Qt Quick QML Types

The Qt Quick module provides graphical primitive types. These types are only available in a QML document if that document imports the QtQuick namespace.

The current version of the QtQuick module is version 12, and thus it may be imported via the following statement:


  import QtQuick 2.12

Visit the Qt Quick module documentation for more information about the concepts which are central to QtQuick.

Submodules

Qt Quick includes several submodules which contain additional types.

  • Xml List Model - contains types for creating models from XML data
  • Local Storage - a submodule containing a JavaScript interface for an SQLite database
  • Particles - provides a particle system for QML applications
  • Window - contains types for creating top-level windows and accessing screen information
  • Dialogs - contains types for creating and interacting with system dialogs
  • Controls - provides a set of reusable UI components
  • Layouts - contains types that are used to arrange items in the user interface
  • Tests - types for testing QML applications.

Basic Types

There are a number of basic types that are supported by default in the QML language.

In addition, the QtQuick import provides the following basic types:

color

ARGB color value. The color type refers to an ARGB color value. It can be specified in a number of ways:

font

Font value with the properties of QFont. The font type refers to a font value with the properties of QFont

matrix4x4

A matrix4x4 type is a 4-row and 4-column matrix

quaternion

A quaternion type has scalar, x, y, and z attributes

vector2d

A vector2d type has x and y attributes

vector3d

Value with x, y, and z attributes

vector4d

A vector4d type has x, y, z and w attributes

Object Types

Most object types provided by the QtQuick import are based on the Item type, which itself derives from QtObject. QML object types provided by the Qt QML module (such as QtObject and Component) are also available when you import QtQuick.