Web-based Data Access Object for Unmanaged Application

// WebDAO.h: interface for the CWebDAO class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_WEBDAO_H__38F3675C_9A57_4CE2_A802_9D13D502C120__INCLUDED_)
#define AFX_WEBDAO_H__38F3675C_9A57_4CE2_A802_9D13D502C120__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#import "WebDAO.tlb" named_guids raw_interfaces_only

class CWebDAO  
{
public:
	int ExecuteNonQuery(CString strSQL);
	CString GetFieldNameByColumnNo(int nColumnNo);
	int GetColumnSize(void);
	int GetRecordCount(void);
	int GetNumberByColumnNo(int nColumnNo);
	CString GetStringByColumnNo(int nColumnNo);
	BOOL MoveNext();
	BOOL Close();
	BOOL GetBlobFieldValue(CString strFieldName, DWORD dwDataSize, CString strSaveFileName);
	BOOL IsEOF();
	BOOL GetFieldValue(CString strFieldName, double &dValue);
	BOOL GetFieldValue(CString strFieldName, float &fValue);
	BOOL GetFieldValue(CString strFieldName, long  &lValue);
	BOOL GetFieldValue(CString strFieldName, int &nValue);
	BOOL GetFieldValue(CString strFieldName, CString &strValue);
	BOOL Open(CString strSQL, BOOL bOnlyTableName = FALSE, BOOL bBlob = FALSE, BOOL bUseClient = FALSE);
	BOOL bCOMInitailzed;
	BOOL Initialize();
	WebDAO::IWebDatabaseAccessObjectPtr m_pDotNetCOMPtr;
	CWebDAO(CString strConnection);
	CWebDAO();
	virtual ~CWebDAO();

protected:
	BOOL GetBlobFieldValue(CString strFieldName, DWORD dwDataSize, char *pData);

};

#endif // !defined(AFX_WEBDAO_H__38F3675C_9A57_4CE2_A802_9D13D502C120__INCLUDED_)