(menu-bar-menu-frame-live-and-visible-p)

(menu-bar-menu-frame-live-and-visible-p)
(menu-bar-non-minibuffer-window-p): New functions.
("Split Window", "Save As..."): Use them.
("Postscript Print Buffer (B+W)", "Postscript Print Buffer")
("Print Buffer", "Truncate Long Lines in this Buffer"):  Use
menu-bar-menu-frame-live-and-visible-p.
("Save Buffer", "Insert File", "Open Directory...")
("Open File...", "Visit New File..."): Use
menu-bar-non-minibuffer-window-p.
(kill-this-buffer-enabled-p, dired <menu-enable>): Use
menu-bar-non-minibuffer-window-p.