www.pudn.com > QTADO_src.zip > ADOConnectionEvents.h

// ADOConnectionEvents.h : CADOConnectionEvents 
// 
///////////////////////////////////////////////////////////////////////////// 
 
#if !defined(AFX_ADOCONNECTIONEVENTS_H__281392F0_A02D_11D3_A8CD_00C04F595ED0__INCLUDED_) 
#define AFX_ADOCONNECTIONEVENTS__281392F0_A02D_11D3_A8CD_00C04F595ED0__INCLUDED_ 
 
#if _MSC_VER > 1000 
#pragma once 
#endif // _MSC_VER > 1000 
 
#include  
 
///////////////////////////////////////////////////////////////////////////// 
// CADOConnectionEvents 
 
class CADOConnectionEvents : public ConnectionEventsVt 
{ 
public : 
	ULONG m_ulRefCount; 
	CADOConnectionEvents():m_ulRefCount(0){} 
	 
	STDMETHOD(QueryInterface)(REFIID iid, LPVOID* ppvObject) 
	{ 
		if(IsEqualIID(__uuidof(IUnknown), iid) ||  
			IsEqualIID(__uuidof(ConnectionEventsVt), iid))  
		{ 
			*ppvObject = this; 
			AddRef(); 
			return S_OK; 
		} 
		else  
			return E_NOINTERFACE; 
	} 
	 
	STDMETHOD_(ULONG, AddRef)() 
	{ 
		return m_ulRefCount++; 
	} 
	 
	STDMETHOD_(ULONG, Release)() 
	{ 
		if (--m_ulRefCount == 0) 
		{ 
			delete this; 
			return 0; 
		} 
		else  
			return m_ulRefCount; 
	} 
		 
	STDMETHOD(InfoMessage)(  
		ADOError* pError, 
		EventStatusEnum* adStatus, 
		_ADOConnection* pConnection) 
	{ 
		*adStatus = adStatusUnwantedEvent;  
		return S_OK; 
	} 
		 
	STDMETHOD(BeginTransComplete)(  
		LONG TransactionLevel, 
		ADOError* pError, 
		EventStatusEnum* adStatus, 
		_ADOConnection* pConnection) 
	{ 
		*adStatus = adStatusUnwantedEvent;  
		return S_OK; 
	} 
	 
	STDMETHOD(CommitTransComplete)(  
		ADOError* pError, 
		EventStatusEnum* adStatus, 
		_ADOConnection* pConnection) 
	{ 
		*adStatus = adStatusUnwantedEvent;  
		return S_OK; 
	} 
	 
    STDMETHOD(RollbackTransComplete)(  
		ADOError* pError, 
		EventStatusEnum* adStatus, 
		_ADOConnection* pConnection) 
	{ 
		*adStatus = adStatusUnwantedEvent;  
		return S_OK; 
	} 
		 
    STDMETHOD(WillExecute)(  
		BSTR* Source, 
		CursorTypeEnum* CursorType, 
		LockTypeEnum* LockType, 
		long* Options, 
		EventStatusEnum* adStatus, 
		_ADOCommand* pCommand, 
		_ADORecordset* pRecordset, 
		_ADOConnection* pConnection) 
	{ 
		*adStatus = adStatusUnwantedEvent;  
		return S_OK; 
    }    
	 
	STDMETHOD(ExecuteComplete)(  
		LONG RecordsAffected, 
		ADOError* pError, 
		EventStatusEnum* adStatus, 
		_ADOCommand* pCommand, 
		_ADORecordset* pRecordset, 
		_ADOConnection* pConnection) 
	{ 
		*adStatus = adStatusUnwantedEvent;  
		return S_OK; 
	} 
	 
	STDMETHOD(WillConnect)(  
		BSTR* ConnectionString, 
		BSTR* UserID, 
		BSTR* Password, 
		long* Options, 
		EventStatusEnum* adStatus, 
		_ADOConnection* pConnection)  
	{ 
		*adStatus = adStatusUnwantedEvent;  
		return S_OK; 
	} 
		 
	STDMETHOD(ConnectComplete)(  
		ADOError* pError, 
		EventStatusEnum* adStatus, 
		_ADOConnection* pConnection) 
	{ 
		*adStatus = adStatusUnwantedEvent;  
		return S_OK; 
	} 
		 
    STDMETHOD(Disconnect)(  
		EventStatusEnum* adStatus, 
		_ADOConnection* pConnection) 
	{ 
		*adStatus = adStatusUnwantedEvent;  
		return S_OK; 
	} 
}; 
 
///////////////////////////////////////////////////////////////////////////// 
 
#endif // !defined(AFX_ADOCONNECTIONEVENTS__281392F0_A02D_11D3_A8CD_00C04F595ED0__INCLUDED_)