attroff,  wattroff,  attron,  wattron,  attrset, wattrset,
       color_set,  wcolor_set,  standend,  wstandend,   standout,
       wstandout,   attr_get,   wattr_get,  attr_off,  wattr_off,
       attr_on, wattr_on,  attr_set,  wattr_set,  chgat,  wchgat,
       mvchgat, mvwchgat, PAIR_NUMBER - curses character and win-
       dow attribute control routines


       #include <curses.h>
       int attroff(int attrs);
       int wattroff(WINDOW *win, int attrs);
       int attron(int attrs);
       int wattron(WINDOW *win, int attrs);
       int attrset(int attrs);
       int wattrset(WINDOW *win, int attrs);
       int color_set(short color_pair_number, void* opts);
       int wcolor_set(WINDOW *win, short color_pair_number,
             void* opts);
       int standend(void);
       int wstandend(WINDOW *win);
       int standout(void);
       int wstandout(WINDOW *win);
       int attr_get(attr_t *attrs, short *pair, void *opts);
       int wattr_get(WINDOW *win, attr_t *attrs, short *pair,
              void *opts);
       int attr_off(attr_t attrs, void *opts);
       int wattr_off(WINDOW *win, attr_t attrs, void *opts);
       int attr_on(attr_t attrs, void *opts);
       int wattr_on(WINDOW *win, attr_t attrs, void *opts);
       int attr_set(attr_t attrs, short pair, void *opts);
       int wattr_set(WINDOW *win, attr_t attrs, short pair,  void
       int chgat(int n, attr_t attr, short color,
             const void *opts)
       int wchgat(WINDOW *win, int n, attr_t attr,
             short color, const void *opts)
       int mvchgat(int y, int x, int n, attr_t attr,
             short color, const void *opts)
       int mvwchgat(WINDOW *win, int y, int x, int n,
             attr_t attr, short color, const void *opts)


       These  routines  manipulate  the current attributes of the
       named window.  The current attributes of a window apply to
       all  characters that are written into the window with wad-
       dch, waddstr and wprintw.  Attributes are  a  property  of
       the  character,  and  move  with the character through any
       scrolling and insert/delete line/character operations.  To
       the  extent  possible,  they  are displayed as appropriate
       modifications to the graphic rendition of  characters  put
       on the screen.

       The  routine  attrset  sets  the current attributes of the
       given window to attrs.  The routine attroff turns off  the
       named  attributes  without turning any other attributes on
       or off.  The routine attron turns on the named  attributes
       without affecting any others.  The routine standout is the
       same as attron(A_STANDOUT).  The routine standend  is  the
       same as attrset(A_NORMAL) or attrset(0), that is, it turns
       off all attributes.

       The routine color_set sets the current color of the  given
       window  to the foreground/background combination described
       by the color_pair_number. The parameter opts  is  reserved
       for future use, applications must supply a null pointer.

       The  routine  wattr_get  returns the current attribute and
       color pair for the given window; attr_get returns the cur-
       rent  attribute  and color pair for stdscr.  The remaining
       attr_* functions operate exactly  like  the  corresponding
       attr*  functions,  except that they take arguments of type
       attr_t rather than int.

       The routine chgat changes the attributes of a given number
       of  characters  starting at the current cursor location of
       stdscr.  It does not update the cursor and does  not  per-
       form  wrapping.   A  character count of -1 or greater than
       the remaining window width means to change attributes  all
       the  way to the end of the current line.  The wchgat func-
       tion generalizes this to any window; the mvwchgat function
       does a cursor move before acting.  In these functions, the
       color argument is a color-pair  index  (as  in  the  first
       argument  of  init_pair,  see  curs_color(3x)).   The opts
       argument is not presently used, but is  reserved  for  the
       future (leave it NULL).

       The following video attributes, defined in <curses.h>, can
       be passed to the routines attron, attroff, and attrset, or
       OR'ed with the characters passed to addch.

        A_NORMAL        Normal display (no highlight)
        A_STANDOUT      Best highlighting mode of the terminal.
        A_UNDERLINE     Underlining
        A_REVERSE       Reverse video
        A_BLINK         Blinking
        A_DIM           Half bright
        A_BOLD          Extra bright or bold
        A_PROTECT       Protected mode
        A_INVIS         Invisible or blank mode
        A_ALTCHARSET    Alternate character set
        A_CHARTEXT      Bit-mask to extract a character
        COLOR_PAIR(n)   Color-pair number n

       The following macro is the reverse of COLOR_PAIR(n):

       PAIR_NUMBER(attrs) Returns the pair number associated
                          with the COLOR_PAIR(n) attribute.

       The  return values of many of these routines are not mean-
       ingful (they are implemented as macro-expanded assignments
       and  simply  return their argument).  The SVr4 manual page
       claims (falsely) that these routines always return 1.


       Note that attroff,  wattroff,  attron,  wattron,  attrset,
       wattrset, standend and standout may be macros.


       All  these functions are supported in the XSI Curses stan-
       dard, Issue 4.  The standard defined  the  dedicated  type
       for  highlights,  attr_t,  which  is  not  defined in SVr4
       curses. The functions taking attr_t arguments are not sup-
       ported under SVr4.

       The  XSI  Curses  standard  states that whether the tradi-
       tional  functions  attron/attroff/attrset  can  manipulate
       attributes  other  than A_BLINK, A_BOLD, A_DIM, A_REVERSE,
       A_STANDOUT, or A_UNDERLINE is "unspecified".   Under  this
       implementation  as  well  as  SVr4 curses, these functions
       correctly manipulate all other  highlights  (specifically,

       XSI  Curses added the new entry points, attr_get, attr_on,
       attr_off,  attr_set,   wattr_on,   wattr_off,   wattr_get,
       wattr_set.   These  are intended to work with a new series
       of highlight macros prefixed with WA_.

        WA_NORMAL       Normal display (no highlight)
        WA_STANDOUT     Best highlighting mode of the terminal.
        WA_UNDERLINE    Underlining
        WA_REVERSE      Reverse video
        WA_BLINK        Blinking
        WA_DIM          Half bright
        WA_BOLD         Extra bright or bold
        WA_ALTCHARSET   Alternate character set

       The XSI curses standard specifies that each pair of corre-
       sponding  A_  and WA_-using functions operates on the same
       current-highlight information.

       The XSI standard extended conformance level adds new high-
       TICAL (and corresponding WA_ macros for each)  which  this
       curses does not yet support.


       curses(3x),        curs_addch(3x),        curs_addstr(3x),

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