Gtk2Hs is a GUI library for  Haskell based on Gtk. Gtk is an extensive and
mature multi-platform toolkit for creating graphical user interfaces.

Gtk2Hs features:

    * Automatic memory management.
    * Nearly complete coverage of the Gtk+ API.
    * Unicode support.
    * Extensive reference documentation.
    * Support for several related GtK+ and Gnome modules:
          o the cairo vector graphics library.
          o rendering of SVG images using cairo (via librsvg)
          o the Gtk+ OpenGL extension.
          o GConf for storing application preferences.
          o SourceView, an editor widget with syntax highlighting.
          o the Mozilla browser rendering engine in a Gtk+ widget

WWW: http://haskell.org/gtk2hs/