itkvars(3itk) [incr Tk] itkvars(3itk)
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-specific 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 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.
KEYWORDS
itcl, itk, variables
itk 3.0 itkvars(3itk)
