QT4白皮书.pdf

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Qt Whitepaper
Trolltech
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Abstract
This whitepaper describes the Qt C++ framework. Qt supports the development of cross-
platform GUI applications with its “write once, compile any where” approach. Using a
single source tree and a simple recompilation, application s can be written for Windows 98
to XP, Mac OS X, Linux, Solaris, HP-UX, and many other versions of Unix with X11. Qt
applications can also be compiled to run on embedded Linux pl atforms. Qt introduces a
unique inter-object communication mechanism called “sign als and slots.” Qt has excellent
cross-platform support for 2D and 3D graphics, internation alization, SQL, XML, as well
as providing platform-speciflc extensions for specialized applications. Qt applications can
be built visually using Qt Designer , a flexible user interface builder with support for IDE