUM;i+=Step)
	    _outp(PORT_SPARALL,AmpData[i]);
}

void CFreOutDlg::OnOutButton() 
{
	// TODO: Add your control notification handler code here/
	if(bOuting)
	{
		DWORD ExitCode1;
		GetExitCodeThread(hThread1,&ExitCode1);
		TerminateThread(hThread1,ExitCode1);
		bOuting=FALSE;
	}

	if(!bOuting)
	{
		UpdateData();
		FreTimes=int(m_FreValue/50.0);//Get the times of 50Hz
		bOuting=TRUE;
		hThread1 = CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)FreOut,
			 (LPVOID)(this->m_hWnd),0,&Tid);
// goto  the edit frequence
        ((CDialog *)this)->GotoDlgCtrl(GetDlgItem(IDC_EDIT1));
//		(CWnd *)GetDlgItem(IDC_STOP_BUTTON)->SetFocus();
	}
}

void CFreOutDlg::OnStopButton() 
{
	// TODO: Add your control notification handler code here
	if(bOuting)
	{
		DWORD ExitCode1;
		GetExitCodeThread(hThread1,&ExitCode1);
		TerminateThread(hThread1,ExitCode1);
		bOuting=FALSE;
	}
}

BOOL CFreOutDlg::DestroyWindow() 
{
	// TODO: Add your specialized code here and/or call the base class
	if(bOuting)
	{
		DWORD ExitCode1;
		GetExitCodeThread(hThread1,&ExitCode1);
		TerminateThread(hThread1,ExitCode1);
		bOuting=FALSE;
	}
	delete AmpData;
	
	return CDialog::DestroyWindow();
}

void CFreOutDlg::OnOK() 
{
	// TODO: Add extra validation here
	
	CDialog::OnOK();
}

BOOL CFreOutDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
///////////////////////////////////////////
//generate the data 
    AmpData = new int[MAX_NUM];
	for(int i=0;i<MAX_NUM;i++)
		AmpData[i]=(int)(127+128*cos(2.0*3.14159*i/MAX_NUM));
//////////////////////////////////////////
	
// TODO: Add extra initialization here
//	double Seconds=1;
//	double AllCount=0;
//	clock_t Begin;
//	for(Begin=clock();Begin+Seconds*CLOCKS_PER_SEC > clock();)
//	     AllCount++;
//	m_CountPS=AllCount/Seconds;
	
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}