curs_border_set(3X)

NAME
border_set, wborder_set, box_set, hline_set, whline_set, mvhline_set, mvwhline_set, vline_set, wvline_set, mvvline_set, mvwvline_set - draw borders and lines in a curses window of wide characters

SYNOPSIS
#include <curses.h>

int border_set(const cchar_t *ls, const cchar_t *rs,
      const cchar_t *ts, const cchar_t *bs,
      const cchar_t *tl, const cchar_t *tr,
      const cchar_t *bl, const cchar_t *br);
int wborder_set(WINDOW *win,
      const cchar_t *ls, const cchar_t *rs,
      const cchar_t *ts, const cchar_t *bs,
      const cchar_t *tl, const cchar_t *tr,
      const cchar_t *bl, const cchar_t *br);

int box_set(WINDOW *win, const cchar_t *verch,
      const cchar_t *horch);

int hline_set(const cchar_t *wch, int n);
int whline_set(WINDOW *win, const cchar_t *wch, int n);
int mvhline_set(int y, int x, const cchar_t *wch, int n);
int mvwhline_set(WINDOW *win, int y, int x,
      const cchar_t *wch, int n);

int vline_set(const cchar_t *wch, int n);
int wvline_set(WINDOW *win, const cchar_t *wch, int n);
int mvvline_set(int y, int x, const cchar_t *wch, int n);
int mvwvline_set(WINDOW *win, int y, int x,
      const cchar_t *wch, int n);

DESCRIPTION
The border_set and wborder_set functions draw a border around the edges of the current or specified window. These functions do not change the cursor position, and do not wrap.

Other than the window, each argument is a complex character with attributes:
    ls - left side,
    rs - right side,
    ts - top side,
    bs - bottom side,
    tl - top left-hand corner,
    tr - top right-hand corner,
    bl - bottom left-hand corner, and
    br - bottom right-hand corner.

If any of these arguments is zero, then the corresponding default values (defined in curses.h) are used instead:
    WACS_VLINE,
    WACS_VLINE,
    WACS_HLINE,
    WACS_HLINE,
    WACS_ULCORNER,
    WACS_URCORNER,
    WACS_LLCORNER, and
    WACS_LRCORNER.

box_set(win, verch, horch); is a shorthand for the following call:

wborder_set(win, verch, verch,
    horch, horch, NULL, NULL, NULL, NULL);

The *line_set functions use wch to draw a line starting at the current cursor position in the window. The line is at most n characters long or as many as fit into the window. The current cursor position is not changed.

The hline_set, mvhline_set, mvwhline_set, and whline_set functions draw a line proceeding toward the last column of the same line.

The vline_set, mvvline_set, mvwvline_set, and wvline_set functions draw a line proceeding toward the last line of the window.

RETURN VALUE
Upon successful completion, these functions return OK. Otherwise, they return ERR.

Functions using a window parameter return ERR if it is null.

Functions prefixed with “mv” first perform cursor movement and fail if the position (y, x) is outside the window boundaries.

NOTES
border_set, hline_set, mvhline_set, mvvline_set, mvwhline_set, mvwvline_set, and vline_set may be implemented as macros.

PORTABILITY
X/Open Curses Issue 4 describes these functions. It specifies no error conditions for them.

HISTORY
X/Open Curses Issue 4 (1995) initially specified these functions.

SEE ALSO
curses(3X), curs_add_wch(3X), curs_border(3X), curs_outopts(3X)