Install itk3-doc by entering the following commands in the terminal:
sudo apt update sudo apt install itk3-doc
Description:
[incr Tk] OOP extension for Tk - manual pages
[incr Tk] (or itk) combines the object-oriented power of [incr Tcl] with the popular Tk graphical toolkit to create a framework for creating mega-widgets. One such set of mega-widgets is provided by the iwidgets package. . This package contains the man pages for the classes provided by itk.
Homepage: http://incrtcl.sourceforge.net/
Version: 3.4.2-2
Section: universe/doc