Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

IUnknown

In the computer programming of applications on Microsoft Windows through the Windows API, the IUnknown interface is the fundamental interface of Component Object Model (COM). The COM specification mandates that COM objects must implement this interface. Furthermore, every other COM interface must be derived from IUnknown. IUnknown resides in the global…

Products, Methods & Implementations on other platforms

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around IUnknown. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Methods

MethodsDynamic_cast<T>C++CastsJava
11 related topics

Implementations on other platforms

Mac OS XCore FoundationXPCOM
3 related topics

Overview

Computer programmingMicrosoft WindowsWindows APIInterfaceComponent Object Model
8 related topics

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

Methods

Implementations on other platforms

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

IUnknown

Nodes26
Edges25
Triples38
Avg. degree1.92
Density0.076923
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

IUnknown

Top relations

see also · 14
IUnknown → BHO, Browser Helper Object, Embedding, IDispatch, IInspectable, IOleObject, IUnknown-derived, Object Linking, OLE, OLE Automation COM, The COM-derived Windows Runtime, This, This COM, WinRT
has method · 13
IUnknown → AddRef, COM, GUID, ID, If, IID, It, Java, QueryInterface, Release, Specifically, The, TheIUnknowninterface
related to Aggregation, Containment and Delegation · 7
IUnknown → COM, In, It, QueryInterface, The, This, With Aggregated Objects
related to Implementations on other platforms · 4
IUnknown → FoundationCFPlugInframework, In Mozilla's XPCOM, IUnknownserves, Mac OS X's Core

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

interface objects com object implement reference interfaces must method count component virtual implementations platforms pointer used id new property base

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
IUnknownhas methodTheIUnknowninterface0.60section
IUnknownhas methodQueryInterface0.60section
IUnknownhas methodAddRef0.60section
IUnknownhas methodIt0.60section
IUnknownhas methodJava0.60section
IUnknownhas methodSpecifically0.60section
IUnknownhas methodGUID0.60section
IUnknownhas methodID0.60section
IUnknownhas methodIID0.60section
IUnknownhas methodIf0.60section
IUnknownhas methodCOM0.60section
IUnknownhas methodRelease0.60section

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.