adddbdlg.cpp

ODBC的添加

// adddbDlg.cpp : implementation file
//

#include "stdafx.h"
#include "adddb.h"
#include "adddbDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CAdddbDlg dialog

CAdddbDlg::CAdddbDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CAdddbDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CAdddbDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CAdddbDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAdddbDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAdddbDlg, CDialog)
	//{{AFX_MSG_MAP(CAdddbDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CAdddbDlg message handlers

BOOL CAdddbDlg::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 CAdddbDlg::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 CAdddbDlg::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 CAdddbDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

BOOL CAdddbDlg::LoadDbSource(CString strSourceName, CString strSourceDb, CString strDescription)
{
	//存放打开的注册表键
	HKEY hKey;
	DWORD dw;
	
	//存放注册表API函数执行的返回值
	LONG lReturn;
	
	//存放要打开的子键
	CString strSubKey;
	
	//检测是否安装了MS Access ODBC driver:odbcjt32.dll
	//获得 Windows系统目录
	char sysDir[MAX_PATH];
	char drvName[]="\\odbcjt32.dll";
	::GetSystemDirectory(sysDir, MAX_PATH);
	strcat(sysDir,drvName);
	CFileFind findFile;
	if(!findFile.FindFile(sysDir))
	{
		AfxMessageBox("您的计算机系统中没有安装MS Access的ODBC驱动程序odbcjt32.dll,您将无法加载该类数据源。" ,MB_OK | MB_ICONSTOP);
		return false;
	}
	
	strSubKey="SOFTWARE\\ODBC\\ODBC.INI\\" + strSourceName;
	//创建 ODBC数据源在注册表中的子键
	lReturn=::RegCreateKeyEx(HKEY_LOCAL_MACHINE, (LPCTSTR)strSubKey, 0, NULL, REG_OPTION_NON_VOLATILE,KEY_WRITE,NULL,&hKey,&dw);
	if(lReturn != ERROR_SUCCESS)
		return false;
	
	//设置数据源的各项参数
	CString strDbq = strSourceDb;
	CString strDriver = sysDir;
	DWORD dwDriverId = 25;
	CString strFil = "MS Access;";
	CString strPwd = strSourceName;
	DWORD dwSafeTransactions = 0;
	CString strUid = strSourceName;
	::RegSetValueEx(hKey, "DBQ", 0L, REG_SZ, (CONST BYTE*)((LPCTSTR)strDbq), strDbq.GetLength());
	::RegSetValueEx(hKey, "Description", 0L, REG_SZ, (CONST BYTE*)((LPCTSTR)strDescription), strDescription.GetLength());
	::RegSetValueEx(hKey, "Driver", 0L, REG_SZ, (CONST BYTE*)((LPCTSTR)strDriver), strDriver.GetLength());
	::RegSetValueEx(hKey, "DriverId", 0L, REG_DWORD, (CONST BYTE*)(&dwDriverId), sizeof(dw));
	::RegSetValueEx(hKey, "FIL", 0L, REG_SZ, (CONST BYTE*)((LPCTSTR)strFil),strFil .GetLength ());
	::RegSetValueEx(hKey, "PWD", 0L, REG_SZ, (CONST BYTE*)((LPCTSTR)strPwd),strPwd.GetLength ());
	::RegSetValueEx(hKey, "SafeTransactions", 0L, REG_DWORD, (CONST BYTE*)(&dwSafeTransactions), sizeof(dw));
	::RegSetValueEx(hKey, "UID", 0L, REG_SZ, (CONST BYTE*)((LPCTSTR)strUid),strUid.GetLength());
	::RegCloseKey(hKey);
	
	//创建 ODBC数据源的Jet子键
	strSubKey += "\\Engines\\Jet";
	lReturn=::RegCreateKeyEx(HKEY_LOCAL_MACHINE, (LPCTSTR)strSubKey, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hKey, &dw);
	if(lReturn != ERROR_SUCCESS)
		return false;
	
	//设置该子键下的各项参数
	CString strImplict="";
	CString strUserCommit="Yes";
	DWORD dwPageTimeout=5;
	DWORD dwThreads=3;
	DWORD dwMaxBufferSize=2048;
	::RegSetValueEx(hKey, "ImplicitCommitSync", 0L, REG_SZ, (CONST BYTE*)((LPCTSTR)strImplict), strImplict.GetLength()+1);
	::RegSetValueEx(hKey, "MaxBufferSize", 0L, REG_DWORD, (CONST BYTE*)(&dwMaxBufferSize), sizeof(dw));
	::RegSetValueEx(hKey, "PageTimeout", 0L, REG_DWORD, (CONST BYTE*)(&dwPageTimeout), sizeof(dw));
	::RegSetValueEx(hKey, "Threads", 0L, REG_DWORD, (CONST BYTE*)(&dwThreads), sizeof(dw));
	::RegSetValueEx(hKey, "UserCommitSync", 0L, REG_SZ, (CONST BYTE*)((LPCTSTR)strUserCommit), strUserCommit.GetLength());
	::RegCloseKey(hKey);
	
	//设置ODBC数据库引擎名称
	lReturn=::RegOpenKeyEx(HKEY_LOCAL_MACHINE, "SOFTWARE\\ODBC\\ODBC.INI\\ODBC Data Sources", 0L, KEY_WRITE, &hKey);
	if(lReturn != ERROR_SUCCESS)
		return false;
	CString strDbType="Microsoft Access Driver (*.mdb)";
	::RegSetValueEx(hKey, strSourceName, 0L, REG_SZ, (CONST BYTE*)((LPCTSTR)strDbType), strDbType.GetLength());
	
	return true;
}

void CAdddbDlg::OnButton2() 
{
	// TODO: Add your control notification handler code here
	if (SQLConfigDataSource(NULL, ODBC_ADD_SYS_DSN, "Microsoft Access Driver (*.mdb)", "DSN=AddDB2\0DBQ=D:\\abc.mdb\0Description=测试增加数据源2"))
		MessageBox("成功！去打开注册表看一下吧！！");
	else
		MessageBox("失败！不会吧！文章再看一编吧！");
}

void CAdddbDlg::OnButton1() 
{
	// TODO: Add your control notification handler code here
	if (LoadDbSource("AddDB1", "D:\\abc.mdb", "测试增加数据源1"))
		MessageBox("成功！去打开注册表看一下吧！！");
	else
		MessageBox("失败！不会吧！文章再看一编吧！");
}