include/ddk/punknown.h

   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
  12 extern "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     IUnknown
  29 */
  30
  31 #ifndef __IUnknown_INTERFACE_DEFINED__
  32 #define __IUnknown_INTERFACE_DEFINED__
  33
  34 DEFINE_GUID(IID_IUnknown,
  35   0x00000000, 0x0000, 0x0000, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46);
  36
  37 #undef INTERFACE
  38 #define INTERFACE IUnknown
  39
  40 DECLARE_INTERFACE(IUnknown) {
  41   STDMETHOD_(NTSTATUS, QueryInterface)( THIS_
  42     IN  REFIID,
  43     OUT PVOID*) PURE;
  44
  45   STDMETHOD_(ULONG, AddRef)( THIS ) PURE;
  46
  47   STDMETHOD_(ULONG, Release)( THIS ) PURE;
  48 };
  49
  50 #endif /* __IUnknown_INTERFACE_DEFINED__ */
  51
  52 #undef INTERFACE
  53
  54 typedef IUnknown *PUNKNOWN;
  55
  56 /* ===============================================================
  57     IUnknown definition
  58     Boilerplate code macro for use in subclassed interfaces
  59 */
  60
  61 #define DEFINE_ABSTRACT_UNKNOWN()             \
  62   STDMETHOD_(NTSTATUS, QueryInterface)( THIS_ \
  63     REFIID InterfaceId,                       \
  64     PVOID* Interface) PURE;                   \
  65                                               \
  66   STDMETHOD_(ULONG, AddRef)(THIS) PURE;       \
  67                                               \
  68   STDMETHOD_(ULONG, Release)(THIS) PURE;
  69
  70 /* ===============================================================
  71     Constructor callback definition
  72 */
  73
  74 typedef HRESULT
  75 (NTAPI *PFNCREATEINSTANCE)(
  76   OUT PUNKNOWN* Unknown,
  77   IN REFCLSID ClassId,
  78   IN PUNKNOWN OuterUnknown,
  79   IN POOL_TYPE PoolType);
  80
  81 #endif /* _UNKNOWN_H_ */