Qt is widely used for GUI and console application development tools and servers, and it especially attractive for programmers who need to write cross-platform applications to run on Linux / Unix, Mac and Windows machines without having to rewrite for each platform. Book of QT 4 offers an in-depth in Qt 4 that goes beyond common focus on C + + programming. You'll find coverage of: Tools to create a dialog with Qt Designer GUI design layout widgets and dialog construction4.95 ($ 65.95 CDN), data visualization using Qt's model / Concept Display module graphics library Arthur QtSql and File handling, XML, processes, and database and network connections threading the Event handling and using drag and drop Internationalization and debugging Are you already a Qt developer or you simply consider Qt for cross-platform development, you'll find The Book of Qt 4 that would be necessary.