You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
63 lines
1.9 KiB
63 lines
1.9 KiB
//---------------------------------------------------------------------------
|
|
// CMSR2C.h : CVDCursorFromRowset header file
|
|
//
|
|
// Copyright (c) 1996 Microsoft Corporation, All Rights Reserved
|
|
// Developed by Sheridan Software Systems, Inc.
|
|
//---------------------------------------------------------------------------
|
|
|
|
#ifndef _CMSR2C_H_
|
|
#define _CMSR2C_H_
|
|
|
|
class CVDCursorFromRowset : public ICursorFromRowset,
|
|
public ICursorFromRowPosition
|
|
{
|
|
public:
|
|
static HRESULT CreateInstance(LPUNKNOWN pUnkOuter, REFIID riid, LPVOID * ppvObj);
|
|
|
|
protected:
|
|
// construction/destruction
|
|
CVDCursorFromRowset(LPUNKNOWN pUnkOuter);
|
|
~CVDCursorFromRowset();
|
|
|
|
// data members
|
|
LPUNKNOWN m_pUnkOuter; // pointer to controlling unknown
|
|
|
|
public:
|
|
// IUnknown methods
|
|
STDMETHOD(QueryInterface)(THIS_ REFIID riid, LPVOID FAR *ppvObj);
|
|
STDMETHOD_(ULONG,AddRef)(THIS);
|
|
STDMETHOD_(ULONG,Release)(THIS);
|
|
|
|
// ICursorFromRowset method
|
|
STDMETHOD(GetCursor)(THIS_ IRowset *pRowset, ICursor **ppCursor, LCID lcid);
|
|
|
|
// ICursorFromRowPosition method
|
|
STDMETHOD(GetCursor)(THIS_ IRowPosition *pRowPosition, ICursor **ppCursor, LCID lcid);
|
|
|
|
private:
|
|
// the inner, private unknown implementation is for the aggregator
|
|
// to control the lifetime of this object
|
|
//
|
|
class CPrivateUnknownObject : public IUnknown {
|
|
public:
|
|
STDMETHOD(QueryInterface)(REFIID riid, void **ppvObjOut);
|
|
STDMETHOD_(ULONG, AddRef)(void);
|
|
STDMETHOD_(ULONG, Release)(void);
|
|
|
|
// constructor is remarkably trivial
|
|
//
|
|
CPrivateUnknownObject() : m_cRef(0) {}
|
|
|
|
private:
|
|
CVDCursorFromRowset *m_pMainUnknown();
|
|
ULONG m_cRef;
|
|
} m_UnkPrivate;
|
|
|
|
friend class CPrivateUnknownObject;
|
|
};
|
|
|
|
typedef CVDCursorFromRowset* PCVDCursorFromRowset;
|
|
|
|
#endif //_CMSR2C_H_
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|