Qt (pronounced “cute”) is an open-source Frameworks for creating graphical user interfaces as well as cross-platform applications that run on various software and hardware platforms with little or no change in the underlying codebase while still being a native application with native capabilities and speed.
In this article, we will discuss several points of the Qt framework:
- The presentation of the framework and its target platforms deploying.
- The applications that use it.
- We will also present the IDE proposed by Qt, called Qt Creator, it’s a very good IDE for C++ and Qt applications.
- And we will see another language created by Qt, which is both powerful, performant, and high level. It called QML, it’s integrated in Qt Quick module.
- We will talk also about the tools used by Qt for helping to create application.
Qt frameworks
Using Qt, you can write GUI applications once and deploy them across desktop, mobile and embedded operating systems without rewriting the source code ( https://doc.qt.io/qt-5/supported-platforms.html).
Code less. Create more. Deploy everywhere. Qt. Its the objective of Qt.
Qt is written in C++, but you can also use language binding as Python with PySide2 (official Qt) or PyQt (unofficial).
There exist other bindings languages created by the community:
Qt also offers a large number of modules.
QML (Qt Markup Language)
QML (module of Qt Quick) is a declarative language. It allows developers and designers alike to create highly performant, fluidly animated and visually appealing applications. It offers a highly readable, declarative, JSON-like syntax with support for imperative JavaScript expressions, and it allows components to be easily reused and customized within a user interface.
In a typical project, the front-end is developed in QML/JavaScript. The back-end code, which interfaces with the system and does the heavy lifting, is developed using Qt C++/Python. This allows a natural split between the more design-oriented developers and the functional developers.