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Regarding FLTK: was originálly done by Bill Spitzak (who obviously has used IRIX/4DWM), now famous for Nuke https://www.atogt.com/askoscar/display-person.php?id

• mhd 3y ago
  And it was based or at least inspired on the previous XForms[1] toolkit – the one with way too many bevel shapes for buttons etc., not the XML thing. Probably at least partially done because XForms wasn't open source, and to provide a more "modern" C++ API. Meanwhile, XForms has been open-sourced, but FLTK being in a different language and having evolved a bit since its creation didn't suffer from the problems Lesstif had and is standing on its own rather well. And despite being C++, it pops up rather often when you're looking for GUIs with decent language bindings (e.g. for Lua or Rust). Probably because it's less a moving target than Qt or, heck, Gtk. 1: http://xforms-toolkit.org http://xforms-toolkit.org
  • hawski 3y ago
    Related: Xfce originally stood for "XForms Common Environment".
    • anthk 3y ago
      Yep, later used GTK and then it was totally libre. Also, up to the 4.2? releases XFCE with XFFM was uber fast.
  • ReleaseCandidat 3y ago
    See https://www.fltk.org/doc-1.0/intro.html#2_1 https://www.fltk.org/doc-1.0/intro.html#2_1
• rollcat 3y ago
  Rakarrack <https://rakarrack.sourceforge.net/ https://rakarrack.sourceforge.net/> has a GUI written in FLTK. It was my earliest adventure with guitar effects and DSP (ca 2008); it ran on a potato laptop and still kept up, which made the whole setup actually viable for spontaneous jam sessions at other people's places. Good times.