testcpudlg.cpp

用VC++编程实现对CPU主频的检测

// testcpuDlg.cpp : implementation file
//

#include "stdafx.h"
#include "testcpu.h"
#include "testcpuDlg.h"

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

const WM_TIME = WM_USER+100;
DWORD t1,rs1,rs2;
/////////////////////////////////////////////////////////////////////////////
// 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()

/////////////////////////////////////////////////////////////////////////////
// CTestcpuDlg dialog

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

void CTestcpuDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CTestcpuDlg)
	DDX_Text(pDX, IDC_EDIT1, m_freq);
	DDX_Text(pDX, IDC_EDIT2, m_cpuid);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CTestcpuDlg, CDialog)
	//{{AFX_MSG_MAP(CTestcpuDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_WM_TIMER()
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTestcpuDlg message handlers

BOOL CTestcpuDlg::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
	//WORD support = mCpu.wincpuidsupport();
	WORD cpuid = mCpu.wincpuid();
	m_cpuid.Format("Cpuid是：%d",cpuid);
	m_cpuid+=0x0d;	m_cpuid+=0x0a;
	m_cpuid+=0x0d;	m_cpuid+=0x0a;
	m_cpuid+=mCpu.str ;
	UpdateData(FALSE);

	t1 = GetTickCount();
	_asm
	{
		rdtsc
		mov rs2,edx 
		mov rs1,eax
	}
	SetTimer(WM_TIME,1000,0);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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


void CTestcpuDlg::OnOK() 
{
	// TODO: Add extra validation here
}

void CTestcpuDlg::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default	
	DWORD rc1 ;
	DWORD t2 = GetTickCount();
	_asm
	{
		rdtsc
		push eax
		push edx
		sub eax,rs1
		sbb edx,rs2
		pop rs2
		pop rs1
		mov ecx,1000000
		div ecx
		cmp edx,500000h
		jle rr
		inc eax
		rr:mov rc1,eax
	}
	t1=t2-t1;

	float fre = (float)rc1/t1*1000;
	m_freq.Format("Hi,您的CPU主频是%5.0fMHz!",fre);
	UpdateData(FALSE);
	
	t1 = GetTickCount();	
	CDialog::OnTimer(nIDEvent);
}

void CTestcpuDlg::OnCancel() 
{
	// TODO: Add extra cleanup here
	KillTimer(WM_TIME);
	CDialog::OnCancel();
}

void CTestcpuDlg::OnButton1() 
{
	// TODO: Add your control notification handler code here
	CAboutDlg aboutdlg;
	aboutdlg.DoModal();
}