file-menu:revert

This method is called when the revert menu-item of the file-menu menu is selected. If file-menu:revert is bound to #f instead of a procedure, the revert menu item will not be created.

• (send a-frame:editor-mixin file-menu:revert item evt) -> void
      item : (instance (derived-from menu-item%))
      evt : (instance control-event%)

  Loads the most recently saved version of the file to the disk. If the editor<%> is a text%, the start and end positions are restored.