regeditdlg.cpp

visual c++ 实例编程

// 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

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

CRegeditDlg::CRegeditDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CRegeditDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CRegeditDlg)
	m_strOwner = _T("");
	m_strCompany = _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_OWNER, m_strOwner);
	DDX_Text(pDX, IDC_COMPANY, m_strCompany);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CRegeditDlg, CDialog)
	//{{AFX_MSG_MAP(CRegeditDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(ID_QUERY, OnQuery)
	ON_BN_CLICKED(ID_CHANGE, OnChange)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

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

BOOL CRegeditDlg::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 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() 
{
	// TODO: Add your control notification handler code here
	UpdateData(true);
	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
	LPCTSTR data_Set="Software\\Microsoft\\Windows NT\\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,则中止程序的执行
	{
		AfxMessageBox("错误：无法打开有关的hKEY");
		return;
	}

	//查询有关的数据
	LPBYTE owner_Get=new BYTE[80];//定义用户姓名 owner_Get
	DWORD type_1=REG_SZ;//定义数据类型
	DWORD cbData_1=80;//定义数据长度

	long ret1=::RegQueryValueEx(hKEY,"RegisteredOwner",NULL,&type_1,owner_Get,&cbData_1);
	if(ret1!=ERROR_SUCCESS)
	{
		AfxMessageBox("错误：无法查询有关的注册表信息");
		return;
	}

	//查询公司名
	LPBYTE company_Get=new BYTE[80];//定义公司名称 company_Get
	DWORD type_2=REG_SZ;//定义数据类型
	DWORD cbData_2=80;//定义数据长度

	long ret2=::RegQueryValueEx(hKEY,"RegisteredOrganization",NULL,&type_2,company_Get,&cbData_2);
	if(ret2!=ERROR_SUCCESS)
	{
		AfxMessageBox("错误：无法查询有关的注册表信息");
		return;
	}

	//显示信息
	m_strOwner=CString(owner_Get);
	m_strCompany=CString(company_Get);
	delete[] owner_Get;
	delete[] company_Get;

	//程序结束，关闭打开的hKEY
	::RegCloseKey(hKEY);
	UpdateData(false);
}

LPBYTE 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::OnChange() 
{
	// TODO: Add your control notification handler code here
	UpdateData(true);

	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
	LPCTSTR data_Set="Software\\Microsoft\\Windows NT\\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,则中止程序的执行
	{
		AfxMessageBox("错误：无法打开有关的hKEY");
		return;
	}

	//设置有关的数据
	LPBYTE owner_Set=CString_To_LPBYTE(m_strOwner);//定义用户姓名 owner_Set
	DWORD type_1=REG_SZ;//定义数据类型
	DWORD cbData_1=m_strOwner.GetLength()+1;//定义数据长度

	long ret1=::RegSetValueEx(hKEY,"RegisteredOwner",NULL,type_1,owner_Set,cbData_1);
	if(ret1!=ERROR_SUCCESS)
	{
		AfxMessageBox("错误：无法设置有关的注册表信息");
		return;
	}

	//查询公司名
	//CString_To_LPBYTE,请参考下面的函数
	LPBYTE company_Set=CString_To_LPBYTE(m_strCompany);//定义公司名称 company_Set
	DWORD type_2=REG_SZ;//定义数据类型
	DWORD cbData_2=m_strCompany.GetLength()+1;//定义数据长度

	long ret2=::RegSetValueEx(hKEY,"RegisteredOrganization",NULL,type_2,company_Set,cbData_2);
	if(ret2!=ERROR_SUCCESS)
	{
		AfxMessageBox("错误：无法设置有关的注册表信息");
		return;
	}
	else
	{
		AfxMessageBox("注册表修改完成");
	}
	//程序结束，关闭打开的hKEY
	::RegCloseKey(hKEY);
	UpdateData(false);
}