Purpose: to list, and discuss, the non-[Tk] GUI extensions/packages .
It is okay if the extension API looks like Tk - we just want to cover the ones which don't graphically LOOK like Tk (or at least use code other than the standard Tk code).


   * [Peter G. Baum]'s gnocl, maintained at http://www.dr-baum.net/gnocl/ .

   [[... Qt ...]] [[ [Petasis George] has worked on this.]]

   [[... CTk ... cursesTk?]]

   [[... wxWindows ...]]

   [[... tclMotif ...]]

   [[... tcl-gtk ... "stable enough and quite complete"]]

   [[... nexTk? ...]]

   * TclWin [http://www.bgi-sa.com/] provides a native Microsoft Windows GUI interface to Tcl.  Incidentally, [Tclscript] gives a variant GUI-on-Win construction founded on related technology.
   * [Iain Findleton]'s [Tcl Fltk]