On this page:
close-icon%

4 Close Icon

The close-icon% class provides a clickable close button icon.

close-icon% : class?

  superclass: canvas%

(new close-icon% [parent parent] 
  [[callback callback] 
  [bg-color bg-color] 
  [horizontal-pad horizontal-pad] 
  [vertical-pad vertical-pad]]) 
  (is-a?/c close-icon%)
  parent : (is-a? area-container<%>)
  callback : (-> any) = void
  bg-color : (or/c #f string (is-a?/c color%)) = #f
  horizontal-pad : positive-integer? = 4
  vertical-pad : positive-integer? = 4
The callback is called when the close icon is clicked.

If bg-color is specified, it is used as the background color of the icon.