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[DirectX 7 Programmer's Reference] IUnknown::AddRef (23.1970324361629%)

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[DirectX 3 Programmer's Reference] IUnknown::AddRef (23.0935127674258%)

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[DirectX 5 Programmer's Reference] IUnknown::AddRef (23.0935127674258%)

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[DirectX 6 Programmer's Reference] IUnknown::AddRef (22.8864734299517%)

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[DirectX 7 Programmer's Reference] IUnknown::Release (22.4617383185158%)

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DirectX 8.1 (C++) > Introducing DirectX 8.1 > Programming DirectX with C/C++ > Using COM > IUnknown Interface

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[DirectX 7 Programmer's Reference] IUnknown::QueryInterface (19.0303657694962%)

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[DirectX 3 Programmer's Reference] IUnknown::QueryInterface (18.9268461007591%)

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[DirectX 5 Programmer's Reference] IUnknown::QueryInterface (18.9268461007591%)

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DirectX 8.1 (C++) > Introducing DirectX 8.1 > Programming DirectX with C/C++ > Using COM > IUnknown Interface