www.pudn.com > ComputerInfo_demo.zip > MemoryInfoPage.cpp

// Disclaimer and Copyright Information 
// MemoryInfoPage.cpp : Implementation file 
// 
// All rights reserved. 
// 
// Written by Naveen K Kohli (naveenkohli@netzero.net) 
// Version 1.0 
// 
// Distribute freely, except: don't remove my name from the source or 
// documentation (don't take credit for my work), mark your changes (don't 
// get me blamed for your possible bugs), don't alter or remove this 
// notice. 
// No warrantee of any kind, express or implied, is included with this 
// software; use at your own risk, responsibility for damages (if any) to 
// anyone resulting from the use of this software rests entirely with the 
// user. 
// 
// Send bug reports, bug fixes, enhancements, requests, flames, etc. to 
// naveenkohli@netzero.net 
/////////////////////////////////////////////////////////////////////////////// 
 
#include "stdafx.h" 
#include "SystemApplication.h" 
#include "MemoryInfoPage.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// MemoryInfoPage property page 
 
IMPLEMENT_DYNCREATE(MemoryInfoPage, CPropertyPage) 
 
MemoryInfoPage::MemoryInfoPage() : CPropertyPage(MemoryInfoPage::IDD) 
{ 
	//{{AFX_DATA_INIT(MemoryInfoPage) 
	m_lRAMInstalled = 0; 
	m_lAvailableMemory = 0; 
	m_lVirtualMemory = 0; 
	m_lLoad = 0; 
	//}}AFX_DATA_INIT 
} 
 
MemoryInfoPage::~MemoryInfoPage() 
{ 
} 
 
void MemoryInfoPage::DoDataExchange(CDataExchange* pDX) 
{ 
	CPropertyPage::DoDataExchange(pDX); 
	//{{AFX_DATA_MAP(MemoryInfoPage) 
	DDX_Control(pDX, IDC_MEMORY_INFO_LIST, m_ListCtrl); 
	//}}AFX_DATA_MAP 
} 
 
 
BEGIN_MESSAGE_MAP(MemoryInfoPage, CPropertyPage) 
	//{{AFX_MSG_MAP(MemoryInfoPage) 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// MemoryInfoPage message handlers 
 
BOOL MemoryInfoPage::OnInitDialog()  
{ 
	CPropertyPage::OnInitDialog(); 
	 
	if (FAILED (m_pSystemInfo->GetMemoryInformation (&m_lRAMInstalled, &m_lAvailableMemory, 
		&m_lVirtualMemory, &m_lLoad))) { 
		return TRUE; 
	} 
 
	SetListData(); 
	 
	return TRUE;  // return TRUE unless you set the focus to a control 
	              // EXCEPTION: OCX Property Pages should return FALSE 
} 
 
void MemoryInfoPage::SetListData() 
{ 
	CString tmpStr; 
	double var; 
	LV_ITEM item; 
	LV_COLUMN leftCol, rightCol; 
 
	leftCol.mask = LVCF_FMT | LVCF_SUBITEM | LVCF_TEXT | LVCF_WIDTH; 
	leftCol.fmt = LVCFMT_LEFT; 
	leftCol.iSubItem = 0; 
	leftCol.cx = 130; 
	leftCol.pszText = _T ("Parameter"); 
 
	rightCol.mask = LVCF_FMT | LVCF_SUBITEM | LVCF_TEXT | LVCF_WIDTH; 
	rightCol.fmt = LVCFMT_LEFT; 
	rightCol.iSubItem = 1; 
	rightCol.cx = 225; 
	rightCol.pszText = _T ("Value"); 
 
	m_ListCtrl.InsertColumn (0, &leftCol); 
	m_ListCtrl.InsertColumn (1, &rightCol); 
 
	item.mask = LVIF_TEXT; 
	item.iItem = 0; 
	item.iSubItem = 0; 
	item.pszText = _T ("Memory Load"); 
	m_ListCtrl.InsertItem (&item); 
 
	tmpStr.Format ("%d", m_lLoad); 
	m_ListCtrl.SetItemText (0, 1, tmpStr); 
 
	item.iItem = 1; 
	item.pszText = _T ("RAM Installed"); 
	m_ListCtrl.InsertItem (&item); 
 
	var = m_lRAMInstalled / (1024 * 1024); 
	// There is some memory which is reserved by system and is not available. Its around 
	// 0.5 - 0.6 MB. so we can approximate our calculations by adding 1 MB to calculated 
	// value. 
	var ++; 
	tmpStr.Format ("%7.0lf", var); 
	tmpStr.TrimLeft (); 
	tmpStr = _T ("~") + tmpStr + _T (" MB"); 
	m_ListCtrl.SetItemText (1, 1, tmpStr); 
 
	item.iItem = 2; 
	item.pszText = _T ("Memory Available"); 
	m_ListCtrl.InsertItem (&item); 
 
	var = m_lAvailableMemory / (1024 * 1024); 
	tmpStr.Format ("%7.0lf", var); 
	tmpStr.TrimLeft (); 
	tmpStr = _T ("~") + tmpStr + _T (" MB"); 
	m_ListCtrl.SetItemText (2, 1, tmpStr); 
 
	item.iItem = 3; 
	item.pszText = _T ("Total Virtual Memory"); 
	m_ListCtrl.InsertItem (&item); 
 
	var = m_lVirtualMemory / (1024 * 1024); 
	tmpStr.Format ("%7.0lf", var); 
	tmpStr.TrimLeft (); 
	tmpStr = _T ("~") + tmpStr + _T (" MB"); 
	m_ListCtrl.SetItemText (3, 1, tmpStr); 
}