box Subroutine

Purpose

Draws borders from single-byte characters and renditions.

Library

Curses Library (libcurses.a)

Syntax

#include <curses.h>
int box(WINDOW  *win,
chtype  verch,
chtype  horch);

Description

The box subroutine draws a border around the edges of the specified window. This subroutine does not advance the cursor position. This subroutine does not perform special character processing or perform wrapping.

The box subroutine (*win, verch, horch) has an effect equivalent to:

wborder(win, verch, verch, horch, horch, 0, 0, 0, 0);

Parameters

Item Description
horch Specifies the character to draw the horizontal lines of the box. The character must be a 1-column character.
verch Specifies the character to draw the vertical lines of the box. The character must be a 1-column character.
*win Specifies the window to draw the box in or around.

Return Values

Upon successful completion, the box function returns OK. Otherwise, it returns ERR.

Examples

  1. To draw a box around the user-defined window, my_window, using | (pipe) as the vertical character and - (minus sign) as the horizontal character, enter: 
    WINDOW *my_window;
box(my_window, '|', '-');
  2. To draw a box around my_window using the default characters ACS_VLINE and ACS_HLINE, enter: 
    WINDOW *my_window;
box(my_window, 0, 0);