man pages section 3: Curses Library Functions
    
U
 
 unctrl -- generate printable representation of a character ( Index Term Link )
 
 unget_wch -- push character back onto the input queue ( Index Term Link )
 
 ungetch -- push character back onto the input queue ( Index Term Link )
 
 ungetwch -- get (or push back) wchar_t characters from curses terminal keyboard ( Index Term Link )
 
 untouchwin -- control window refresh ( Index Term Link )
 
 use complex characters (and renditions) to draw borders
  -- border_set ( Index Term Link )
  -- box_set ( Index Term Link )
  -- wborder_set ( Index Term Link )
 
 use complex characters (and renditions) to draw lines
  -- hline_set ( Index Term Link )
  -- mvhline_set ( Index Term Link )
  -- mvvline_set ( Index Term Link )
  -- mvwhline_set ( Index Term Link )
  -- mvwvline_set ( Index Term Link )
  -- vline_set ( Index Term Link )
  -- whline_set ( Index Term Link )
  -- wvline_set ( Index Term Link )
 
 use_env -- specify source of screen size information ( Index Term Link )
 
 use single-byte characters (and renditions) to draw lines
  -- hline ( Index Term Link )
  -- mvhline ( Index Term Link )
  -- mvvline ( Index Term Link )
  -- mvwhline ( Index Term Link )
  -- mvwvline ( Index Term Link )
  -- vline ( Index Term Link )
  -- whline ( Index Term Link )
  -- wvline ( Index Term Link )