188 lines
5.7 KiB
Groff
188 lines
5.7 KiB
Groff
.\" $NetBSD: curses_addch.3,v 1.10 2018/10/25 10:36:56 uwe Exp $
|
|
.\"
|
|
.\" Copyright (c) 2002
|
|
.\" Brett Lymn (blymn@NetBSD.org, brett_lymn@yahoo.com.au)
|
|
.\"
|
|
.\" This code is donated to the NetBSD Foundation by the Author.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. The name of the Author may not be used to endorse or promote
|
|
.\" products derived from this software without specific prior written
|
|
.\" permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\"
|
|
.Dd October 25, 2018
|
|
.Dt CURSES_ADDCH 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm curses_addch ,
|
|
.Nm addch ,
|
|
.Nm waddch ,
|
|
.Nm mvaddch ,
|
|
.Nm mvwaddch
|
|
.Nd curses add characters to windows routines
|
|
.Sh LIBRARY
|
|
.Lb libcurses
|
|
.Sh SYNOPSIS
|
|
.In curses.h
|
|
.Ft int
|
|
.Fn addch "chtype ch"
|
|
.Ft int
|
|
.Fn waddch "WINDOW *win" "chtype ch"
|
|
.Ft int
|
|
.Fn mvaddch "int y" "int x" "chtype ch"
|
|
.Ft int
|
|
.Fn mvwaddch "WINDOW *win" "int y" "int x" "chtype ch"
|
|
.Sh DESCRIPTION
|
|
These functions add characters to
|
|
.Dv stdscr
|
|
or to the specified window.
|
|
.Pp
|
|
The
|
|
.Fn addch
|
|
function adds the character given in
|
|
.Fa ch
|
|
to
|
|
.Dv stdscr
|
|
at the current cursor position and advances the current cursor position by one.
|
|
Any character attributes set in
|
|
.Fa ch
|
|
will be merged with the background attributes currently set on
|
|
.Dv stdscr .
|
|
.Pp
|
|
The
|
|
.Fn waddch
|
|
function is the same as the
|
|
.Fn addch
|
|
function, excepting that the character is added to the window specified by
|
|
.Fa win .
|
|
.Pp
|
|
The
|
|
.Fn mvaddch
|
|
and
|
|
.Fn mvwaddch
|
|
functions are the same as the
|
|
.Fn addch
|
|
and
|
|
.Fn waddch
|
|
functions, respectively, excepting that
|
|
.Fn wmove
|
|
is called to move the cursor to the position specified by
|
|
.Fa y ,
|
|
.Fa x
|
|
before the character is added to the window.
|
|
.Ss LINE DRAWING CHARACTERS
|
|
Some terminals support the display of line drawing and graphics characters.
|
|
These characters can be added using their defined names, as shown in the
|
|
table below.
|
|
Where the terminal does not support a specific character, the default
|
|
(non-graphics) character is displayed instead.
|
|
.Bl -column -offset indent ".Sy System V Name" ".Sy Default"
|
|
.It Sy "Name" Ta Sy "Default" Ta Sy "Description"
|
|
.It ACS_RARROW Ta > Ta "Arrow pointing right"
|
|
.It ACS_LARROW Ta < Ta "Arrow pointing left"
|
|
.It ACS_UARROW Ta ^ Ta "Arrow pointing up"
|
|
.It ACS_DARROW Ta v Ta "Arrow pointing down"
|
|
.It ACS_BLOCK Ta # Ta "Solid square block"
|
|
.It ACS_DIAMOND Ta + Ta "Diamond"
|
|
.It ACS_CKBOARD Ta : Ta "Checker board (stipple)"
|
|
.It ACS_DEGREE Ta ' Ta "Degree symbol"
|
|
.It ACS_PLMINUS Ta # Ta "Plus/minus"
|
|
.It ACS_BOARD Ta # Ta "Board of squares"
|
|
.It ACS_LANTERN Ta # Ta "Lantern symbol"
|
|
.It ACS_LRCORNER Ta + Ta "Lower right-hand corner"
|
|
.It ACS_URCORNER Ta + Ta "Upper right-hand corner"
|
|
.It ACS_ULCORNER Ta + Ta "Upper left-hand corner"
|
|
.It ACS_LLCORNER Ta + Ta "Lower left-hand corner"
|
|
.It ACS_PLUS Ta + Ta "Plus"
|
|
.It ACS_HLINE Ta - Ta "Horizontal line"
|
|
.It ACS_S1 Ta - Ta "Scan line 1"
|
|
.It ACS_S9 Ta - Ta "Scan line 9"
|
|
.It ACS_LTEE Ta + Ta "Left tee"
|
|
.It ACS_RTEE Ta + Ta "Right tee"
|
|
.It ACS_BTEE Ta + Ta "Bottom tee"
|
|
.It ACS_TTEE Ta + Ta "Top tee"
|
|
.It ACS_VLINE Ta | Ta "Vertical line"
|
|
.It ACS_BULLET Ta o Ta "Bullet"
|
|
.El
|
|
.Pp
|
|
The following additional,
|
|
.Em ncurses
|
|
compatible, characters are also supported.
|
|
.Bl -column -offset indent ".Sy System V Name" ".Sy Default"
|
|
.It Sy "Name" Ta Sy "Default" Ta Sy "Description"
|
|
.It ACS_S3 Ta - Ta "Scan line 3"
|
|
.It ACS_S7 Ta - Ta "Scan line 7"
|
|
.It ACS_LEQUAL Ta < Ta "Less than or equal to"
|
|
.It ACS_GEQUAL Ta > Ta "Greater than or equal to"
|
|
.It ACS_PI Ta * Ta "Pi symbol"
|
|
.It ACS_NEQUAL Ta ! Ta "Not equal to"
|
|
.It ACS_STERLING Ta f Ta "Sterling symbol"
|
|
.El
|
|
.Pp
|
|
For compatibility with some
|
|
.Em System V
|
|
implementations, the following definitions are also supported.
|
|
.Bl -column -offset indent ".Sy System V Name" ".Sy Default"
|
|
.It Sy "System V Name" Ta Sy "NetBSD Curses Name"
|
|
.It ACS_SBBS Ta ACS_LRCORNER
|
|
.It ACS_BBSS Ta ACS_URCORNER
|
|
.It ACS_BSSB Ta ACS_ULCORNER
|
|
.It ACS_SSBB Ta ACS_LLCORNER
|
|
.It ACS_SSSS Ta ACS_PLUS
|
|
.It ACS_BSBS Ta ACS_HLINE
|
|
.It ACS_SSSB Ta ACS_LTEE
|
|
.It ACS_SBSS Ta ACS_RTEE
|
|
.It ACS_SSBS Ta ACS_BTEE
|
|
.It ACS_BSSS Ta ACS_TTEE
|
|
.It ACS_SBSB Ta ACS_VLINE
|
|
.El
|
|
.Sh RETURN VALUES
|
|
Functions returning pointers will return
|
|
.Dv NULL
|
|
if an error is detected.
|
|
The functions that return an int will return one of the following
|
|
values:
|
|
.Pp
|
|
.Bl -tag -width ERR -compact
|
|
.It Er OK
|
|
The function completed successfully.
|
|
.It Er ERR
|
|
An error occurred in the function.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr curses_addchstr 3 ,
|
|
.Xr curses_addstr 3 ,
|
|
.Xr curses_attributes 3 ,
|
|
.Xr curses_cursor 3 ,
|
|
.Xr curses_delch 3 ,
|
|
.Xr curses_inch 3 ,
|
|
.Xr curses_insch 3
|
|
.Sh STANDARDS
|
|
The
|
|
.Nx
|
|
Curses library complies with the X/Open Curses specification, part of the
|
|
Single Unix Specification.
|
|
.Sh HISTORY
|
|
The Curses package appeared in
|
|
.Bx 4.0 .
|