[MSDN Library June 1998] IUnknown::QueryInterface (70.9116541353384%)

MSDN Library Visual Studio 6.0 > Platform SDK > Graphics and Multimedia Services > DirectX 5 > Introducing DirectX 5 > DirectX and the Component Object Model > IUnknown Interface

[MSDN Library June 1998] IUnknown::Release (60.4949874686717%)

MSDN Library Visual Studio 6.0 > Platform SDK > Graphics and Multimedia Services > DirectX 5 > Introducing DirectX 5 > DirectX and the Component Object Model > IUnknown Interface

[MSDN Library June 1998] IUnknown::AddRef (58.4116541353384%)

MSDN Library Visual Studio 6.0 > Platform SDK > Graphics and Multimedia Services > DirectX 5 > Introducing DirectX 5 > DirectX and the Component Object Model > IUnknown Interface

[MSDN Library June 1998] IUnknown::QueryInterface (55.3194993412385%)

MSDN Library Visual Studio 6.0 > Specifications > Technologies and Languages > Component Object Model (COM) Specification 0.9 > Chapter 3: Objects and Interfaces > The IUnknown Interface

[MSDN Library June 1998] IUnknown and Interface Inheritance (48.9697802197802%)

MSDN Library Visual Studio 6.0 > Platform SDK > COM and ActiveX Object Services > COM > The Component Object Model > COM Objects and Interfaces