windows-nt/Source/XPSP1/NT/drivers/published/ddk/inc/punknown.w
2020-09-26 16:20:57 +08:00

76 lines
1.5 KiB
OpenEdge ABL

/*****************************************************************************
* punknown.h - IUnknown definitions
*****************************************************************************
* Copyright (c) Microsoft Corporation. All rights reserved.
*/
#ifndef _UNKNOWN_H_
#define _UNKNOWN_H_
#ifdef __cplusplus
extern "C" {
#include <wdm.h>
}
#else
#include <wdm.h>
#endif
#include <windef.h>
#define COM_NO_WINDOWS_H
#include <basetyps.h>
#ifdef PUT_GUIDS_HERE
#include <initguid.h>
#endif
DEFINE_GUID(IID_IUnknown,
0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x46);
/*****************************************************************************
* IUnknown
*****************************************************************************
* Base interface for otherwise unknown objects.
*/
#undef INTERFACE
#define INTERFACE IUnknown
DECLARE_INTERFACE(IUnknown)
{
STDMETHOD_(NTSTATUS,QueryInterface)
( THIS_
IN REFIID,
OUT PVOID *
) PURE;
STDMETHOD_(ULONG,AddRef)
( THIS
) PURE;
STDMETHOD_(ULONG,Release)
( THIS
) PURE;
};
#undef INTERFACE
typedef IUnknown *PUNKNOWN;
/*****************************************************************************
* PFNCREATEINSTANCE
*****************************************************************************
* Type for object create function.
*/
typedef
HRESULT
(*PFNCREATEINSTANCE)
(
OUT PUNKNOWN * Unknown,
IN REFCLSID ClassId,
IN PUNKNOWN OuterUnknown,
IN POOL_TYPE PoolType
);
#endif