enable in radio-box%

Enables or disables a window so that input events are ignored. (Input events include mouse events, keyboard events, and close-box clicks, but not focus or update events.) When a window is disabled, input events to its children are also ignored.

The enable state of a window can be changed by enabling a parent window, and such changes do not go through this method; use on-superwindow-enable to monitor enable state changes.

• (send a-radio-box enable enable?) -> void
     enable? : boolean

  If enable? is #f, the entire radio box is disabled, otherwise it is enabled.

  
  

• (send a-radio-box enable n enable?) -> void
     n : exact non-negative integer
     enable? : boolean

  If enable? is #f, the nth radio button is disabled, otherwise it is enabled (assuming the entire radio box is enabled). Radio buttons are numbered from 0. If n is equal to or larger than the number of radio buttons in the radio box, an exn:fail:contract exception is raised.