Open-Source Software
Software development tools are sometimes expensive. To reduce development cost, the sourcecode parts which are not
a corporate secret can be developed as an open-source project. Lots of otherwise expensive development tools are
free in that case.
The following API's can be used for free in Open-source projects:
| API | Windows | Unix/Linux/BSD | Apple OSX |
| Trolltech QT 2 | X | X | |
| Trolltech QT 3 | | X | X |
| Trolltech QT 4 | X | X | X |
| wxWindows | X | X | X |
| .GNU/MONO | X | X | |
| Kylix | X | X | |