supertimerdlg.cpp

功能强大的计时器,可以实现多种增殖的功能.适用于范围更广的计时场合.

// SuperTimerDlg.cpp : implementation file
//

#include "stdafx.h"
#include "SuperTimer.h"
#include "SuperTimerDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CSuperTimerDlg dialog

CSuperTimerDlg::CSuperTimerDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CSuperTimerDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSuperTimerDlg)
	m_nTime = 0;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CSuperTimerDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSuperTimerDlg)
	DDX_Text(pDX, IDC_TIME, m_nTime);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CSuperTimerDlg, CDialog)
	//{{AFX_MSG_MAP(CSuperTimerDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
	ON_BN_CLICKED(IDC_BUTTON3, OnButton3)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSuperTimerDlg message handlers

BOOL CSuperTimerDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// 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
}

// 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 CSuperTimerDlg::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 CSuperTimerDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CSuperTimerDlg::OnButton1() 
{
	// 获取开始时间
	CTime tmStart = CTime::GetCurrentTime();

	// 开始执行处理操作 
	Sleep(1101);

	// 获取结束时间
	CTime tmEnd = CTime::GetCurrentTime();

	// 计算耗时
	m_nTime = tmEnd.GetSecond() - tmStart.GetSecond();
	UpdateData(FALSE);	
}

void CSuperTimerDlg::OnButton2() 
{
	// 获取开始时间（相对于系统启动的时间）
	DWORD dwStart = GetTickCount();

	// 开始执行处理操作 
	Sleep(1101);

	// 获取结束时间（相对于系统启动的时间）
	DWORD dwStop = GetTickCount();

	// 计算耗时
	m_nTime = dwStop - dwStart;
	UpdateData(FALSE);	
}

void CSuperTimerDlg::OnButton3() 
{
	LARGE_INTEGER litmp;

	// 获得计数器的时钟频率 
	QueryPerformanceFrequency(&litmp); 
	double dfFreq = (double)litmp.QuadPart; 
	
	// 获得初始值 
	QueryPerformanceCounter(&litmp); 
	LONGLONG QPart1 = litmp.QuadPart; 
	
	// 开始执行处理操作 
	Sleep(1101) ; 
	
	// 获得终止值 
	QueryPerformanceCounter(&litmp); 
	LONGLONG QPart2 = litmp.QuadPart; 
	
	// 计算耗时
	double dfMinus = (double)(QPart2 - QPart1); 
	
	// 获得对应的时间值 
	double dTime = dfMinus / dfFreq;
	m_nTime = (int)(dTime * 1000000);
	UpdateData(FALSE);	
}