| 1 | #pragma once
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| 2 |
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| 3 | #include "windows_base.h"
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| 4 |
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| 5 | typedef interface IUnknown IUnknown;
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| 6 |
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| 7 | DEFINE_GUID(IID_IUnknown, 0x00000000,0x0000,0x0000,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46)
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| 8 |
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| 9 | #ifdef __cplusplus
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| 10 | struct IUnknown {
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| 11 |
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| 12 | public:
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| 13 |
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| 14 | virtual HRESULT QueryInterface(REFIID riid, void** ppvObject) = 0;
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| 15 | template<class Q>
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| 16 | HRESULT STDMETHODCALLTYPE QueryInterface(Q **pp) {
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| 17 | return QueryInterface(__uuidof(Q), (void **)pp);
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| 18 | }
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| 19 |
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| 20 | virtual ULONG AddRef() = 0;
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| 21 | virtual ULONG Release() = 0;
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| 22 |
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| 23 | };
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| 24 | #else
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| 25 | typedef struct IUnknownVtbl
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| 26 | {
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| 27 | BEGIN_INTERFACE
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| 28 |
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| 29 | HRESULT (STDMETHODCALLTYPE *QueryInterface)(
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| 30 | IUnknown *This,
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| 31 | REFIID riid,
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| 32 | void **ppvObject
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| 33 | );
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| 34 | ULONG (STDMETHODCALLTYPE *AddRef)(IUnknown *This);
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| 35 | ULONG (STDMETHODCALLTYPE *Release)(IUnknown *This);
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| 36 |
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| 37 | END_INTERFACE
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| 38 | } IUnknownVtbl;
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| 39 |
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| 40 | interface IUnknown
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| 41 | {
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| 42 | CONST_VTBL struct IUnknownVtbl *lpVtbl;
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| 43 | };
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| 44 |
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| 45 | #define IUnknown_AddRef(This) ((This)->lpVtbl->AddRef(This))
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| 46 | #define IUnknown_Release(This) ((This)->lpVtbl->Release(This))
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| 47 |
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| 48 | #endif // __cplusplus
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| 49 |
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| 50 | DECLARE_UUIDOF_HELPER(IUnknown, 0x00000000,0x0000,0x0000,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46)
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| 51 |
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| 52 | #define IID_PPV_ARGS(ppType) __uuidof(decltype(**(ppType))), [](auto** pp) { (void)static_cast<IUnknown*>(*pp); return reinterpret_cast<void**>(pp); }(ppType)
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