man pages section 3: Curses Library Functions
    
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 halfdelay - enable/disable half-delay mode ( Index Term Link )
 
 has_colors - manipulate color information ( Index Term Link )
 
 has_ic - determine insert/delete character/line capability ( Index Term Link )
 
 has_il - determine insert/delete character/line capability ( Index Term Link )
 
 hline - use single-byte characters (and renditions) to draw lines ( Index Term Link )
 
 hline_set - use complex characters (and renditions) to draw lines ( Index Term Link )