RADLib is a graphics library. It was written in order to help developers design graphics applications easily and quickly. The library is available for .NET, Java, Delphi, Kylix.
ESS-MODEL: The fastest and easiest to use UML reversing tool!
With ESS-MODEL you can view class diagrams from your code in the time that other tools are still busy loading.
Source is written in Delphi.
More info: http://essmodel.sourceforge.net