reactos/include/ddk/punknown.h

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/*
ReactOS Kernel-Mode COM
by Andrew Greenwood
This file is in the public domain.
*/
#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
/* ===============================================================
IUnknown
*/
#ifndef __IUnknown_INTERFACE_DEFINED__
#define __IUnknown_INTERFACE_DEFINED__
DEFINE_GUID(IID_IUnknown,
0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x46);
#undef INTERFACE
#define INTERFACE IUnknown
DECLARE_INTERFACE(IUnknown) {
STDMETHOD_(NTSTATUS, QueryInterface)( THIS_
_In_ REFIID,
_COM_Outptr_ PVOID*) PURE;
STDMETHOD_(ULONG, AddRef)( THIS ) PURE;
STDMETHOD_(ULONG, Release)( THIS ) PURE;
};
#endif /* __IUnknown_INTERFACE_DEFINED__ */
#undef INTERFACE
typedef IUnknown *PUNKNOWN;
/* ===============================================================
IUnknown definition
Boilerplate code macro for use in subclassed interfaces
*/
#define DEFINE_ABSTRACT_UNKNOWN() \
STDMETHOD_(NTSTATUS, QueryInterface)( THIS_ \
REFIID InterfaceId, \
PVOID* Interface) PURE; \
\
STDMETHOD_(ULONG, AddRef)(THIS) PURE; \
\
STDMETHOD_(ULONG, Release)(THIS) PURE;
/* ===============================================================
Constructor callback definition
*/
typedef HRESULT
(NTAPI *PFNCREATEINSTANCE)(
_Out_ PUNKNOWN* Unknown,
_In_ REFCLSID ClassId,
_In_ PUNKNOWN OuterUnknown,
_In_ POOL_TYPE PoolType);
#endif /* _UNKNOWN_H_ */