add-show-menu-items in drscheme:frame:<%>
This method is called during the construction of the view menu. This method is intended to be overridden. It is expected to add other Show/Hide menu items to the show menu.
See also
get-show-menu.
(-> voidsenda-drscheme:frame:add-show-menu-itemsshow-menu)
show-menu: (is-a?/cmenu%)Does nothing.