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itkvars(n)                                        [incr Tk]                                       itkvars(n)



NAME
       itkvars - variables used by [incr Tk]


DESCRIPTION
       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-spe-cific application-specific
       cific code and by users.

       itk::library
              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 com-piled-in compiled-in
              piled-in value otherwise.

              When [incr Tk] is added to an interpreter, it executes the script "init.itk"  in  this  direc-tory. directory.
              tory.  This script, in turn, looks for other script files with the name "init.xxx".  Mega-wid-get Mega-widget
              get 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.


KEYWORDS
       itcl, itk, variables



itk                                                  3.0                                          itkvars(n)