Fenestra: an Eiffel Win32 library

Fenestra is a Win32 API GUI library, which while being specific to the Win32 API is high level enough to allow convenient programming in an object oriented manner. It also aims to be portable to any of the actively supported Eiffel compilers for the Win32 platforms, allowing users to mix and match compilers as they wishes. Freeware, Eiffel Forum License.