The border(3), wborder(3) and box(3)
routines draw a box around the edges of a window. The argument
ls is a character and attributes used for the left side of
the border, 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 following default values (defined in
<curses.h>) are used instead: ACS_VLINE, ACS_VLINE,
ACS_HLINE, ACS_HLINE, ACS_ULCORNER, ACS_URCORNER, ACS_BLCORNER,
ACS_BRCORNER.
The hline(3) and whline(3) functions draw a
horizontal (left to right) line using ch starting at the
current cursor position in the window. The current cursor position
is not changed. The line is at most n characters long, or as
many as fit into the window.
The vline(3) and wvline(3) functions draw a
vertical (top to bottom) line using ch starting at the
current cursor position in the window. The current cursor position
is not changed. The line is at most n characters long, or as
many as fit into the window.
These functions are described in the XSI Curses standard, Issue 4.
Additional functions mvhline(), mvvline(),
mvwhline(), and mvwvline() are described there which
this implementation does not yet support. The standard specifies
that they return ERR on failure, but specifies no error conditions.