GET_INFO(WIDGET_VARIABLE)

 For an overview of the GET_INFO built-in, see the HELP topic GET_INFO.

 The following strings can be used for parameter2 when parameter1 is a
 variable of type widget:

 Parameter 2      | Return Value  (Parameter 1 is a variable of type widget)
 -----------------+----------------------------------------------------------
 "callback_       | Program      - The program or learn sequence
  routine"        |   or           that is called when the specified
                  | Learn          widget calls back.
                  |
 "class"          | String       - The name of the class to which
                  |                the specified widget belongs.
                  |
 "is_managed"     | (1 or 0)     - Returns 1 (TRUE) if the specified
                  |                widget is managed, 0 otherwise.
                  |                This built-in calls the DECwindows
                  |                Toolkit routine IS MANAGED.
                  |
 "is_subclass"    | (1 or 0)     - The syntax of this GET_INFO call
                  |                is as follows:
                  |
                  |                GET_INFO (widget, "is_subclass", integer)
                  |
                  |                The integer parameter is the integer
                  |                returned by DEFINE_WIDGET_CLASS.
                  |
                  |                The call returns 1 (TRUE) if the specified
                  |                widget belongs to the class referred
                  |                to by the specified integer or belongs
                  |                to a subclass of that class.  A TRUE
                  |                value indicates only that the widget
                  |                is equal to or is a subclass of the
                  |                specified class; the value does not
                  |                indicate how far down the class
                  |                hierarchy the widget's class or subclass
                  |                is.
                  |
 "name"           | String       - The name of the specified widget instance.
                  |
 "parent"         | Widget       - The parent of the specified widget
                  | or 0           instance.  If the widget has no parent,
                  |                this GET_INFO call returns 0.
                  |
 "resources"      | Array        - A string-indexed array in which each
                  |                index is a valid resource name for the
                  |                specified widget.  The corresponding
                  |                array element is a string containing
                  |                the resource's data type and class,
                  |                separated by a line feed (ASCII (10)).
                  |
 "text"           | String       - The text in a simple text widget.
                  |
 "widget_info"    | Array        - Values for various resources of the
                  |   or           specified widget.
                  | Pairs of
                  | arguments      The syntax for this call is as follows:
                  |
                  |                GET_INFO (widget_variable, "widget_info",
                  |                         {array | resource_and_value
                  |                         [,array | resource_and_value...]})
                  |
                  |                The values are returned using elements
                  |                of the array or arrays, or the variable
                  |                or variables containing the resource
                  |                values, or a mixture of array elements
                  |                and variables. If there are no values
                  |                to return, VAXTPU assigns an empty
                  |                array to the third parameter.
                  |
                  |                This GET_INFO call is functionally
                  |                equivalent to the DECwindows Toolkit
                  |                GET VALUES routine.
 +----------------+---------------------------------------------------------+