curs_add_wch man page on IRIX

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curs_add_wch(3X)				 curs_add_wch(3X)

NAME
       add_wch,	  wadd_wch,  mvadd_wch,	 mvwadd_wch,  echo_wchar,
       wecho_wchar - add a complex character and rendition  to	a
       curses window, then advance the cursor

SYNOPSIS
       #include <curses.h>

       int add_wch( const cchar_t *wch );
       int wadd_wch( WINDOW *win, const cchar_t *wch );
       int mvadd_wch( int y, int x, const cchar_t *wch );
       int  mvwadd_wch(	 WINDOW *win, int y, int x, const cchar_t
       *wch );
       int echo_wchar( const cchar_t *wch );
       int wecho_wchar( WINDOW *win, const cchar_t *wch );

DESCRIPTION
       The add_wch, wadd_wch, mvadd_wch, and mvwadd_wch functions
       put the complex character wch into the given window at its
       current position, which is then advanced.  These functions
       perform	wrapping and special-character processing as fol-
       lows:

       -    If wch refers to a spacing character, then any previ-
	    ous	 character  at	that  location is removed.  A new
	    character specified by wch is placed at that location
	    with  rendition  specified	by  wch.  The cursor then
	    advances to the next spacing character on the screen.

       -    If	wch refers to a non-spacing character, all previ-
	    ous characters at that location are	 preserved.   The
	    non-spacing	 characters of wch are added to the spac-
	    ing complex character, and the rendition specified by
	    wch is ignored.

       -    If	the  character	part  of  wch  is a tab, newline,
	    backspace or other control character, the  window  is
	    updated  and  the  cursor  moves as if addch(3X) were
	    called.

       The echo_wchar function is functionally	equivalent  to	a
       call to add_wch followed by a call to refresh.  Similarly,
       the wecho_wchar is functionally equivalent to  a	 call  to
       wadd_wch	 followed  by  a call to wrefresh.  The knowledge
       that only a single character is being output is taken into
       consideration and, for non-control characters, a consider-
       able performance gain might be seen by  using  the  *echo*
       functions instead of their equivalents.

RETURN VALUES
       All routines return the integer ERR upon failure and OK on
       success.

NOTES
       Note that add_wch, mvadd_wch, mvwadd_wch,  and  echo_wchar
       may be macros.

PORTABILITY
       All  these functions are described in the XSI Curses stan-
       dard, Issue 4.  The defaults specified  for  forms-drawing
       characters apply in the POSIX locale.

       XSI  documents  constants  beginning  with WACS_ which are
       used for line-drawing.  Those  are  not	currently  imple-
       mented in ncurses.

SEE ALSO
       curses(3X),  curs_attr_get(3X),	curs_clear(3X), curs_out-
       opts(3X), curs_refresh(3X), putwc(3)

						 curs_add_wch(3X)
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