lyfz_repos/经典版源码/Others/ado_jpg/one.cpp

// one.cpp : Defines the class behaviors for the application.
//

#include "stdafx.h"
#include "one.h"
#include "oneDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// COneApp

BEGIN_MESSAGE_MAP(COneApp, CWinApp)
	//{{AFX_MSG_MAP(COneApp)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code!
	//}}AFX_MSG
	ON_COMMAND(ID_HELP, CWinApp::OnHelp)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// COneApp construction

COneApp::COneApp()
{
	// TODO: add construction code here,
	// Place all significant initialization in InitInstance
}

/////////////////////////////////////////////////////////////////////////////
// The one and only COneApp object

COneApp theApp;

/////////////////////////////////////////////////////////////////////////////
// COneApp initialization

BOOL COneApp::InitInstance()
{
	AfxEnableControlContainer();
AfxOleInit();//james

//////////////////////james
  HRESULT hr;
  try
  {
  hr = m_pConnection.CreateInstance("ADODB.Connection");///创建Connection对象
  if(SUCCEEDED(hr))
  {
  hr = m_pConnection->Open("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=test.mdb","","",adModeUnknown);///连接数据库
  ///上面一句中连接字串中的Provider是针对ACCESS2000环境的，对于ACCESS97,需要改为:Provider=Microsoft.Jet.OLEDB.3.51;
  }
  }
  catch(_com_error e)///捕捉异常
  {
  CString errormessage;
  errormessage.Format("连接数据库失败!\r\n错误信息:%s",e.ErrorMessage());
  AfxMessageBox(errormessage);///显示错误信息
  }
/////////////////////james
	// Standard initialization
	// If you are not using these features and wish to reduce the size
	//  of your final executable, you should remove from the following
	//  the specific initialization routines you do not need.

#ifdef _AFXDLL
	Enable3dControls();			// Call this when using MFC in a shared DLL
#else
	Enable3dControlsStatic();	// Call this when linking to MFC statically
#endif

	COneDlg dlg;
	m_pMainWnd = &dlg;
	int nResponse = dlg.DoModal();
	if (nResponse == IDOK)
	{
		// TODO: Place code here to handle when the dialog is
		//  dismissed with OK
	}
	else if (nResponse == IDCANCEL)
	{
		// TODO: Place code here to handle when the dialog is
		//  dismissed with Cancel
	}

	// Since the dialog has been closed, return FALSE so that we exit the
	//  application, rather than start the application's message pump.
	return FALSE;
}

int COneApp::ExitInstance() 
{
	// TODO: Add your specialized code here and/or call the base class
	if(m_pConnection->State) /////////james
	m_pConnection->Close(); 
	return CWinApp::ExitInstance();
}