#lang scribble/doc @(require "common.rkt") @defclass/title[column-control-event% control-event% ()]{ A @racket[column-control-event%] object contains information about a event on an @racket[list-box%] column header. @defconstructor[([column exact-nonnegative-integer?] [event-type (or/c 'list-box-column)] [time-stamp exact-integer? 0])]{ The @racket[column] argument indicates the column that was clicked. } @defmethod[(get-column) exact-nonnegative-integer?]{ Returns the column number (counting from 0) of the clicked column. } @defmethod[(set-column [column exact-nonnegative-integer?]) void?]{ Sets the column number (counting from 0) of the clicked column. }}