[MSDN Library June 1998] IUnknown::AddRef (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 (60.6175364882795%)

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 (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::AddRef (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::AddRef (47.0908408408408%)

MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Telephony Application Programming Interface (TAPI) > TAPI Version 3.0 > Call and Media Controls > Call and Media Control Reference > Call and Media Control COM Interfaces > IUnknown