processdlg.cpp

Visual_C++.NET实用编程百例

// processDlg.cpp : 实现文件
//

#include "stdafx.h"
#include "process.h"
#include "processDlg.h"
#include "TlHelp32.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// 用于应用程序“关于”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()


// CprocessDlg 对话框



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

void CprocessDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	DDX_Control(pDX, IDC_LIST1, m_listC);
}

BEGIN_MESSAGE_MAP(CprocessDlg, CDialog)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()


// CprocessDlg 消息处理程序

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

	// 将\“关于...\”菜单项添加到系统菜单中。

	//初始化列表控件
	m_listC.InsertColumn (0,"映像名称",LVCFMT_LEFT,120,0);
	m_listC.InsertColumn (1,"进程PID",LVCFMT_CENTER,100,1);
	m_listC.InsertColumn (2,"父进程PID",LVCFMT_CENTER,100,2);
	//获取系统中的进程信息
	HANDLE snapShot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0);
	if(snapShot == NULL)
	{
		MessageBox("检测当前进程失败","失败");
		return true;
	}
	SHFILEINFO shSmall;
	int nIndex;
	CString str;
	PROCESSENTRY32 ProInfo;
	ProInfo.dwSize = sizeof(ProInfo);
	BOOL status = Process32First(snapShot,&ProInfo);
	int m_nPro = 0;
	while(status)
	{
		m_nPro++;
		ZeroMemory(&shSmall,sizeof(shSmall));		SHGetFileInfo(ProInfo.szExeFile ,0,&shSmall,sizeof(shSmall),SHGFI_ICON|SHGFI_SMALLICON);
		nIndex = m_listC.InsertItem (m_nPro,ProInfo.szExeFile );
		str.Format ("%08X",ProInfo.th32ProcessID );
		m_listC.SetItemText (nIndex,1,str);
		str.Format ("%08X",ProInfo.th32ParentProcessID );
		m_listC.SetItemText (nIndex,2,str);
		status = Process32Next(snapShot,&ProInfo);
	}

	// 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)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		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
	
	return TRUE;  // 除非设置了控件的焦点，否则返回 TRUE
}

void CprocessDlg::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 CprocessDlg::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 CprocessDlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}