+ The first four functions get and set those windows. It is not
+ necessary to set either window; by default, the driver code uses <STRONG>stdscr</STRONG>
+ for both.
+
+ In the <STRONG>set_</STRONG> functions, window argument of <STRONG>NULL</STRONG> is treated as though it
+ were <STRONG>stsdcr</STRONG>. A menu argument of <STRONG>NULL</STRONG> is treated as a request to change
+ the system default menu window or subwindow.
+
+ The function <STRONG>scale_menu</STRONG> returns the minimum size required for the
+ subwindow of <EM>menu</EM>.