[MSDN Library April 2000] IUnknown (78.968253968254%)

MSDN Library - April 2000 > Platform SDK > Graphics and Multimedia Services > DirectX > DirectX Media SDK > DirectAnimation > Glossary > DirectShow > C/C++ Reference > DirectShow COM Interfaces

[MSDN Library April 2000] IUnknown Macro (60.7460317460317%)

MSDN Library - April 2000 > Platform SDK > Graphics and Multimedia Services > DirectX > DirectX Media SDK > DirectAnimation > Glossary > DirectShow > C/C++ Reference > Utility Functions

[MSDN Library April 2000] IUnknown (49.0522875816993%)

MSDN Library - April 2000 > Platform SDK > Graphics and Multimedia Services > DirectX > DirectX Media SDK > DirectAnimation > Glossary > DirectShow > Glossary > DirectX Transform > C++/COM Reference > Interfaces

[MSDN Library April 2000] IUnknown Interface (44.5638998682477%)

MSDN Library - April 2000 > Specifications > Technologies and Languages > Component Object Model (COM) Specification 0.9 > Chapter 3: Objects and Interfaces > The IUnknown Interface

[MSDN Library April 2000] IUnknown::QueryInterface (43.5972222222222%)

MSDN Library - April 2000 > Platform SDK > Graphics and Multimedia Services > Windows Multimedia > Multimedia Reference > Multimedia Interfaces