...particularly associated with C++ development for Linux, but the QtAPI and tools are consistent across all supported platforms...difficult is it to master? Once they have learned the QtAPI, developers can produce applications which will run unchanged...
http://www.computerweekly.com/Articles/2008/07/14/231461/hot-skills-qt.htm
...most common image files, including TIFF, JPG and GIF, and can be extended to support other image formats through the QtAPI. Improved Support for Distributed Development In addition, Perforce 2008.1 improves support for remote users...
http://news.thomasnet.com/fullstory/548326