regeditdlg.cpp

一个利用VC++开发环境开发的可以编辑注册表的程序源代码！

// RegeditDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Regedit.h"
#include "RegeditDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// 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()

/////////////////////////////////////////////////////////////////////////////
// CRegeditDlg dialog

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

void CRegeditDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CRegeditDlg)
	DDX_Text(pDX, IDC_COMPANY, m_strCompany);
	DDX_Text(pDX, IDC_OWNER, m_strOwner);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CRegeditDlg, CDialog)
	//{{AFX_MSG_MAP(CRegeditDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_QUERY, OnQuery)
	ON_BN_CLICKED(IDC_MODIFY, OnModify)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CRegeditDlg message handlers

BOOL CRegeditDlg::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
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

void CRegeditDlg::OnQuery() 
{
	HKEY hKEY; //定义有关的 hKEY, 在查询结束时要关闭。
	//打开与路径 data_Set 相关的 hKEY，第一个参数为根键名称，第二个参数表
	//表示要访问的键的位置，第三个参数必须为0，KEY_READ表示以查询的方式。
	LPCTSTR data_Set="Software\\Microsoft\\Windows\\CurrentVersion\\";
	
	//访问注册表，hKEY则保存此函数所打开的键的句柄。
	long ret0=(::RegOpenKeyEx(HKEY_LOCAL_MACHINE,data_Set, 0, KEY_READ, &hKEY));
	if(ret0!=ERROR_SUCCESS) //如果无法打开hKEY，则终止程序的执行
	{
		MessageBox("错误: 无法打开有关的hKEY!");
		return;
	}
	//查询有关的数据 (用户姓名 owner_Get)
	LPBYTE owner_Get=new BYTE[80];
	DWORD type_1=REG_SZ;
	DWORD cbData_1=80;
	//hKEY为刚才RegOpenKeyEx()函数所打开的键的句柄，"RegisteredOwner"。
	//表示要查询的键值名，type_1表示查询数据的类型，owner_Get保存所。
	//查询的数据，cbData_1表示预设置的数据长度。
	long ret1=::RegQueryValueEx(hKEY,"RegisteredOwner", NULL,&type_1,owner_Get,&cbData_1);
	if(ret1!=ERROR_SUCCESS)
	{
		MessageBox("错误: 无法查询有关注册表信息!");
		return;
	}
	//查询有关的数据 (公司名 company_Get)
	LPBYTE company_Get=new BYTE [80];
	DWORD type_2=REG_SZ; DWORD cbData_2=80;
	long ret2=::RegQueryValueEx(hKEY,"RegisteredOrganization",NULL,&type_2,company_Get,&cbData_2);
	if(ret2!=ERROR_SUCCESS)
	{
		MessageBox("错误: 无法查询有关注册表信息!");
		return;
	}
	//将 owner_Get 和 company_Get 转换为 CString 字符串, 以便显示输出。
	m_strOwner=CString(owner_Get);
	m_strCompany=CString(company_Get);
	delete[] owner_Get; delete[] company_Get;
	//程序结束前要关闭已经打开的 hKEY。
	::RegCloseKey(hKEY);
	UpdateData(FALSE);
}
//转换字符串
LPBYTE CRegeditDlg::CString_To_LPBYTE(CString str)
{
	LPBYTE lpb=new BYTE[str.GetLength()+1]; 
	for(int i=0;i<str.GetLength(); i++)
		lpb[i]=str[i];
	lpb[str.GetLength()]=0;
	return lpb;
}
void CRegeditDlg::OnModify() 
{	
	UpdateData(TRUE);
	//通过对话框输入新的用户信息，保存到str_owner和str_company
	//定义有关的 hKEY, 在程序的最后要关闭.
	HKEY hKEY; 
	LPCTSTR data_Set="Software\\Microsoft\\Windows\\CurrentVersion";
	//打开与路径 data_Set 相关的hKEY，KEY_WRITE表示以写的方式打开.
	long ret0=(::RegOpenKeyEx(HKEY_LOCAL_MACHINE, data_Set, 0, KEY_WRITE, &hKEY));
	if(ret0!=ERROR_SUCCESS)
	{
		MessageBox("错误: 无法打开有关的hKEY!");
		return;
	}
	//修改有关数据(用户姓名 owner_Set)，要先将CString型转换为LPBYTE。
	LPBYTE owner_Set=CString_To_LPBYTE(m_strOwner);
	DWORD type_1=REG_SZ;
	DWORD cbData_1=m_strOwner.GetLength()+1; 
	//与RegQureyValueEx()类似，hKEY表示已打开的键的句柄，"RegisteredOwner"
	//表示要访问的键值名，owner_Set表示新的键值，type_1和cbData_1表示新值。
	//的数据类型和数据长度
	long ret1=::RegSetValueEx(hKEY, "RegisteredOwner", NULL,
		type_1,owner_Set,cbData_1);
	if(ret1!=ERROR_SUCCESS)
	{
		MessageBox("错误: 无法修改有关注册表信息!");
		return;
	}
	//修改有关的数据 (公司名 company_Set)
	LPBYTE company_Set=CString_To_LPBYTE(m_strCompany);
	DWORD type_2=REG_SZ; 
	DWORD cbData_2=m_strCompany.GetLength()+1; 
	long ret2=::RegSetValueEx(hKEY, "RegisteredOrganization", NULL,
		type_2,company_Set, cbData_2);
	if(ret2!=ERROR_SUCCESS)
	{
		MessageBox("错误: 无法修改有关注册表信息!");
		return;
	}
	else
	{
		MessageBox("修改注册表成功!");
	}
}