// ***************************************************************************
// Copyright (C) 1991-2002 SQLDev.Net
//
// $BeginHeader$
//
// @file@:              BackupDB.h
// @author@:            Gert E.R. Drapers (GertD@SQLDev.Net)
// @description@:       Example SQL-DMO Backup Database with Event Sinks
// @remarks@:
// @created@:           2002-12-30
// @lastsaved@:         2002-12-30
//     
// update history:
// @version@    @initials@  @updatedate@    @release@   @description@
// 00001        GED         2002-12-30      v1.0.0.0    created
//
// @EndHeader@
// ***************************************************************************
#ifndef _BACKUPDB_H_
#define _BACKUPDB_H_

class CMyBackupSink : public ISQLDMOBackupSink
{
public:
	CMyBackupSink()	{m_cRefs=0;};

	// *** IUnknown methods
	//
	STDMETHOD(QueryInterface) (THIS_ REFIID riid, LPVOID *ppvObj);
	STDMETHOD_(ULONG,AddRef) (THIS)     {return ++m_cRefs;}
	STDMETHOD_(ULONG,Release) (THIS)
	{
		if (1 >= m_cRefs) 
		{
			// delete this;
			//
			return 0;
		}
		return --m_cRefs;
	}
	
	// *** ISQLDMOBackupSink methods
	//
    STDMETHOD(PercentComplete)(THIS_ SQLDMO_LPCSTR Message, long Percent);
    STDMETHOD(NextMedia)(THIS_ SQLDMO_LPCSTR Message);
    STDMETHOD(Complete)(THIS_ SQLDMO_LPCSTR Message);

protected:	// member vars.
	ULONG m_cRefs;
};
#endif // _BACKUPDB_H_