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A minimal footprint performance monitor using Windows messaging

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24 Feb 2008CPOL3 min read 24.4K   153   13  
In an unmanaged environment, using Windows performance monitors may prove challenging. This article propose an alternative which is both easy and efficient.
// CPPDlg.cpp : implementation file
//

#include "stdafx.h"
#include "CPP.h"
#include "CPPDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CCPPDlg dialog




CCPPDlg::CCPPDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CCPPDlg::IDD, pParent)
{
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CCPPDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CCPPDlg, CDialog)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
	ON_BN_CLICKED(IDOK, &CCPPDlg::OnBnClickedOk)
	ON_BN_CLICKED(IDD_CPP_DIALOG, &CCPPDlg::OnBnClickedCppDialog)
	ON_BN_CLICKED(IDD_CPP_DIALOG2, &CCPPDlg::OnBnClickedCppDialog2)
	ON_BN_CLICKED(IDD_CPP_DIALOG3, &CCPPDlg::OnBnClickedCppDialog3)
END_MESSAGE_MAP()


// CCPPDlg message handlers

BOOL CCPPDlg::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 CCPPDlg::OnPaint()
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, reinterpret_cast<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 function to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CCPPDlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}


void CCPPDlg::OnBnClickedOk()
{
	// TODO: Add your control notification handler code here
	OnOK();
}

void CCPPDlg::OnBnClickedCppDialog()
{
    LogPerformance(L"CPPPERF1", 1, rand() * 1000);
}

void CCPPDlg::OnBnClickedCppDialog2()
{	
    LogPerformance(L"CPPPERF2", 2, rand() * 2000);
}

void CCPPDlg::LogPerformance(LPCWSTR bsMeterName, int iResult1, int iResult2)
{
	int iMessageID = RegisterWindowMessage(bsMeterName);
	PostMessageA(HWND_BROADCAST, iMessageID, iResult1, iResult2);
}


void CCPPDlg::OnBnClickedCppDialog3()
{
	// TODO: Add your control notification handler code here
	OnOK();
}

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


Written By
Architect
United States United States
Technologist & Executive.

Specializes in .NET, COM and the gray material between them. Intimately familiar with most MS technologies.

Developing software for a living for the last 10 years, focusing on web based enterprise software as a service for the last 8.

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