mred:standard-menus-frame% provides standard menus that applications which deal with files should have. It provides a File and Edit menu. The File menu has Open..., New..., Revert, Save, Save As..., and Close. The Edit menu has Undo, Redo, cut, Copy, Paste, and Clear.
This class is incomplete. If you want to use it you should create a class which inherits from mred:standard-menus-frame% and provides callbacks for the menus. Only the file-menu:open, file-menu:new, file-menu:quit and edit-menu:preferencescallbacks do anything by default.
Calls super-init and then make-menu-bar to install the menu bar into the frame.