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 /* ===============================================================
  29     IUnknown
  30 */
  31
  32 #ifndef __IUnknown_INTERFACE_DEFINED__
  33 #define __IUnknown_INTERFACE_DEFINED__
  34 DEFINE_GUID(
  35     IID_IUnknown,
  36     0x00000000, 0x0000, 0x0000, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46);
  37
  38 #undef INTERFACE
  39 #define INTERFACE IUnknown
  40
  41 DECLARE_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
  58 typedef 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
  83 typedef HRESULT (NTAPI *PFNCREATEINSTANCE)(
  84     OUT PUNKNOWN* Unknown,
  85     IN  REFCLSID ClassId,
  86     IN  PUNKNOWN OuterUnknown,
  87     IN  POOL_TYPE PoolType);
  88
  89 #endif