The Qt application and UI framework contains a modular C++ class library and developer tools that can help you easily create advanced cross-platform applications and UIs for a variety of industries.

Because of Qt's comprehensive application framework, rich set of application building blocks and cross-platform capabilities, companies are assured that their developers' productivity is boosted lending to:

Increased developer efficiency
Lower development and maintenance costs
Faster time to market

Qt includes:

Qt framework - intuitive APIs for C++ and CSS/JavaScript-like programming including Qt Quick for fast UI creation.
Qt Creator IDE - powerful cross-platform integrated development environment, including UI designer tools and on-device debugging.
Tools and toolchains - local and remote compilers, internationalization support, device toolchains and more.
Target Multiple Platforms with Qt Commercial

With Qt Commercial you can target multiple desktop and embedded platforms with a single source code. Qt Commercial allows you to create powerful and complex applications for all major desktop and embedded platforms by simply reusing the same code.  The modular C++ class library and developer tools easily enables developers to create applications for one platform and easily build and run to deploy on another platform.

Qt Commercial is available for the following platforms

Windows
Mac
Linux/X11
Embedded Linux
Windows Embedded
Solaris
Green Hills Software INTEGRITY
QNX
VxWorks*