1/*
 2    ReactOS Kernel-Mode COM
 3    by Andrew Greenwood
 4
 5    This file is in the public domain.
 6*/
 7
 8#ifndef _UNKNOWN_H_
 9#define _UNKNOWN_H_
10
11#ifdef __cplusplus
12extern "C" {
13#include <wdm.h>
14}
15#else
16#include <wdm.h>
17#endif
18
19#include <windef.h>
20#define COM_NO_WINDOWS_H
21#include <basetyps.h>
22
23#ifdef PUT_GUIDS_HERE
24#include <initguid.h>
25#endif
26
27
28/* ===============================================================
29    IUnknown
30*/
31
32#ifndef __IUnknown_INTERFACE_DEFINED__
33#define __IUnknown_INTERFACE_DEFINED__
34DEFINE_GUID(
35    IID_IUnknown,
36    0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x46);
37
38#undef INTERFACE
39#define INTERFACE IUnknown
40
41DECLARE_INTERFACE(IUnknown)
42{
43    STDMETHOD_(NTSTATUS, QueryInterface)( THIS_
44        IN  REFIID,
45        OUT PVOID*)
46    PURE;
47
48    STDMETHOD_(ULONG, AddRef)( THIS )
49    PURE;
50
51    STDMETHOD_(ULONG, Release)( THIS )
52    PURE;
53};
54#endif
55
56#undef INTERFACE
57
58typedef IUnknown *PUNKNOWN;
59
60
61/* ===============================================================
62    IUnknown definition
63    Boilerplate code macro for use in subclassed interfaces
64*/
65
66#define DEFINE_ABSTRACT_UNKNOWN() \
67    STDMETHOD_(NTSTATUS, QueryInterface)( THIS_ \
68        REFIID InterfaceId, \
69        PVOID* Interface) \
70    PURE; \
71\
72    STDMETHOD_(ULONG, AddRef)(THIS) \
73    PURE; \
74\
75    STDMETHOD_(ULONG, Release)(THIS) \
76    PURE;
77
78
79/* ===============================================================
80    Constructor callback definition
81*/
82
83typedef HRESULT (NTAPI *PFNCREATEINSTANCE)(
84    OUT PUNKNOWN* Unknown,
85    IN  REFCLSID ClassId,
86    IN  PUNKNOWN OuterUnknown,
87    IN  POOL_TYPE PoolType);
88
89#endif /* _UNKNOWN_H_ */
90