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12 lines
232 B
C++
12 lines
232 B
C++
#pragma once
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#include <windows.h>
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#include <winerror.h>
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#include <objbase.h>
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class IUnknown {
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virtual HRESULT QueryInterface (REFIID riid, void **ppvObject) = 0;
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virtual ULONG AddRef () = 0;
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virtual ULONG Release () = 0;
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};
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