Qt是一个多平台的C++图形用户界面应用程序框架。它提供给应用程序开发者建立艺术级的图形用户界面所需的所用功能。Qt是完全面向对象的很容易扩展，并且允许真正地组件编程。

自从1996年早些时候，Qt进入商业领域，它已经成为全世界范围内数千种成功的应用程序的基础。Qt也是流行的Linux桌面环境KDE 的基础，KDE是所有主要的Linux发行版的一个标准组件。 -Qt is a multi-platform C++ graphical user interface application framework. It provides to the application developers to build-the-art graphical user interface used for the required functionality. Qt is fully object-oriented very easily extended, and allows real component programming.

Since early 1996, Qt into the commercial field, it has become a worldwide success of thousands of kinds of applications that base. Qt is also a popular Linux-based KDE desktop environment, KDE is a Linux distribution to all major version of a standard component.