Winteracter is a graphics and GUI toolset for Fortran 90 or later. It was originally developed and sold by Interactive Software Services Ltd. between 1997 and 2024, growing out of the earlier I.S.S. INTERACTER package (1989-2001). It comprises various visual development tools and a substantial subroutine library, which is compatible with many modern Fortran compilers.

The toolset is now maintained on a non-commercial, voluntarily supported basis. Users who held an up to date (v16.0) licence at the time of the I.S.S. closure can obtain the latest version, via this site.


Current version : 16.10

Package Highlights

  • Create desktop GUI based applications using Fortran 9x/200x
  • GUI controls based on native Windows/Motif components
  • Totally Fortran based, no mixed language programming
  • No low level API access required
  • Visual tools simplify GUI design
  • Meaningful names make code easier to read/maintain
  • Mature platform-independent graphics
  • Substantial operating system interface
  • Numerous graphics hardcopy/export formats supported

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