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📄 daoqry.cpp

📁 Visual C++ 实践与提高--数据库篇的源代码。很好的东西。欢迎下载。
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// DAOQry.cpp : Defines the class behaviors for the application.
//

#include "stdafx.h"
#include "DAOQry.h"

#include "MainFrm.h"
#include "DAOQryDoc.h"
#include "DAOTreeView.h"

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

BEGIN_MESSAGE_MAP(CDAOQryApp, CWinApp)
	//{{AFX_MSG_MAP(CDAOQryApp)
	ON_COMMAND(ID_APP_ABOUT, OnAppAbout)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code!
	//}}AFX_MSG_MAP
	// Standard file based document commands
	ON_COMMAND(ID_FILE_NEW, CWinApp::OnFileNew)
	ON_COMMAND(ID_FILE_OPEN, CWinApp::OnFileOpen)
	// Standard print setup command
	ON_COMMAND(ID_FILE_PRINT_SETUP, CWinApp::OnFilePrintSetup)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDAOQryApp construction

CDAOQryApp::CDAOQryApp()
{
	m_bShowSystemObjects = FALSE;
	m_bShowWarnings = TRUE;
	m_bOpenODBC = FALSE;
	m_nMaxRecords = 100;
}

/////////////////////////////////////////////////////////////////////////////
// The one and only CDAOQryApp object

CDAOQryApp theApp;

/////////////////////////////////////////////////////////////////////////////
// CDAOQryApp initialization

BOOL CDAOQryApp::InitInstance()
{
	//初始化COM环境
	if(!AfxOleInit())
	{
		AfxMessageBox(_T("Ole Initialization failed"));
		return FALSE;
	}

	// 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

	// Change the registry key under which our settings are stored.
	// TODO: You should modify this string to be something appropriate
	// such as the name of your company or organization.
	// Enable DDE Execute open
	EnableShellOpen();
	SetRegistryKey(_T("Local AppWizard-Generated Applications"));

	LoadStdProfileSettings();  // Load standard INI file options (including MRU)

	// Register the application's document templates.  Document templates
	//  serve as the connection between documents, frame windows and views.

	CSingleDocTemplate* pDocTemplate;
	pDocTemplate = new CSingleDocTemplate(
		IDR_MAINFRAME,
		RUNTIME_CLASS(CDAOQryDoc),
		RUNTIME_CLASS(CMainFrame),       // main SDI frame window
		RUNTIME_CLASS(CDaoTreeView));
	AddDocTemplate(pDocTemplate);

	// Parse command line for standard shell commands, DDE, file open
	CCommandLineInfo cmdInfo;
	ParseCommandLine(cmdInfo);

	// Dispatch commands specified on the command line
	if (!ProcessShellCommand(cmdInfo))
		return FALSE;

	// The one and only window has been initialized, so show and update it.
	m_pMainWnd->ShowWindow(SW_SHOW);
	m_pMainWnd->UpdateWindow();

	//支持拖拽打开文件
	m_pMainWnd->DragAcceptFiles();

	return TRUE;
}


/////////////////////////////////////////////////////////////////////////////
// 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)
		// No message handlers
	//}}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()

// App command to run the dialog
void CDAOQryApp::OnAppAbout()
{
	CAboutDlg aboutDlg;
	aboutDlg.DoModal();
}

/////////////////////////////////////////////////////////////////////////////
// CDAOQryApp message handlers

//显示DAO异常信息
void DisplayDaoException(CDaoException* e)
{
	CString strMsg;
	if (e->m_pErrorInfo!=NULL)
	{
		strMsg.Format(
			_T("%s   (%d)\n\n")
			_T("Would you like to see help?"),
			(LPCTSTR)e->m_pErrorInfo->m_strDescription,
			e->m_pErrorInfo->m_lErrorCode);

		if (AfxMessageBox(strMsg, MB_YESNO) == IDYES)
		{
			WinHelp(GetDesktopWindow(),
					e->m_pErrorInfo->m_strHelpFile,
					HELP_CONTEXT,
					e->m_pErrorInfo->m_lHelpContext);
		}
	}
	else
	{
		strMsg.Format(
			_T("ERROR:CDaoException\n\n")
			_T("SCODE_CODE      =%d\n")
			_T("SCODE_FACILITY  =%d\n")
			_T("SCODE_SEVERITY  =%d\n")
			_T("ResultFromScode =%d\n"),
			SCODE_CODE      (e->m_scode),
			SCODE_FACILITY  (e->m_scode),
			SCODE_SEVERITY  (e->m_scode),
			ResultFromScode (e->m_scode));
		AfxMessageBox(strMsg);
	}
}

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