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 )