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【C】监控windows系统性能
作者:hubeixugang / 发布于2015/1/4/ 1035
监控windows系统性能示例 windows平台 VS2008

	/*******************************************************************************
	* @file
	* @author def< qq group: 324164944 >
	* @blog http://www.cnblogs.com/itdef/
	* @brief
	/*******************************************************************************/
	#include "stdafx.h"
	#include "MonitorDemo.h"
	#include "MonitorDemoDlg.h"
	
	#ifdef _DEBUG
	#define new DEBUG_NEW
	#endif
	
	#define STRING_CPU_PERCENT _T("CPU 使用率")
	#define STRING_MEMORY_PERCENT _T("内存占用率")
	#define STRING_NET_IO _T("网络IO速度 正式版支持该功能")
	
	// 用于应用程序&ldquo;关于&rdquo;菜单项的 CAboutDlg 对话框
	
	class CAboutDlg : public CDialog
	{
	public:
	 CAboutDlg();
	
	// 对话框数据
	 enum { IDD = IDD_ABOUTBOX };
	
	 protected:
	 virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV 支持
	
	// 实现
	protected:
	 DECLARE_MESSAGE_MAP()
	};
	
	CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
	{
	}
	
	void CAboutDlg::DoDataExchange(CDataExchange* pDX)
	{
	 CDialog::DoDataExchange(pDX);
	}
	
	BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	END_MESSAGE_MAP()
	
	
	// CMonitorDemoDlg 对话框
	
	
	
	
	CMonitorDemoDlg::CMonitorDemoDlg(CWnd* pParent /*=NULL*/)
	 : CDialog(CMonitorDemoDlg::IDD, pParent)
	{
	 m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
	 m_bStartTimer = FALSE ;
	 m_timer_Event_id = NONE_EVENT;
	}
	
	void CMonitorDemoDlg::DoDataExchange(CDataExchange* pDX)
	{
	 CDialog::DoDataExchange(pDX);
	 DDX_Control(pDX, IDC_USER_TREE, m_tree);
	}
	
	BEGIN_MESSAGE_MAP(CMonitorDemoDlg, CDialog)
	 ON_WM_SYSCOMMAND()
	 ON_WM_PAINT()
	 ON_WM_QUERYDRAGICON()
	 //}}AFX_MSG_MAP
	 ON_BN_CLICKED(ID_TIMER_SWITCH, &CMonitorDemoDlg::OnBnClickedTimerSwitch)
	 ON_BN_CLICKED(IDEXIT, &CMonitorDemoDlg::OnBnClickedExit)
	 ON_NOTIFY(TVN_SELCHANGED, IDC_USER_TREE, &CMonitorDemoDlg::OnTvnSelchangedUserTree)
	 ON_WM_TIMER()
	END_MESSAGE_MAP()
	
	
	// CMonitorDemoDlg 消息处理程序
	
	BOOL CMonitorDemoDlg::OnInitDialog()
	{
	 CDialog::OnInitDialog();
	
	 // 将&ldquo;关于...&rdquo;菜单项添加到系统菜单中。
	
	 // IDM_ABOUTBOX 必须在系统命令范围内。
	 ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	 ASSERT(IDM_ABOUTBOX < 0xF000);
	
	 CMenu* pSysMenu = GetSystemMenu(FALSE);
	 if (pSysMenu != NULL)
	 {
	 BOOL bNameValid;
	 CString strAboutMenu;
	 bNameValid = strAboutMenu.LoadString(IDS_ABOUTBOX);
	 ASSERT(bNameValid);
	 if (!strAboutMenu.IsEmpty())
	 {
	 pSysMenu->AppendMenu(MF_SEPARATOR);
	 pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
	 }
	 }
	
	 // 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动
	 // 执行此操作
	 SetIcon(m_hIcon, TRUE); // 设置大图标
	 SetIcon(m_hIcon, FALSE); // 设置小图标
	
	 // TODO: 在此添加额外的初始化代码
	 //================================================
	 // 初始化pic控件
	 InitOScopeCtrl();
	 InitUserTreeControl();
	 InsertPcTitleToUserTreeControl();
	
	 //================================================
	 return TRUE; // 除非将焦点设置到控件，否则返回 TRUE
	}
	
	void CMonitorDemoDlg::InitUserTreeControl()
	{
	 DWORD dwStyle = GetWindowLong(m_tree.m_hWnd,GWL_STYLE);
	 dwStyle |= TVS_HASBUTTONS | TVS_HASLINES | TVS_LINESATROOT;
	 SetWindowLong(m_tree.m_hWnd,GWL_STYLE,dwStyle);
	 m_hRoot = m_tree.InsertItem("USER_LIST");
	}
	
	void CMonitorDemoDlg::InsertPcTitleToUserTreeControl()
	{
	 HTREEITEM hItem_user = m_tree.InsertItem(_T("admin:MyComputer"),0,1,m_hRoot,TVI_FIRST);
	 m_tree.InsertItem(STRING_CPU_PERCENT,0,1,hItem_user);
	 m_tree.InsertItem(STRING_MEMORY_PERCENT,0,1,hItem_user);
	 m_tree.InsertItem(STRING_NET_IO,0,1,hItem_user);
	
	 m_tree.Expand(m_hRoot,TVE_EXPAND);
	 m_tree.Expand(hItem_user,TVE_EXPAND);
	}
	
	void CMonitorDemoDlg::InitOScopeCtrl()
	{
	 CRect rect;
	 GetDlgItem(IDC_PLOT)->GetWindowRect(rect) ;
	 ScreenToClient(rect) ;
	 m_OScopeCtrl.Create(WS_VISIBLE | WS_CHILD, rect, this) ;
	
	 // customize the control
	 m_OScopeCtrl.SetRange(0.0, 100.0, 1) ;
	 m_OScopeCtrl.SetYUnits(" ") ;
	 m_OScopeCtrl.SetXUnits(" ") ;
	 m_OScopeCtrl.SetBackgroundColor(RGB(0, 64, 0)) ;
	 m_OScopeCtrl.SetGridColor(RGB(192, 255, 192)) ;
	 m_OScopeCtrl.SetPlotColor(RGB(255, 255, 255)) ;
	}
	
	void CMonitorDemoDlg::OnSysCommand(UINT nID, LPARAM lParam)
	{
	 if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	 {
	 CAboutDlg dlgAbout;
	 dlgAbout.DoModal();
	 }
	 else
	 {
	 CDialog::OnSysCommand(nID, lParam);
	 }
	}
	
	// 如果向对话框添加最小化按钮，则需要下面的代码
	// 来绘制该图标。对于使用文档/视图模型的 MFC 应用程序，
	// 这将由框架自动完成。
	
	void CMonitorDemoDlg::OnPaint()
	{
	 if (IsIconic())
	 {
	 CPaintDC dc(this); // 用于绘制的设备上下文
	
	 SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);
	
	 // 使图标在工作区矩形中居中
	 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;
	
	 // 绘制图标
	 dc.DrawIcon(x, y, m_hIcon);
	 }
	 else
	 {
	 CDialog::OnPaint();
	 }
	}
	
	//当用户拖动最小化窗口时系统调用此函数取得光标
	//显示。
	HCURSOR CMonitorDemoDlg::OnQueryDragIcon()
	{
	 return static_cast<HCURSOR>(m_hIcon);
	}
	
	
	void CMonitorDemoDlg::OnBnClickedTimerSwitch()
	{
	 // TODO: 在此添加控件通知处理程序代码
	
	
	}
	
	void CMonitorDemoDlg::OnBnClickedExit()
	{
	 // TODO: 在此添加控件通知处理程序代码
	 m_OScopeCtrl.InvalidateCtrl();
	 KillTimer(1);
	 OnCancel();
	}
	
	void CMonitorDemoDlg::OnTvnSelchangedUserTree(NMHDR *pNMHDR, LRESULT *pResult)
	{
	 LPNMTREEVIEW pNMTreeView = reinterpret_cast<LPNMTREEVIEW>(pNMHDR);
	 // TODO: 在此添加控件通知处理程序代码
	 //=======================================
	 *pResult = 0;
	 TVITEM item = pNMTreeView->itemNew;
	 if(item.hItem == m_hRoot)
	 return;
	
	 CString strItem;
	 strItem = m_tree.GetItemText(item.hItem);
	
	 if(!m_bStartTimer)
	 {
	 m_bStartTimer = TRUE;
	 SetTimer(1,1000,NULL);
	 }
	
	 // 根据树形控件选择不同 更改曲线图坐标文字
	 if(strItem.Compare(STRING_CPU_PERCENT) == 0)
	 {
	 CString strItem = m_tree.GetItemText(item.hItem);
	 m_timer_Event_id = CPU_EVENT;
	 m_OScopeCtrl.InvalidateCtrl();
	 m_OScopeCtrl.SetYUnits(strItem);
	 m_OScopeCtrl.SetXUnits("(Windows Timer: 1000 msec)") ;
	 }else if(strItem.Compare(STRING_MEMORY_PERCENT) == 0)
	 {
	 CString strItem = m_tree.GetItemText(item.hItem);
	 m_timer_Event_id = MEMORY_EVENT;
	 m_OScopeCtrl.InvalidateCtrl();
	 m_OScopeCtrl.SetYUnits(strItem) ;
	 m_OScopeCtrl.SetXUnits("(Windows Timer: 1000 msec)") ;
	 }else if(strItem.Compare(STRING_NET_IO) == 0)
	 {
	 CString strItem = m_tree.GetItemText(item.hItem);
	 m_timer_Event_id = NET_IO_EVENT;
	 m_OScopeCtrl.InvalidateCtrl();
	 m_OScopeCtrl.SetYUnits(strItem) ;
	 m_OScopeCtrl.SetXUnits("(Windows Timer: 1000 msec)") ;
	 }
	
	
	}
	
	void CMonitorDemoDlg::OnTimer(UINT_PTR nIDEvent)
	{
	 // TODO: 在此添加消息处理程序代码和/或调用默认值
	 if( CPU_EVENT == m_timer_Event_id)
	 {
	
	 }else if( MEMORY_EVENT == m_timer_Event_id)
	 {
	 MEMORYSTATUSEX statex;
	
	 statex.dwLength = sizeof (statex);
	
	 GlobalMemoryStatusEx (&statex);
	
	 m_OScopeCtrl.AppendPoint(statex.dwMemoryLoad);
	 }
	
	
	 CDialog::OnTimer(nIDEvent);
	}
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