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Class and Function Documentation

Links to indexes and lists for finding class and function reference documentation.

Class Lists

All Classes

If you know the name of the class you want, find it here.

All Classes by Module

A list of all C++ API components in Qt

All Modules

A list of all modules in Qt 6.

All Namespaces

A Qt namespace contains enum types, functions, and sometimes classes.

All QML Modules

A list of all QML modules in Qt.

All QML Types

A list of QML types in this Qt release.

All QML Value Types

A list of QML value types in this Qt release.

Annotated Class List

If you don't know the name of the class you want, but you know what the class should do, you might try looking here.

Groups Of Related Classes

If you know what kind of class you want (GUI, painting, I.O, etc), look here.

Inheritance Hierarchy

The C++ class inheritance hierarchy for all classes in the Qt API.

Obsolete Classes

Classes and members marked obsolete that should not be used in new code.

Obsolete QML Types

A list of obsolete QML types that should not be used in new code.

Function Lists

<QtAlgorithms>

Includes the generic, template-based algorithms

<QtEndian>

Functions to convert between little and big endian representations of numbers

<QtGlobal>

File includes the fundamental global declarations. It is included by most other Qt header files

<QtMath>

File provides various math functions

<qtwebenginecoreglobal.h>

Helper functions for the Qt WebEngine Core module

All Functions

All documented Qt functions listed alphabetically with a link to where each one is declared.

qfloat16

Provides 16-bit floating point support

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