itk - itkvars (n)

[incr\ Tk]

NAME

itkvars - variables used by [incrTk]

DESCRIPTION

The following global variables are created and managed automatically by the [incrTk] 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, [incrTk] initializes this variable to hold the name of a directory containing the system library of [incrTk] 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 [incrTk] 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 [incrWidgets] library installs the script "init.iwidgets" in this directory. This script establishes the "iwidgets" namespace, and sets up autoloading for all [incrWidgets] commands.

KEYWORDS

itcl, itk, variables

[ itk ]

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