add_wch man page on OpenBSD

Man page or keyword search:  
man Server   11362 pages
apropos Keyword Search (all sections)
Output format
OpenBSD logo
[printable version]

curs_add_wch(3)						       curs_add_wch(3)

       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

       #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 );

       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 follows:

       -    If wch refers to a spacing character, then any previous 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 previous characters
	    at that location are preserved.  The non-spacing characters of wch
	    are added to the spacing 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 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
       considerable performance gain might be seen by using the *echo*
       functions instead of their equivalents.

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

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

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

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

       curses(3), curs_addch(3), curs_attr(3), curs_clear(3), curs_outopts(3),
       curs_refresh(3), putwc(3)

								 March 1, 2011

List of man pages available for OpenBSD

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
Vote for polarhome
Free Shell Accounts :: the biggest list on the net