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 [[iinnccrr TTkk]] library.   Except  where  noted  below,  these  variables
       should  normally  be  treated as read-only by application-specific code
       and by users.

       iittkk::::lliibbrraarryy
              When an interpreter is created, [[iinnccrr TTkk]] initializes this vari-
              able  to  hold  the  name  of  a directory containing the system
              library of [[iinnccrr TTkk]] scripts.  The initial value of iittkk::::lliibbrraarryy
              is  set  from the ITKLIBRARY environment variable if it exists,
              or from a compiled-in value otherwise.

              When [[iinnccrr TTkk]] 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
              [[iinnccrr WWiiddggeettss]] library installs the  script  "init.iwidgets"  in
              this  directory.   This script establishes the "iwidgets" names-
              pace, and sets up autoloading for all [[iinnccrr WWiiddggeettss]] commands.


KKEEYYWWOORRDDSS
       itcl, itk, variables



itk                                   3.0                           itkvars(n)