IUnknown.h File Reference

#include "HResult.h"

Go to the source code of this file.

Classes
struct	_GUID

Macros
#define	DECLSPEC_UUID(x)
#define	GUID_DEFINED
#define	__IUnknown_INTERFACE_DEFINED__
#define	IUNKNOWN_DISAMBIG_R(TYPE)
#define	IUNKNOWN_DISAMBIG(TYPE)

Typedefs
typedef struct _GUID	GUID
typedef GUID	IID

Variables
__DECL_IMPORT GUID	IID_IUnknown

Detailed Description

support for COM style interfaces. might even be used in linux.

Copyright

1992 - 2020 Dennis Robinson (http://www.menasoft.com)

Macro Definition Documentation

__IUnknown_INTERFACE_DEFINED__

#define __IUnknown_INTERFACE_DEFINED__

DECLSPEC_UUID

#define DECLSPEC_UUID

(

x

)

GUID_DEFINED

#define GUID_DEFINED

IUNKNOWN_DISAMBIG

#define IUNKNOWN_DISAMBIG

(

TYPE

)

Value:

        STDMETHOD(QueryInterface)( /* [in] */ const IID& riid, /* [iid_is][out] */ void __RPC_FAR* __RPC_FAR* ppvObject ) override \
        { return TYPE::QueryInterface(riid,ppvObject); } \
        IUNKNOWN_DISAMBIG_R(TYPE);

IUNKNOWN_DISAMBIG_R

#define IUNKNOWN_DISAMBIG_R

(

TYPE

)

Value:

        STDMETHOD_(ULONG,AddRef)(void) override /* disambiguate.*/ \
        { return TYPE::AddRef(); } \
        STDMETHOD_(ULONG, Release)(void) override /* disambiguate.*/\
        { return TYPE::Release(); }

COM IUnknown interface support. identify the true base class for IUnknown. in the case of multiple inheritance of IUnknown based classes.

Note

Do not have multiple inheritance in interface definitions. MultiInherit is for classes not for interfaces. or if you do, don't make IUnknown base ambiguous to resolve in the interface! Leave that for classes.

Typedef Documentation

GUID

typedef struct _GUID GUID

IID

typedef GUID IID

Variable Documentation

IID_IUnknown

__DECL_IMPORT GUID IID_IUnknown

extern