lazy-refresh

Enables or disables lazy-refresh mode, or gets the current enable state. In lazy-refresh mode, the canvas's refresh method is called when the window needs to be updated, rather than on-paint. By default, an editor-canvas% object is not in lazy-refresh mode.

• (send an-editor-canvas lazy-refresh) -> boolean

  Returns #t if lazy-refresh mode is enabled, #f otherwise.

  
  

• (send an-editor-canvas lazy-refresh on?) -> void
      on? : boolean

  If on? if #f, lazy-refresh mode is disabled, otherwise it is enabled.