Qt is an application development framework based on C++. Traditionally, C++ is the major programming language used to develop with Qt. Over 450,000 developers in more than 70 industries have chosen Qt to build advanced applications and devices.
Qt Creator is a cross-platform IDE (integrated development environment) tailored to the needs of Qt developers. It focuses on providing features that help new Qt users get up and running faster, and also boost the productivity of experienced Qt developers. It's available for download as a stand-alone installer, and comes bundled with Qt 5.0 binary packages.
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Qt libraries | Qt Creator IDE