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// CodeCtrlOdbcDlg.cpp : implementation file
//
#include "stdafx.h"
#include "CodeCtrlOdbc.h"
#include "CodeCtrlOdbcDlg.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()
/////////////////////////////////////////////////////////////////////////////
// CCodeCtrlOdbcDlg dialog
CCodeCtrlOdbcDlg::CCodeCtrlOdbcDlg(CWnd* pParent /*=NULL*/)
: CDialog(CCodeCtrlOdbcDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CCodeCtrlOdbcDlg)
m_nID = 0;
m_strName = _T("");
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CCodeCtrlOdbcDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CCodeCtrlOdbcDlg)
DDX_Text(pDX, IDC_ID, m_nID);
DDX_Text(pDX, IDC_NAME, m_strName);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CCodeCtrlOdbcDlg, CDialog)
//{{AFX_MSG_MAP(CCodeCtrlOdbcDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CCodeCtrlOdbcDlg message handlers
BOOL CCodeCtrlOdbcDlg::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
//注册数据源
if(!LoadDbSource("students","F:\\vc百例\\第八章\\students.mdb",""))
{
EndDialog(0);
return FALSE;
}
//初始化环境
::CoInitialize(NULL);
//创建并打开数据库连接对象
_variant_t vFieldValue;
CString strFieldValue;
m_pCon.CreateInstance(__uuidof(Connection));
m_pCon->Open("students","","",NULL);
//创建并打开记录集对象
m_pRs.CreateInstance(__uuidof(Recordset));
m_pRs->Open("select* from table1",m_pCon.GetInterfacePtr(),adOpenDynamic,adLockOptimistic,adCmdText);
if(VARIANT_FALSE == m_pRs->EndOfFile)
{
//获得第一条记录并显示
vFieldValue = m_pRs->GetCollect("id");
strFieldValue = (char*)_bstr_t(vFieldValue);
m_nID = atoi(strFieldValue.GetBuffer(0));;
vFieldValue.Clear();
vFieldValue = m_pRs->GetCollect("name");
strFieldValue = (char*)_bstr_t(vFieldValue);
m_strName = strFieldValue;
vFieldValue.Clear();
}
UpdateData(FALSE);
return TRUE; // return TRUE unless you set the focus to a control
}
void CCodeCtrlOdbcDlg::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 CCodeCtrlOdbcDlg::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 CCodeCtrlOdbcDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
BOOL CCodeCtrlOdbcDlg::LoadDbSource(
CString strSourceName, //数据源名
CString strSourceDb, //数据库存放路径
CString strDescription //数据源描述字符串
)
{
HKEY hKey;
DWORD lDisp;
//注册数据源名
CString strSubKey="SOFTWARE\\ODBC\\ODBC.INI\\"+strSourceName;
RegCreateKeyEx(HKEY_CURRENT_USER,
strSubKey,
0,
NULL,
REG_OPTION_NON_VOLATILE,
KEY_ALL_ACCESS,
NULL,
&hKey,
&lDisp);
//注册ODBC驱动程序
CString value1("C:\\WINNT\\System32\\odbcjt32.dll");
RegSetValueEx(hKey,
"Driver",
0,
REG_SZ,
(const unsigned char *)((LPCTSTR)value1),
strlen((LPCTSTR)value1)+1);
//注册数据库文件
CString value2 = strSourceDb;
RegSetValueEx(hKey,
"DBQ",
0,
REG_SZ,
(const unsigned char *)((LPCTSTR)value2),
strlen((LPCTSTR)value2)+1);
DWORD value3=(DWORD)25;
RegSetValueEx(hKey,
"DriverID",
0,
REG_DWORD,
(const BYTE *)&value3,
sizeof(DWORD));
CString value4("Ms Access");
RegSetValueEx(hKey,
"FIL",
0,
REG_SZ,
(const unsigned char *)((LPCTSTR)value4),
strlen((LPCTSTR)value4)+1);
DWORD value5=(DWORD)0;
RegSetValueEx(hKey,
"SafeTransactions",
0,
REG_DWORD,
(const BYTE *)&value5,
sizeof(DWORD));
CString value6("");
RegSetValueEx(hKey,
"UID",
0,
REG_SZ,
(const unsigned char *)((LPCTSTR)value6),
strlen((LPCTSTR)value6)+1);
return TRUE;
}
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