Qt is a toolkit for software developers. Qt project simplifies the task of writing and maintaining GUI (graphical user interface) applications. It is written in C++ and is fully object-oriented.
It is a multi-platform toolkit. When you implement a program with Qt, you can run it on the X Window System (Unix/X11), Apple Mac OS X, and Microsoft Windows NT/9x/2000/XP by simply compiling the source code for the platform you want.
One of the key design goals behind Qt is to make cross-platform application programming intuitive, easy and fun.
Qt achieves this goal by abstracting low-level infrastructure functionality in the underlying window and operating systems, providing a coherent and logical interface that makes sense to programmers.
The Qt API and tools are consistent across all supported platforms (see below for details), enabling plat . you can
free download
Qt 421 now.