itkvars(n) [incr Tk] itkvars(n) 







itkvars - variables used by [incr Tk]












The following global variables are created and managed
    automatically by the [incr Tk] library. Except where noted
    below, these variables should normally be treated as read-only by
    application-specific code and by users.



  

  
When an interpreter is created, [incr Tk] initializes this
      variable to hold the name of a directory containing the system library of
      [incr Tk] scripts. The initial value of itk::library
      is set from the ITK_LIBRARY environment variable if it exists, or from a
      compiled-in value otherwise.
    
When [incr Tk] is added to an interpreter, it
        executes the script "init.itk" in this directory. This script,
        in turn, looks for other script files with the name
        "init.xxx". Mega-widget libraries will be automatically
        initialized if they install a script named "init.xxx"
        in this directory, where "xxx" is the name of the
        mega-widget library. For example, the [incr Widgets]
        library installs the script "init.iwidgets" in this directory.
        This script establishes the "iwidgets" namespace, and sets up
        autoloading for all [incr Widgets] commands.

    

  










itcl, itk, variables







  

    3.0
    itk