The Qt API is implemented in C++, and provides additional features for easier cross-platform development. Qt supports QML, its own declarative language built on top of JavaScript, and Qt Quick, a framework built on top of QML. It is designed to describe a program's user interface: what it looks like and how it behaves. As an alternative to using C++, bindings to Qt exist for Python as Qt for Python .
The Qt framework contains a comprehensive set of highly intuitive and modularized C++ library classes and is loaded with APIs to simplify your application development. Qt provides an intuitive C++ class library with a rich set of application build blocks for C++ development and adds the following features to C++:
Qt QML provides a framework for developing applications and libraries with the QML 语言 . It defines and implements the language and engine infrastructure, and provides an API to enable and extend the QML language with custom types and integrate QML code with JavaScript and C++. The Qt QML module provides both a QML API 和 C++ API .
The Qt QML module provides the language and infrastructure for QML applications. The Qt Quick 模块为构建用户界面提供了更多视觉组件、模型 视图支持、动画框架、等。
The QML language allows you to define trees of objects with a JSON-like syntax. It also allows you to implement logic in JavaScript.
JavaScript expressions allow QML code to contain application logic. Qt QML provides the framework for running JavaScript expressions in QML and from C++. It supports:
Qt for Python offers the official Python bindings for Qt, which enables you to use Python to write your Qt applications. The project has the following components:
