Manual Pages for UNIX Operating System command usage for man echowchar

Curses Library Functions                     curs_addwch(3CURSES)



NAME
     curs_addwch,   addwch,   waddwch,    mvaddwch,    mvwaddwch,
     echowchar, wechowchar - add a wchar_t character (with attri-
     butes) to a curses window and advance cursor

SYNOPSIS
     cc  [flag]... file... -lcurses [library]...


     #include

     int addwch(chtype wch);


     int waddwch(WINDOW *win, chtype wch);


     int mvaddwch(int y, int x, chtype wch);


     int mvwaddwch(WINDOW *win, int y, int x, chtype wch);


     int echowchar(chtype wch);


     int wechowchar(WINDOW *win, chtype wch);


DESCRIPTION
     The  addwch(),waddwch(),mvaddwch(), and mvwaddwch() routines
     put  the  character   wch, holding a wchar_t character, into
     the window at the current cursor position of the window  and
     advance the position of the window cursor. Their function is
     similar to that of  putwchar(3C) in the C multibyte library.
     At  the  right margin, an automatic newline is performed. At
     the bottom of the scrolling region, if  scrollok is enabled,
     the scrolling region is scrolled up one line.


     If  wch is a tab, newline, or backspace, the cursor is moved
     appropriately  within  the  window.  A  newline  also does a
     clrtoeol(3CURSES) before moving. Tabs are considered  to  be
     at  every  eighth column. If  wch is another control charac-
     ter,   it   is   drawn   in   the   ^X   notation.   Calling
     winwch(3CURSES)  after  adding  a control character does not
     return  the  control  character,  but  instead  returns  the
     representation of the control character.


     Video attributes can be combined with a   wchar_t  character
     by  OR-ing  them  into  the parameter. This results in these



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Curses Library Functions                     curs_addwch(3CURSES)



     attributes also being set. (The intent here  is  that  text,
     including  attributes,  can  be  copied  from  one  place to
     another    using     inwch()     and      addwch().)     See
     standout(3CURSES), predefined video attribute constants.


     The  echowchar() and wechowchar() routines are  functionally
     equivalent  to  a  call  to   addwch() followed by a call to
     refresh(3CURSES), or a call to  waddwch() followed by a call
     to wrefresh(3CURSES). The knowledge that only a single char-
     acter is being output is taken into consideration  and,  for
     non-control  characters,  a  considerable  performance  gain
     might be seen by  using  these  routines  instead  of  their
     equivalents.

  Line Graphics
     The following variables may be  used  to  add  line  drawing
     characters to the screen with routines of the  addwch() fam-
     ily. When  variables  are  defined  for  the  terminal,  the
     A_ALTCHARSET  bit  is  turned on. (See  curs_attr(3CURSES)).
     Otherwise, the default character listed below is  stored  in
     the variable. The names chosen are consistent with the VT100
     nomenclature.
































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Curses Library Functions                     curs_addwch(3CURSES)


























































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Curses Library Functions                     curs_addwch(3CURSES)



     ____________________________________________________________________
             Name                Default            Glyph Description
     ____________________________________________________________________
      ACS_ULCORNER         +                     upper left-hand corner
     ____________________________________________________________________
      ACS_LLCORNER         +                     lower left-hand corner
     ____________________________________________________________________
      ACS_URCORNER         +                     upper right-hand corner
     ____________________________________________________________________
      ACS_LRCORNER         +                     lower right-hand corner
     ____________________________________________________________________
      ACS_RTEE             +                     right tee
     ____________________________________________________________________
      ACS_LTEE             +                     left tee
     ____________________________________________________________________
      ACS_BTEE             +                     bottom tee
     ____________________________________________________________________
      ACS_TTEE             +                     top tee
     ____________________________________________________________________
      ACS_HLINE            -                     horizontal line
     ____________________________________________________________________
      ACS_VLINE            |                     vertical line
     ____________________________________________________________________
      ACS_PLUS             +                     plus
     ____________________________________________________________________
      ACS_S1               -                     scan line 1
     ____________________________________________________________________
      ACS_S9               -                     scan line 9
     ____________________________________________________________________
      ACS_DIAMOND          +                     diamond
     ____________________________________________________________________
      ACS_CKBOARD          :                     checker board (stipple)
     ____________________________________________________________________
      ACS_DEGREE           '                     degree symbol
     ____________________________________________________________________
      ACS_PLMINUS          #                     plus/minus
     ____________________________________________________________________
      ACS_BULLET           o                     bullet
     ____________________________________________________________________
      ACS_LARROW           <                     arrow pointing left
     ____________________________________________________________________
      ACS_RARRROW          >                     arrow pointing right
     ____________________________________________________________________
      ACS_DARROW           v                     arrow pointing down
     ____________________________________________________________________
      ACS_UARROW           ^                     arrow pointing up
     ____________________________________________________________________
      ACS_BOARD            #                     board of squares
     ____________________________________________________________________
      ACS_LANTERN          #                     lantern symbol
     ____________________________________________________________________
      ACS_BLOCK            #                     solid square block



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Curses Library Functions                     curs_addwch(3CURSES)



     ____________________________________________________________________


RETURN VALUE
     All routines return the integer  ERR  upon  failure  and  an
     integer  value  other  than  ERR upon successful completion,
     unless otherwise noted in  the  preceding  routine  descrip-
     tions.

ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | MT-Level                    | Unsafe                      |
    |_____________________________|_____________________________|


SEE ALSO
     putwchar(3C),      clrtoeol(3CURSES),       curses(3CURSES),
     curs_attr(3CURSES),                     curs_inwch(3CURSES),
     curs_outopts(3CURSES), refresh(3CURSES),  standout(3CURSES),
     winwch(3CURSES), wrefresh(3CURSES), attributes(5)

NOTES
     The header file  automatically includes the header
     files ,  and .


     Note   that    addwch(),   mvaddwch(),   mvwaddwch(),    and
     echowchar() may be macros.


     None of these  routines  can  use  the  color  attribute  in
     chtype.
















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