FreeBSD Manual Pages
addch(3XCURSES) X/Open Curses Library Functions addch(3XCURSES) NAME addch, mvaddch, mvwaddch, waddch - add a character (with rendition) to a window SYNOPSIS cc [ flag... ] file... -I /usr/xpg4/include -L /usr/xpg4/lib \ -R /usr/xpg4/lib -lcurses [ library... ] c89 [ flag... ] file... -lcurses [ library ... ] #include <curses.h> int addch(const chtype ch); int mvaddch(int y, int x, const chtype ch); int mvwaddch(WINDOW *win, int y, int x, const chtype ch); int waddch(WINDOW *win, const chtype ch); DESCRIPTION The addch() function writes a character to the stdscr window at the current cursor position. The mvaddch() and mvwaddch() functions write the character to the position indicated by the x (column) and y (row) parameters. The mvaddch() function writes the character to the stdscr window, while mvwaddch() writes the character to the window specified by win. The waddch() function is identical to addch(), but writes the character to the window specified by win. These functions advance the cursor after writing the character. Charac- ters that do not fit on the end of the current line are wrapped to the beginning of the next line unless the current line is the last line of the window and scrolling is disabled. In that situation, characters which extend beyond the end of the line are discarded. When ch is a backspace, carriage return, newline, or tab, X/Open Curses moves the cursor appropriately. Each tab character moves the cursor to the next tab stop. By default, tab stops occur every eight columns. When ch is a control character other than backspace, carriage return, newline, or tab, it is written using ^x notation, where x is a print- able character. When X/Open Curses writes ch to the last character po- sition on a line, it automatically generates a newline. When ch is written to the last character position of a scrolling region and scrol- lok() is enabled, X/Open Curses scrolls the scrolling region up one line (see clearok(3XCURSES)). PARAMETERS wchstr Is a pointer to the cchar_t string to be copied to the window. n Is the maximum number of characters to be copied from wchstr. If n is less than 0, the entire string is written or as much of it as fits on the line. y Is the y (row) coordinate of the starting position of wchstr in the window. x Is the x (column) coordinate of the starting position of wchstr in the window. win Is a pointer to the window to which the string is to be copied. RETURN VALUES On success, these functions return OK. Otherwise, they return ERR. ERRORS None. ATTRIBUTES See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |Unsafe | +-----------------------------+-----------------------------+ SEE ALSO attroff(3XCURSES), bkgdset(3XCURSES), doupdate(3XCURSES), inch(3XCURSES), insch(3XCURSES), libcurses(3XCURSES), nl(3XCURSES), printw(3XCURSES), scrollok(3XCURSES), scrl(3XCURSES), terminfo(4), at- tributes(5), standards(5) SunOS 5.10 5 Jun 2002 addch(3XCURSES)
NAME | SYNOPSIS | DESCRIPTION | PARAMETERS | RETURN VALUES | ERRORS | ATTRIBUTES | SEE ALSO
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