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<H1 class="no-header">ncurses 3x</H1>
<PRE>
<STRONG><A HREF="ncurses.3x.html">ncurses(3x)</A></STRONG> <STRONG><A HREF="ncurses.3x.html">ncurses(3x)</A></STRONG>
</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
<STRONG>ncurses</STRONG> - CRT screen handling and optimization package
</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
<STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
The <STRONG>ncurses</STRONG> library routines give the user a terminal-independent
method of updating character screens with reasonable optimization.
This implementation is "new curses" (ncurses) and is the approved
replacement for 4.4BSD classic curses, which has been discontinued.
This describes <STRONG>ncurses</STRONG> version 6.2 (patch 20200212).
The <STRONG>ncurses</STRONG> library emulates the curses library of System V Release 4
UNIX, and XPG4 (X/Open Portability Guide) curses (also known as XSI
curses). XSI stands for X/Open System Interfaces Extension. The
<STRONG>ncurses</STRONG> library is freely redistributable in source form. Differences
from the SVr4 curses are summarized under the <STRONG>EXTENSIONS</STRONG> and <STRONG>PORTABIL-</STRONG>
<STRONG>ITY</STRONG> sections below and described in detail in the respective <STRONG>EXTEN-</STRONG>
<STRONG>SIONS</STRONG>, <STRONG>PORTABILITY</STRONG> and <STRONG>BUGS</STRONG> sections of individual man pages.
The <STRONG>ncurses</STRONG> library also provides many useful extensions, i.e., fea-
tures which cannot be implemented by a simple add-on library but which
require access to the internals of the library.
A program using these routines must be linked with the <STRONG>-lncurses</STRONG>
option, or (if it has been generated) with the debugging library
<STRONG>-lncurses_g</STRONG>. (Your system integrator may also have installed these
libraries under the names <STRONG>-lcurses</STRONG> and <STRONG>-lcurses_g</STRONG>.) The ncurses_g
library generates trace logs (in a file called 'trace' in the current
directory) that describe curses actions. See also the section on
<STRONG>ALTERNATE</STRONG> <STRONG>CONFIGURATIONS</STRONG>.
The <STRONG>ncurses</STRONG> package supports: overall screen, window and pad manipula-
tion; output to windows and pads; reading terminal input; control over
terminal and <STRONG>curses</STRONG> input and output options; environment query rou-
tines; color manipulation; use of soft label keys; terminfo capabili-
ties; and access to low-level terminal-manipulation routines.
</PRE><H3><a name="h3-Initialization">Initialization</a></H3><PRE>
The library uses the locale which the calling program has initialized.
That is normally done with <STRONG>setlocale</STRONG>:
<STRONG>setlocale(LC_ALL,</STRONG> <STRONG>"");</STRONG>
If the locale is not initialized, the library assumes that characters
are printable as in ISO-8859-1, to work with certain legacy programs.
You should initialize the locale and not rely on specific details of
the library when the locale has not been setup.
The function <STRONG>initscr</STRONG> or <STRONG>newterm</STRONG> must be called to initialize the
library before any of the other routines that deal with windows and
screens are used. The routine <STRONG><A HREF="curs_initscr.3x.html">endwin(3x)</A></STRONG> must be called before exit-
ing.
To get character-at-a-time input without echoing (most interactive,
screen oriented programs want this), the following sequence should be
used:
<STRONG>initscr();</STRONG> <STRONG>cbreak();</STRONG> <STRONG>noecho();</STRONG>
Most programs would additionally use the sequence:
<STRONG>nonl();</STRONG>
<STRONG>intrflush(stdscr,</STRONG> <STRONG>FALSE);</STRONG>
<STRONG>keypad(stdscr,</STRONG> <STRONG>TRUE);</STRONG>
Before a <STRONG>curses</STRONG> program is run, the tab stops of the terminal should be
set and its initialization strings, if defined, must be output. This
can be done by executing the <STRONG>tput</STRONG> <STRONG>init</STRONG> command after the shell environ-
ment variable <STRONG>TERM</STRONG> has been exported. <STRONG>tset(1)</STRONG> is usually responsible
for doing this. [See <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG> for further details.]
</PRE><H3><a name="h3-Datatypes">Datatypes</a></H3><PRE>
The <STRONG>ncurses</STRONG> library permits manipulation of data structures, called
<EM>windows</EM>, which can be thought of as two-dimensional arrays of charac-
ters representing all or part of a CRT screen. A default window called
<STRONG>stdscr</STRONG>, which is the size of the terminal screen, is supplied. Others
may be created with <STRONG>newwin</STRONG>.
Note that <STRONG>curses</STRONG> does not handle overlapping windows, that's done by
the <STRONG><A HREF="panel.3x.html">panel(3x)</A></STRONG> library. This means that you can either use <STRONG>stdscr</STRONG> or
divide the screen into tiled windows and not using <STRONG>stdscr</STRONG> at all. Mix-
ing the two will result in unpredictable, and undesired, effects.
Windows are referred to by variables declared as <STRONG>WINDOW</STRONG> <STRONG>*</STRONG>. These data
structures are manipulated with routines described here and elsewhere
in the <STRONG>ncurses</STRONG> manual pages. Among those, the most basic routines are
<STRONG>move</STRONG> and <STRONG>addch</STRONG>. More general versions of these routines are included
with names beginning with <STRONG>w</STRONG>, allowing the user to specify a window.
The routines not beginning with <STRONG>w</STRONG> affect <STRONG>stdscr</STRONG>.
After using routines to manipulate a window, <STRONG><A HREF="curs_refresh.3x.html">refresh(3x)</A></STRONG> is called,
telling <STRONG>curses</STRONG> to make the user's CRT screen look like <STRONG>stdscr</STRONG>. The
characters in a window are actually of type <STRONG>chtype</STRONG>, (character and
attribute data) so that other information about the character may also
be stored with each character.
Special windows called <EM>pads</EM> may also be manipulated. These are windows
which are not constrained to the size of the screen and whose contents
need not be completely displayed. See <STRONG><A HREF="curs_pad.3x.html">curs_pad(3x)</A></STRONG> for more informa-
tion.
In addition to drawing characters on the screen, video attributes and
colors may be supported, causing the characters to show up in such
modes as underlined, in reverse video, or in color on terminals that
support such display enhancements. Line drawing characters may be
specified to be output. On input, <STRONG>curses</STRONG> is also able to translate
arrow and function keys that transmit escape sequences into single val-
ues. The video attributes, line drawing characters, and input values
use names, defined in <STRONG><curses.h></STRONG>, such as <STRONG>A_REVERSE</STRONG>, <STRONG>ACS_HLINE</STRONG>, and
<STRONG>KEY_LEFT</STRONG>.
</PRE><H3><a name="h3-Environment-variables">Environment variables</a></H3><PRE>
If the environment variables <STRONG>LINES</STRONG> and <STRONG>COLUMNS</STRONG> are set, or if the pro-
gram is executing in a window environment, line and column information
in the environment will override information read by <EM>terminfo</EM>. This
would affect a program running in an AT&T 630 layer, for example, where
the size of a screen is changeable (see <STRONG>ENVIRONMENT</STRONG>).
If the environment variable <STRONG>TERMINFO</STRONG> is defined, any program using
<STRONG>curses</STRONG> checks for a local terminal definition before checking in the
standard place. For example, if <STRONG>TERM</STRONG> is set to <STRONG>att4424</STRONG>, then the com-
piled terminal definition is found in
<STRONG>/usr/share/terminfo/a/att4424</STRONG>.
(The <STRONG>a</STRONG> is copied from the first letter of <STRONG>att4424</STRONG> to avoid creation of
huge directories.) However, if <STRONG>TERMINFO</STRONG> is set to <STRONG>$HOME/myterms</STRONG>,
<STRONG>curses</STRONG> first checks
<STRONG>$HOME/myterms/a/att4424</STRONG>,
and if that fails, it then checks
<STRONG>/usr/share/terminfo/a/att4424</STRONG>.
This is useful for developing experimental definitions or when write
permission in <STRONG>/usr/share/terminfo</STRONG> is not available.
The integer variables <STRONG>LINES</STRONG> and <STRONG>COLS</STRONG> are defined in <STRONG><curses.h></STRONG> and will
be filled in by <STRONG>initscr</STRONG> with the size of the screen. The constants
<STRONG>TRUE</STRONG> and <STRONG>FALSE</STRONG> have the values <STRONG>1</STRONG> and <STRONG>0</STRONG>, respectively.
The <STRONG>curses</STRONG> routines also define the <STRONG>WINDOW</STRONG> <STRONG>*</STRONG> variable <STRONG>curscr</STRONG> which is
used for certain low-level operations like clearing and redrawing a
screen containing garbage. The <STRONG>curscr</STRONG> can be used in only a few rou-
tines.
</PRE><H3><a name="h3-Routine-and-Argument-Names">Routine and Argument Names</a></H3><PRE>
Many <STRONG>curses</STRONG> routines have two or more versions. The routines prefixed
with <STRONG>w</STRONG> require a window argument. The routines prefixed with <STRONG>p</STRONG> require
a pad argument. Those without a prefix generally use <STRONG>stdscr</STRONG>.
The routines prefixed with <STRONG>mv</STRONG> require a <EM>y</EM> and <EM>x</EM> coordinate to move to
before performing the appropriate action. The <STRONG>mv</STRONG> routines imply a call
to <STRONG>move</STRONG> before the call to the other routine. The coordinate <EM>y</EM> always
refers to the row (of the window), and <EM>x</EM> always refers to the column.
The upper left-hand corner is always (0,0), not (1,1).
The routines prefixed with <STRONG>mvw</STRONG> take both a window argument and <EM>x</EM> and <EM>y</EM>
coordinates. The window argument is always specified before the coor-
dinates.
In each case, <EM>win</EM> is the window affected, and <EM>pad</EM> is the pad affected;
<EM>win</EM> and <EM>pad</EM> are always pointers to type <STRONG>WINDOW</STRONG>.
Option setting routines require a Boolean flag <EM>bf</EM> with the value <STRONG>TRUE</STRONG>
or <STRONG>FALSE</STRONG>; <EM>bf</EM> is always of type <STRONG>bool</STRONG>. Most of the data types used in
the library routines, such as <STRONG>WINDOW</STRONG>, <STRONG>SCREEN</STRONG>, <STRONG>bool</STRONG>, and <STRONG>chtype</STRONG> are
defined in <STRONG><curses.h></STRONG>. Types used for the terminfo routines such as
<STRONG>TERMINAL</STRONG> are defined in <STRONG><term.h></STRONG>.
This manual page describes functions which may appear in any configura-
tion of the library. There are two common configurations of the
library:
<EM>ncurses</EM>
the "normal" library, which handles 8-bit characters. The nor-
mal (8-bit) library stores characters combined with attributes
in <STRONG>chtype</STRONG> data.
Attributes alone (no corresponding character) may be stored in
<STRONG>chtype</STRONG> or the equivalent <STRONG>attr_t</STRONG> data. In either case, the data
is stored in something like an integer.
Each cell (row and column) in a <STRONG>WINDOW</STRONG> is stored as a <STRONG>chtype</STRONG>.
<EM>ncursesw</EM>
the so-called "wide" library, which handles multibyte charac-
ters (see the section on <STRONG>ALTERNATE</STRONG> <STRONG>CONFIGURATIONS</STRONG>). The "wide"
library includes all of the calls from the "normal" library.
It adds about one third more calls using data types which store
multibyte characters:
<STRONG>cchar_t</STRONG>
corresponds to <STRONG>chtype</STRONG>. However it is a structure, because
more data is stored than can fit into an integer. The
characters are large enough to require a full integer
value - and there may be more than one character per cell.
The video attributes and color are stored in separate
fields of the structure.
Each cell (row and column) in a <STRONG>WINDOW</STRONG> is stored as a
<STRONG>cchar_t</STRONG>.
The <STRONG><A HREF="setcchar.3x.html">setcchar(3x)</A></STRONG> and <STRONG><A HREF="getcchar.3x.html">getcchar(3x)</A></STRONG> functions store and
retrieve the data from a <STRONG>cchar_t</STRONG> structure.
<STRONG>wchar_t</STRONG>
stores a "wide" character. Like <STRONG>chtype</STRONG>, this may be an
integer.
<STRONG>wint_t</STRONG>
stores a <STRONG>wchar_t</STRONG> or <STRONG>WEOF</STRONG> - not the same, though both may
have the same size.
The "wide" library provides new functions which are analogous
to functions in the "normal" library. There is a naming con-
vention which relates many of the normal/wide variants: a "_w"
is inserted into the name. For example, <STRONG>waddch</STRONG> becomes
<STRONG>wadd_wch</STRONG>.
</PRE><H3><a name="h3-Routine-Name-Index">Routine Name Index</a></H3><PRE>
The following table lists each <STRONG>curses</STRONG> routine and the name of the man-
ual page on which it is described. Routines flagged with "*" are
ncurses-specific, not described by XPG4 or present in SVr4.
<STRONG>curses</STRONG> Routine Name Manual Page Name
---------------------------------------------
COLOR_PAIR <STRONG><A HREF="curs_color.3x.html">curs_color(3x)</A></STRONG>
PAIR_NUMBER <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
_nc_free_and_exit <STRONG><A HREF="curs_memleaks.3x.html">curs_memleaks(3x)</A></STRONG>*
_nc_freeall <STRONG><A HREF="curs_memleaks.3x.html">curs_memleaks(3x)</A></STRONG>*
_nc_tracebits <STRONG><A HREF="curs_trace.3x.html">curs_trace(3x)</A></STRONG>*
_traceattr <STRONG><A HREF="curs_trace.3x.html">curs_trace(3x)</A></STRONG>*
_traceattr2 <STRONG><A HREF="curs_trace.3x.html">curs_trace(3x)</A></STRONG>*
_tracechar <STRONG><A HREF="curs_trace.3x.html">curs_trace(3x)</A></STRONG>*
_tracechtype <STRONG><A HREF="curs_trace.3x.html">curs_trace(3x)</A></STRONG>*
_tracechtype2 <STRONG><A HREF="curs_trace.3x.html">curs_trace(3x)</A></STRONG>*
_tracedump <STRONG><A HREF="curs_trace.3x.html">curs_trace(3x)</A></STRONG>*
_tracef <STRONG><A HREF="curs_trace.3x.html">curs_trace(3x)</A></STRONG>*
_tracemouse <STRONG><A HREF="curs_trace.3x.html">curs_trace(3x)</A></STRONG>*
add_wch <STRONG><A HREF="curs_add_wch.3x.html">curs_add_wch(3x)</A></STRONG>
add_wchnstr <STRONG><A HREF="curs_add_wchstr.3x.html">curs_add_wchstr(3x)</A></STRONG>
add_wchstr <STRONG><A HREF="curs_add_wchstr.3x.html">curs_add_wchstr(3x)</A></STRONG>
addch <STRONG><A HREF="curs_addch.3x.html">curs_addch(3x)</A></STRONG>
addchnstr <STRONG><A HREF="curs_addchstr.3x.html">curs_addchstr(3x)</A></STRONG>
addchstr <STRONG><A HREF="curs_addchstr.3x.html">curs_addchstr(3x)</A></STRONG>
addnstr <STRONG><A HREF="curs_addstr.3x.html">curs_addstr(3x)</A></STRONG>
addnwstr <STRONG><A HREF="curs_addwstr.3x.html">curs_addwstr(3x)</A></STRONG>
addstr <STRONG><A HREF="curs_addstr.3x.html">curs_addstr(3x)</A></STRONG>
addwstr <STRONG><A HREF="curs_addwstr.3x.html">curs_addwstr(3x)</A></STRONG>
alloc_pair <STRONG><A HREF="new_pair.3x.html">new_pair(3x)</A></STRONG>*
assume_default_colors <STRONG><A HREF="default_colors.3x.html">default_colors(3x)</A></STRONG>*
attr_get <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
attr_off <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
attr_on <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
attr_set <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
attroff <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
attron <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
attrset <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
baudrate <STRONG><A HREF="curs_termattrs.3x.html">curs_termattrs(3x)</A></STRONG>
beep <STRONG><A HREF="curs_beep.3x.html">curs_beep(3x)</A></STRONG>
bkgd <STRONG><A HREF="curs_bkgd.3x.html">curs_bkgd(3x)</A></STRONG>
bkgdset <STRONG><A HREF="curs_bkgd.3x.html">curs_bkgd(3x)</A></STRONG>
bkgrnd <STRONG><A HREF="curs_bkgrnd.3x.html">curs_bkgrnd(3x)</A></STRONG>
bkgrndset <STRONG><A HREF="curs_bkgrnd.3x.html">curs_bkgrnd(3x)</A></STRONG>
border <STRONG><A HREF="curs_border.3x.html">curs_border(3x)</A></STRONG>
border_set <STRONG><A HREF="curs_border_set.3x.html">curs_border_set(3x)</A></STRONG>
box <STRONG><A HREF="curs_border.3x.html">curs_border(3x)</A></STRONG>
box_set <STRONG><A HREF="curs_border_set.3x.html">curs_border_set(3x)</A></STRONG>
can_change_color <STRONG><A HREF="curs_color.3x.html">curs_color(3x)</A></STRONG>
cbreak <STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG>
chgat <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
clear <STRONG><A HREF="curs_clear.3x.html">curs_clear(3x)</A></STRONG>
clearok <STRONG><A HREF="curs_outopts.3x.html">curs_outopts(3x)</A></STRONG>
clrtobot <STRONG><A HREF="curs_clear.3x.html">curs_clear(3x)</A></STRONG>
clrtoeol <STRONG><A HREF="curs_clear.3x.html">curs_clear(3x)</A></STRONG>
color_content <STRONG><A HREF="curs_color.3x.html">curs_color(3x)</A></STRONG>
color_set <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
copywin <STRONG><A HREF="curs_overlay.3x.html">curs_overlay(3x)</A></STRONG>
curs_set <STRONG><A HREF="curs_kernel.3x.html">curs_kernel(3x)</A></STRONG>
curses_version <STRONG><A HREF="curs_extend.3x.html">curs_extend(3x)</A></STRONG>*
def_prog_mode <STRONG><A HREF="curs_kernel.3x.html">curs_kernel(3x)</A></STRONG>
def_shell_mode <STRONG><A HREF="curs_kernel.3x.html">curs_kernel(3x)</A></STRONG>
define_key <STRONG><A HREF="define_key.3x.html">define_key(3x)</A></STRONG>*
del_curterm <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG>
delay_output <STRONG><A HREF="curs_util.3x.html">curs_util(3x)</A></STRONG>
delch <STRONG><A HREF="curs_delch.3x.html">curs_delch(3x)</A></STRONG>
deleteln <STRONG><A HREF="curs_deleteln.3x.html">curs_deleteln(3x)</A></STRONG>
delscreen <STRONG><A HREF="curs_initscr.3x.html">curs_initscr(3x)</A></STRONG>
delwin <STRONG><A HREF="curs_window.3x.html">curs_window(3x)</A></STRONG>
derwin <STRONG><A HREF="curs_window.3x.html">curs_window(3x)</A></STRONG>
doupdate <STRONG><A HREF="curs_refresh.3x.html">curs_refresh(3x)</A></STRONG>
dupwin <STRONG><A HREF="curs_window.3x.html">curs_window(3x)</A></STRONG>
echo <STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG>
echo_wchar <STRONG><A HREF="curs_add_wch.3x.html">curs_add_wch(3x)</A></STRONG>
echochar <STRONG><A HREF="curs_addch.3x.html">curs_addch(3x)</A></STRONG>
endwin <STRONG><A HREF="curs_initscr.3x.html">curs_initscr(3x)</A></STRONG>
erase <STRONG><A HREF="curs_clear.3x.html">curs_clear(3x)</A></STRONG>
erasechar <STRONG><A HREF="curs_termattrs.3x.html">curs_termattrs(3x)</A></STRONG>
erasewchar <STRONG><A HREF="curs_termattrs.3x.html">curs_termattrs(3x)</A></STRONG>
extended_color_content <STRONG><A HREF="curs_color.3x.html">curs_color(3x)</A></STRONG>*
extended_pair_content <STRONG><A HREF="curs_color.3x.html">curs_color(3x)</A></STRONG>*
extended_slk_color <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>*
filter <STRONG><A HREF="curs_util.3x.html">curs_util(3x)</A></STRONG>
find_pair <STRONG><A HREF="new_pair.3x.html">new_pair(3x)</A></STRONG>*
flash <STRONG><A HREF="curs_beep.3x.html">curs_beep(3x)</A></STRONG>
flushinp <STRONG><A HREF="curs_util.3x.html">curs_util(3x)</A></STRONG>
free_pair <STRONG><A HREF="new_pair.3x.html">new_pair(3x)</A></STRONG>*
get_wch <STRONG><A HREF="curs_get_wch.3x.html">curs_get_wch(3x)</A></STRONG>
get_wstr <STRONG><A HREF="curs_get_wstr.3x.html">curs_get_wstr(3x)</A></STRONG>
getattrs <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
getbegx <STRONG><A HREF="curs_legacy.3x.html">curs_legacy(3x)</A></STRONG>*
getbegy <STRONG><A HREF="curs_legacy.3x.html">curs_legacy(3x)</A></STRONG>*
getbegyx <STRONG><A HREF="curs_getyx.3x.html">curs_getyx(3x)</A></STRONG>
getbkgd <STRONG><A HREF="curs_bkgd.3x.html">curs_bkgd(3x)</A></STRONG>
getbkgrnd <STRONG><A HREF="curs_bkgrnd.3x.html">curs_bkgrnd(3x)</A></STRONG>
getcchar <STRONG><A HREF="curs_getcchar.3x.html">curs_getcchar(3x)</A></STRONG>
getch <STRONG><A HREF="curs_getch.3x.html">curs_getch(3x)</A></STRONG>
getcurx <STRONG><A HREF="curs_legacy.3x.html">curs_legacy(3x)</A></STRONG>*
getcury <STRONG><A HREF="curs_legacy.3x.html">curs_legacy(3x)</A></STRONG>*
getmaxx <STRONG><A HREF="curs_legacy.3x.html">curs_legacy(3x)</A></STRONG>*
getmaxy <STRONG><A HREF="curs_legacy.3x.html">curs_legacy(3x)</A></STRONG>*
getmaxyx <STRONG><A HREF="curs_getyx.3x.html">curs_getyx(3x)</A></STRONG>
getmouse <STRONG><A HREF="curs_mouse.3x.html">curs_mouse(3x)</A></STRONG>*
getn_wstr <STRONG><A HREF="curs_get_wstr.3x.html">curs_get_wstr(3x)</A></STRONG>
getnstr <STRONG><A HREF="curs_getstr.3x.html">curs_getstr(3x)</A></STRONG>
getparx <STRONG><A HREF="curs_legacy.3x.html">curs_legacy(3x)</A></STRONG>*
getpary <STRONG><A HREF="curs_legacy.3x.html">curs_legacy(3x)</A></STRONG>*
getparyx <STRONG><A HREF="curs_getyx.3x.html">curs_getyx(3x)</A></STRONG>
getstr <STRONG><A HREF="curs_getstr.3x.html">curs_getstr(3x)</A></STRONG>
getsyx <STRONG><A HREF="curs_kernel.3x.html">curs_kernel(3x)</A></STRONG>
getwin <STRONG><A HREF="curs_util.3x.html">curs_util(3x)</A></STRONG>
getyx <STRONG><A HREF="curs_getyx.3x.html">curs_getyx(3x)</A></STRONG>
halfdelay <STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG>
has_colors <STRONG><A HREF="curs_color.3x.html">curs_color(3x)</A></STRONG>
has_ic <STRONG><A HREF="curs_termattrs.3x.html">curs_termattrs(3x)</A></STRONG>
has_il <STRONG><A HREF="curs_termattrs.3x.html">curs_termattrs(3x)</A></STRONG>
has_key <STRONG><A HREF="curs_getch.3x.html">curs_getch(3x)</A></STRONG>*
hline <STRONG><A HREF="curs_border.3x.html">curs_border(3x)</A></STRONG>
hline_set <STRONG><A HREF="curs_border_set.3x.html">curs_border_set(3x)</A></STRONG>
idcok <STRONG><A HREF="curs_outopts.3x.html">curs_outopts(3x)</A></STRONG>
idlok <STRONG><A HREF="curs_outopts.3x.html">curs_outopts(3x)</A></STRONG>
immedok <STRONG><A HREF="curs_outopts.3x.html">curs_outopts(3x)</A></STRONG>
in_wch <STRONG><A HREF="curs_in_wch.3x.html">curs_in_wch(3x)</A></STRONG>
in_wchnstr <STRONG><A HREF="curs_in_wchstr.3x.html">curs_in_wchstr(3x)</A></STRONG>
in_wchstr <STRONG><A HREF="curs_in_wchstr.3x.html">curs_in_wchstr(3x)</A></STRONG>
inch <STRONG><A HREF="curs_inch.3x.html">curs_inch(3x)</A></STRONG>
inchnstr <STRONG><A HREF="curs_inchstr.3x.html">curs_inchstr(3x)</A></STRONG>
inchstr <STRONG><A HREF="curs_inchstr.3x.html">curs_inchstr(3x)</A></STRONG>
init_color <STRONG><A HREF="curs_color.3x.html">curs_color(3x)</A></STRONG>
init_extended_color <STRONG><A HREF="curs_color.3x.html">curs_color(3x)</A></STRONG>*
init_extended_pair <STRONG><A HREF="curs_color.3x.html">curs_color(3x)</A></STRONG>*
init_pair <STRONG><A HREF="curs_color.3x.html">curs_color(3x)</A></STRONG>
initscr <STRONG><A HREF="curs_initscr.3x.html">curs_initscr(3x)</A></STRONG>
innstr <STRONG><A HREF="curs_instr.3x.html">curs_instr(3x)</A></STRONG>
innwstr <STRONG><A HREF="curs_inwstr.3x.html">curs_inwstr(3x)</A></STRONG>
ins_nwstr <STRONG><A HREF="curs_ins_wstr.3x.html">curs_ins_wstr(3x)</A></STRONG>
ins_wch <STRONG><A HREF="curs_ins_wch.3x.html">curs_ins_wch(3x)</A></STRONG>
ins_wstr <STRONG><A HREF="curs_ins_wstr.3x.html">curs_ins_wstr(3x)</A></STRONG>
insch <STRONG><A HREF="curs_insch.3x.html">curs_insch(3x)</A></STRONG>
insdelln <STRONG><A HREF="curs_deleteln.3x.html">curs_deleteln(3x)</A></STRONG>
insertln <STRONG><A HREF="curs_deleteln.3x.html">curs_deleteln(3x)</A></STRONG>
insnstr <STRONG><A HREF="curs_insstr.3x.html">curs_insstr(3x)</A></STRONG>
insstr <STRONG><A HREF="curs_insstr.3x.html">curs_insstr(3x)</A></STRONG>
instr <STRONG><A HREF="curs_instr.3x.html">curs_instr(3x)</A></STRONG>
intrflush <STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG>
inwstr <STRONG><A HREF="curs_inwstr.3x.html">curs_inwstr(3x)</A></STRONG>
is_cleared <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(3x)</A></STRONG>*
is_idcok <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(3x)</A></STRONG>*
is_idlok <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(3x)</A></STRONG>*
is_immedok <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(3x)</A></STRONG>*
is_keypad <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(3x)</A></STRONG>*
is_leaveok <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(3x)</A></STRONG>*
is_linetouched <STRONG><A HREF="curs_touch.3x.html">curs_touch(3x)</A></STRONG>
is_nodelay <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(3x)</A></STRONG>*
is_notimeout <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(3x)</A></STRONG>*
is_pad <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(3x)</A></STRONG>*
is_scrollok <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(3x)</A></STRONG>*
is_subwin <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(3x)</A></STRONG>*
is_syncok <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(3x)</A></STRONG>*
is_term_resized <STRONG><A HREF="resizeterm.3x.html">resizeterm(3x)</A></STRONG>*
is_wintouched <STRONG><A HREF="curs_touch.3x.html">curs_touch(3x)</A></STRONG>
isendwin <STRONG><A HREF="curs_initscr.3x.html">curs_initscr(3x)</A></STRONG>
key_defined <STRONG><A HREF="key_defined.3x.html">key_defined(3x)</A></STRONG>*
key_name <STRONG><A HREF="curs_util.3x.html">curs_util(3x)</A></STRONG>
keybound <STRONG><A HREF="keybound.3x.html">keybound(3x)</A></STRONG>*
keyname <STRONG><A HREF="curs_util.3x.html">curs_util(3x)</A></STRONG>
keyok <STRONG><A HREF="keyok.3x.html">keyok(3x)</A></STRONG>*
keypad <STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG>
killchar <STRONG><A HREF="curs_termattrs.3x.html">curs_termattrs(3x)</A></STRONG>
killwchar <STRONG><A HREF="curs_termattrs.3x.html">curs_termattrs(3x)</A></STRONG>
leaveok <STRONG><A HREF="curs_outopts.3x.html">curs_outopts(3x)</A></STRONG>
longname <STRONG><A HREF="curs_termattrs.3x.html">curs_termattrs(3x)</A></STRONG>
mcprint <STRONG><A HREF="curs_print.3x.html">curs_print(3x)</A></STRONG>*
meta <STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG>
mouse_trafo <STRONG><A HREF="curs_mouse.3x.html">curs_mouse(3x)</A></STRONG>*
mouseinterval <STRONG><A HREF="curs_mouse.3x.html">curs_mouse(3x)</A></STRONG>*
mousemask <STRONG><A HREF="curs_mouse.3x.html">curs_mouse(3x)</A></STRONG>*
move <STRONG><A HREF="curs_move.3x.html">curs_move(3x)</A></STRONG>
mvadd_wch <STRONG><A HREF="curs_add_wch.3x.html">curs_add_wch(3x)</A></STRONG>
mvadd_wchnstr <STRONG><A HREF="curs_add_wchstr.3x.html">curs_add_wchstr(3x)</A></STRONG>
mvadd_wchstr <STRONG><A HREF="curs_add_wchstr.3x.html">curs_add_wchstr(3x)</A></STRONG>
mvaddch <STRONG><A HREF="curs_addch.3x.html">curs_addch(3x)</A></STRONG>
mvaddchnstr <STRONG><A HREF="curs_addchstr.3x.html">curs_addchstr(3x)</A></STRONG>
mvaddchstr <STRONG><A HREF="curs_addchstr.3x.html">curs_addchstr(3x)</A></STRONG>
mvaddnstr <STRONG><A HREF="curs_addstr.3x.html">curs_addstr(3x)</A></STRONG>
mvaddnwstr <STRONG><A HREF="curs_addwstr.3x.html">curs_addwstr(3x)</A></STRONG>
mvaddstr <STRONG><A HREF="curs_addstr.3x.html">curs_addstr(3x)</A></STRONG>
mvaddwstr <STRONG><A HREF="curs_addwstr.3x.html">curs_addwstr(3x)</A></STRONG>
mvchgat <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
mvcur <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG>
mvdelch <STRONG><A HREF="curs_delch.3x.html">curs_delch(3x)</A></STRONG>
mvderwin <STRONG><A HREF="curs_window.3x.html">curs_window(3x)</A></STRONG>
mvget_wch <STRONG><A HREF="curs_get_wch.3x.html">curs_get_wch(3x)</A></STRONG>
mvget_wstr <STRONG><A HREF="curs_get_wstr.3x.html">curs_get_wstr(3x)</A></STRONG>
mvgetch <STRONG><A HREF="curs_getch.3x.html">curs_getch(3x)</A></STRONG>
mvgetn_wstr <STRONG><A HREF="curs_get_wstr.3x.html">curs_get_wstr(3x)</A></STRONG>
mvgetnstr <STRONG><A HREF="curs_getstr.3x.html">curs_getstr(3x)</A></STRONG>
mvgetstr <STRONG><A HREF="curs_getstr.3x.html">curs_getstr(3x)</A></STRONG>
mvhline <STRONG><A HREF="curs_border.3x.html">curs_border(3x)</A></STRONG>
mvhline_set <STRONG><A HREF="curs_border_set.3x.html">curs_border_set(3x)</A></STRONG>
mvin_wch <STRONG><A HREF="curs_in_wch.3x.html">curs_in_wch(3x)</A></STRONG>
mvin_wchnstr <STRONG><A HREF="curs_in_wchstr.3x.html">curs_in_wchstr(3x)</A></STRONG>
mvin_wchstr <STRONG><A HREF="curs_in_wchstr.3x.html">curs_in_wchstr(3x)</A></STRONG>
mvinch <STRONG><A HREF="curs_inch.3x.html">curs_inch(3x)</A></STRONG>
mvinchnstr <STRONG><A HREF="curs_inchstr.3x.html">curs_inchstr(3x)</A></STRONG>
mvinchstr <STRONG><A HREF="curs_inchstr.3x.html">curs_inchstr(3x)</A></STRONG>
mvinnstr <STRONG><A HREF="curs_instr.3x.html">curs_instr(3x)</A></STRONG>
mvinnwstr <STRONG><A HREF="curs_inwstr.3x.html">curs_inwstr(3x)</A></STRONG>
mvins_nwstr <STRONG><A HREF="curs_ins_wstr.3x.html">curs_ins_wstr(3x)</A></STRONG>
mvins_wch <STRONG><A HREF="curs_ins_wch.3x.html">curs_ins_wch(3x)</A></STRONG>
mvins_wstr <STRONG><A HREF="curs_ins_wstr.3x.html">curs_ins_wstr(3x)</A></STRONG>
mvinsch <STRONG><A HREF="curs_insch.3x.html">curs_insch(3x)</A></STRONG>
mvinsnstr <STRONG><A HREF="curs_insstr.3x.html">curs_insstr(3x)</A></STRONG>
mvinsstr <STRONG><A HREF="curs_insstr.3x.html">curs_insstr(3x)</A></STRONG>
mvinstr <STRONG><A HREF="curs_instr.3x.html">curs_instr(3x)</A></STRONG>
mvinwstr <STRONG><A HREF="curs_inwstr.3x.html">curs_inwstr(3x)</A></STRONG>
mvprintw <STRONG><A HREF="curs_printw.3x.html">curs_printw(3x)</A></STRONG>
mvscanw <STRONG><A HREF="curs_scanw.3x.html">curs_scanw(3x)</A></STRONG>
mvvline <STRONG><A HREF="curs_border.3x.html">curs_border(3x)</A></STRONG>
mvvline_set <STRONG><A HREF="curs_border_set.3x.html">curs_border_set(3x)</A></STRONG>
mvwadd_wch <STRONG><A HREF="curs_add_wch.3x.html">curs_add_wch(3x)</A></STRONG>
mvwadd_wchnstr <STRONG><A HREF="curs_add_wchstr.3x.html">curs_add_wchstr(3x)</A></STRONG>
mvwadd_wchstr <STRONG><A HREF="curs_add_wchstr.3x.html">curs_add_wchstr(3x)</A></STRONG>
mvwaddch <STRONG><A HREF="curs_addch.3x.html">curs_addch(3x)</A></STRONG>
mvwaddchnstr <STRONG><A HREF="curs_addchstr.3x.html">curs_addchstr(3x)</A></STRONG>
mvwaddchstr <STRONG><A HREF="curs_addchstr.3x.html">curs_addchstr(3x)</A></STRONG>
mvwaddnstr <STRONG><A HREF="curs_addstr.3x.html">curs_addstr(3x)</A></STRONG>
mvwaddnwstr <STRONG><A HREF="curs_addwstr.3x.html">curs_addwstr(3x)</A></STRONG>
mvwaddstr <STRONG><A HREF="curs_addstr.3x.html">curs_addstr(3x)</A></STRONG>
mvwaddwstr <STRONG><A HREF="curs_addwstr.3x.html">curs_addwstr(3x)</A></STRONG>
mvwchgat <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
mvwdelch <STRONG><A HREF="curs_delch.3x.html">curs_delch(3x)</A></STRONG>
mvwget_wch <STRONG><A HREF="curs_get_wch.3x.html">curs_get_wch(3x)</A></STRONG>
mvwget_wstr <STRONG><A HREF="curs_get_wstr.3x.html">curs_get_wstr(3x)</A></STRONG>
mvwgetch <STRONG><A HREF="curs_getch.3x.html">curs_getch(3x)</A></STRONG>
mvwgetn_wstr <STRONG><A HREF="curs_get_wstr.3x.html">curs_get_wstr(3x)</A></STRONG>
mvwgetnstr <STRONG><A HREF="curs_getstr.3x.html">curs_getstr(3x)</A></STRONG>
mvwgetstr <STRONG><A HREF="curs_getstr.3x.html">curs_getstr(3x)</A></STRONG>
mvwhline <STRONG><A HREF="curs_border.3x.html">curs_border(3x)</A></STRONG>
mvwhline_set <STRONG><A HREF="curs_border_set.3x.html">curs_border_set(3x)</A></STRONG>
mvwin <STRONG><A HREF="curs_window.3x.html">curs_window(3x)</A></STRONG>
mvwin_wch <STRONG><A HREF="curs_in_wch.3x.html">curs_in_wch(3x)</A></STRONG>
mvwin_wchnstr <STRONG><A HREF="curs_in_wchstr.3x.html">curs_in_wchstr(3x)</A></STRONG>
mvwin_wchstr <STRONG><A HREF="curs_in_wchstr.3x.html">curs_in_wchstr(3x)</A></STRONG>
mvwinch <STRONG><A HREF="curs_inch.3x.html">curs_inch(3x)</A></STRONG>
mvwinchnstr <STRONG><A HREF="curs_inchstr.3x.html">curs_inchstr(3x)</A></STRONG>
mvwinchstr <STRONG><A HREF="curs_inchstr.3x.html">curs_inchstr(3x)</A></STRONG>
mvwinnstr <STRONG><A HREF="curs_instr.3x.html">curs_instr(3x)</A></STRONG>
mvwinnwstr <STRONG><A HREF="curs_inwstr.3x.html">curs_inwstr(3x)</A></STRONG>
mvwins_nwstr <STRONG><A HREF="curs_ins_wstr.3x.html">curs_ins_wstr(3x)</A></STRONG>
mvwins_wch <STRONG><A HREF="curs_ins_wch.3x.html">curs_ins_wch(3x)</A></STRONG>
mvwins_wstr <STRONG><A HREF="curs_ins_wstr.3x.html">curs_ins_wstr(3x)</A></STRONG>
mvwinsch <STRONG><A HREF="curs_insch.3x.html">curs_insch(3x)</A></STRONG>
mvwinsnstr <STRONG><A HREF="curs_insstr.3x.html">curs_insstr(3x)</A></STRONG>
mvwinsstr <STRONG><A HREF="curs_insstr.3x.html">curs_insstr(3x)</A></STRONG>
mvwinstr <STRONG><A HREF="curs_instr.3x.html">curs_instr(3x)</A></STRONG>
mvwinwstr <STRONG><A HREF="curs_inwstr.3x.html">curs_inwstr(3x)</A></STRONG>
mvwprintw <STRONG><A HREF="curs_printw.3x.html">curs_printw(3x)</A></STRONG>
mvwscanw <STRONG><A HREF="curs_scanw.3x.html">curs_scanw(3x)</A></STRONG>
mvwvline <STRONG><A HREF="curs_border.3x.html">curs_border(3x)</A></STRONG>
mvwvline_set <STRONG><A HREF="curs_border_set.3x.html">curs_border_set(3x)</A></STRONG>
napms <STRONG><A HREF="curs_kernel.3x.html">curs_kernel(3x)</A></STRONG>
newpad <STRONG><A HREF="curs_pad.3x.html">curs_pad(3x)</A></STRONG>
newterm <STRONG><A HREF="curs_initscr.3x.html">curs_initscr(3x)</A></STRONG>
newwin <STRONG><A HREF="curs_window.3x.html">curs_window(3x)</A></STRONG>
nl <STRONG><A HREF="curs_outopts.3x.html">curs_outopts(3x)</A></STRONG>
nocbreak <STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG>
nodelay <STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG>
noecho <STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG>
nofilter <STRONG><A HREF="curs_util.3x.html">curs_util(3x)</A></STRONG>*
nonl <STRONG><A HREF="curs_outopts.3x.html">curs_outopts(3x)</A></STRONG>
noqiflush <STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG>
noraw <STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG>
notimeout <STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG>
overlay <STRONG><A HREF="curs_overlay.3x.html">curs_overlay(3x)</A></STRONG>
overwrite <STRONG><A HREF="curs_overlay.3x.html">curs_overlay(3x)</A></STRONG>
pair_content <STRONG><A HREF="curs_color.3x.html">curs_color(3x)</A></STRONG>
pechochar <STRONG><A HREF="curs_pad.3x.html">curs_pad(3x)</A></STRONG>
pnoutrefresh <STRONG><A HREF="curs_pad.3x.html">curs_pad(3x)</A></STRONG>
prefresh <STRONG><A HREF="curs_pad.3x.html">curs_pad(3x)</A></STRONG>
printw <STRONG><A HREF="curs_printw.3x.html">curs_printw(3x)</A></STRONG>
putp <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG>
putwin <STRONG><A HREF="curs_util.3x.html">curs_util(3x)</A></STRONG>
qiflush <STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG>
raw <STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG>
redrawwin <STRONG><A HREF="curs_refresh.3x.html">curs_refresh(3x)</A></STRONG>
refresh <STRONG><A HREF="curs_refresh.3x.html">curs_refresh(3x)</A></STRONG>
reset_prog_mode <STRONG><A HREF="curs_kernel.3x.html">curs_kernel(3x)</A></STRONG>
reset_shell_mode <STRONG><A HREF="curs_kernel.3x.html">curs_kernel(3x)</A></STRONG>
resetty <STRONG><A HREF="curs_kernel.3x.html">curs_kernel(3x)</A></STRONG>
resize_term <STRONG><A HREF="resizeterm.3x.html">resizeterm(3x)</A></STRONG>*
resizeterm <STRONG><A HREF="resizeterm.3x.html">resizeterm(3x)</A></STRONG>*
restartterm <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG>
ripoffline <STRONG><A HREF="curs_kernel.3x.html">curs_kernel(3x)</A></STRONG>
savetty <STRONG><A HREF="curs_kernel.3x.html">curs_kernel(3x)</A></STRONG>
scanw <STRONG><A HREF="curs_scanw.3x.html">curs_scanw(3x)</A></STRONG>
scr_dump <STRONG><A HREF="curs_scr_dump.3x.html">curs_scr_dump(3x)</A></STRONG>
scr_init <STRONG><A HREF="curs_scr_dump.3x.html">curs_scr_dump(3x)</A></STRONG>
scr_restore <STRONG><A HREF="curs_scr_dump.3x.html">curs_scr_dump(3x)</A></STRONG>
scr_set <STRONG><A HREF="curs_scr_dump.3x.html">curs_scr_dump(3x)</A></STRONG>
scrl <STRONG><A HREF="curs_scroll.3x.html">curs_scroll(3x)</A></STRONG>
scroll <STRONG><A HREF="curs_scroll.3x.html">curs_scroll(3x)</A></STRONG>
scrollok <STRONG><A HREF="curs_outopts.3x.html">curs_outopts(3x)</A></STRONG>
set_curterm <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG>
set_term <STRONG><A HREF="curs_initscr.3x.html">curs_initscr(3x)</A></STRONG>
setcchar <STRONG><A HREF="curs_getcchar.3x.html">curs_getcchar(3x)</A></STRONG>
setscrreg <STRONG><A HREF="curs_outopts.3x.html">curs_outopts(3x)</A></STRONG>
setsyx <STRONG><A HREF="curs_kernel.3x.html">curs_kernel(3x)</A></STRONG>
setterm <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG>
setupterm <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG>
slk_attr <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>*
slk_attr_off <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>
slk_attr_on <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>
slk_attr_set <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>
slk_attroff <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>
slk_attron <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>
slk_attrset <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>
slk_clear <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>
slk_color <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>
slk_init <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>
slk_label <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>
slk_noutrefresh <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>
slk_refresh <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>
slk_restore <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>
slk_set <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>
slk_touch <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>
standend <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
standout <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
start_color <STRONG><A HREF="curs_color.3x.html">curs_color(3x)</A></STRONG>
subpad <STRONG><A HREF="curs_pad.3x.html">curs_pad(3x)</A></STRONG>
subwin <STRONG><A HREF="curs_window.3x.html">curs_window(3x)</A></STRONG>
syncok <STRONG><A HREF="curs_window.3x.html">curs_window(3x)</A></STRONG>
term_attrs <STRONG><A HREF="curs_termattrs.3x.html">curs_termattrs(3x)</A></STRONG>
termattrs <STRONG><A HREF="curs_termattrs.3x.html">curs_termattrs(3x)</A></STRONG>
termname <STRONG><A HREF="curs_termattrs.3x.html">curs_termattrs(3x)</A></STRONG>
tgetent <STRONG><A HREF="curs_termcap.3x.html">curs_termcap(3x)</A></STRONG>
tgetflag <STRONG><A HREF="curs_termcap.3x.html">curs_termcap(3x)</A></STRONG>
tgetnum <STRONG><A HREF="curs_termcap.3x.html">curs_termcap(3x)</A></STRONG>
tgetstr <STRONG><A HREF="curs_termcap.3x.html">curs_termcap(3x)</A></STRONG>
tgoto <STRONG><A HREF="curs_termcap.3x.html">curs_termcap(3x)</A></STRONG>
tigetflag <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG>
tigetnum <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG>
tigetstr <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG>
timeout <STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG>
tiparm <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG>*
touchline <STRONG><A HREF="curs_touch.3x.html">curs_touch(3x)</A></STRONG>
touchwin <STRONG><A HREF="curs_touch.3x.html">curs_touch(3x)</A></STRONG>
tparm <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG>
tputs <STRONG><A HREF="curs_termcap.3x.html">curs_termcap(3x)</A></STRONG>
tputs <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG>
trace <STRONG><A HREF="curs_trace.3x.html">curs_trace(3x)</A></STRONG>*
typeahead <STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG>
unctrl <STRONG><A HREF="curs_util.3x.html">curs_util(3x)</A></STRONG>
unget_wch <STRONG><A HREF="curs_get_wch.3x.html">curs_get_wch(3x)</A></STRONG>
ungetch <STRONG><A HREF="curs_getch.3x.html">curs_getch(3x)</A></STRONG>
ungetmouse <STRONG><A HREF="curs_mouse.3x.html">curs_mouse(3x)</A></STRONG>*
untouchwin <STRONG><A HREF="curs_touch.3x.html">curs_touch(3x)</A></STRONG>
use_default_colors <STRONG><A HREF="default_colors.3x.html">default_colors(3x)</A></STRONG>*
use_env <STRONG><A HREF="curs_util.3x.html">curs_util(3x)</A></STRONG>
use_extended_names <STRONG><A HREF="curs_extend.3x.html">curs_extend(3x)</A></STRONG>*
use_legacy_coding <STRONG><A HREF="legacy_coding.3x.html">legacy_coding(3x)</A></STRONG>*
use_tioctl <STRONG><A HREF="curs_util.3x.html">curs_util(3x)</A></STRONG>*
vid_attr <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG>
vid_puts <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG>
vidattr <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG>
vidputs <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG>
vline <STRONG><A HREF="curs_border.3x.html">curs_border(3x)</A></STRONG>
vline_set <STRONG><A HREF="curs_border_set.3x.html">curs_border_set(3x)</A></STRONG>
vw_printw <STRONG><A HREF="curs_printw.3x.html">curs_printw(3x)</A></STRONG>
vw_scanw <STRONG><A HREF="curs_scanw.3x.html">curs_scanw(3x)</A></STRONG>
vwprintw <STRONG><A HREF="curs_printw.3x.html">curs_printw(3x)</A></STRONG>
vwscanw <STRONG><A HREF="curs_scanw.3x.html">curs_scanw(3x)</A></STRONG>
wadd_wch <STRONG><A HREF="curs_add_wch.3x.html">curs_add_wch(3x)</A></STRONG>
wadd_wchnstr <STRONG><A HREF="curs_add_wchstr.3x.html">curs_add_wchstr(3x)</A></STRONG>
wadd_wchstr <STRONG><A HREF="curs_add_wchstr.3x.html">curs_add_wchstr(3x)</A></STRONG>
waddch <STRONG><A HREF="curs_addch.3x.html">curs_addch(3x)</A></STRONG>
waddchnstr <STRONG><A HREF="curs_addchstr.3x.html">curs_addchstr(3x)</A></STRONG>
waddchstr <STRONG><A HREF="curs_addchstr.3x.html">curs_addchstr(3x)</A></STRONG>
waddnstr <STRONG><A HREF="curs_addstr.3x.html">curs_addstr(3x)</A></STRONG>
waddnwstr <STRONG><A HREF="curs_addwstr.3x.html">curs_addwstr(3x)</A></STRONG>
waddstr <STRONG><A HREF="curs_addstr.3x.html">curs_addstr(3x)</A></STRONG>
waddwstr <STRONG><A HREF="curs_addwstr.3x.html">curs_addwstr(3x)</A></STRONG>
wattr_get <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
wattr_off <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
wattr_on <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
wattr_set <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
wattroff <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
wattron <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
wattrset <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
wbkgd <STRONG><A HREF="curs_bkgd.3x.html">curs_bkgd(3x)</A></STRONG>
wbkgdset <STRONG><A HREF="curs_bkgd.3x.html">curs_bkgd(3x)</A></STRONG>
wbkgrnd <STRONG><A HREF="curs_bkgrnd.3x.html">curs_bkgrnd(3x)</A></STRONG>
wbkgrndset <STRONG><A HREF="curs_bkgrnd.3x.html">curs_bkgrnd(3x)</A></STRONG>
wborder <STRONG><A HREF="curs_border.3x.html">curs_border(3x)</A></STRONG>
wborder_set <STRONG><A HREF="curs_border_set.3x.html">curs_border_set(3x)</A></STRONG>
wchgat <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
wclear <STRONG><A HREF="curs_clear.3x.html">curs_clear(3x)</A></STRONG>
wclrtobot <STRONG><A HREF="curs_clear.3x.html">curs_clear(3x)</A></STRONG>
wclrtoeol <STRONG><A HREF="curs_clear.3x.html">curs_clear(3x)</A></STRONG>
wcolor_set <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
wcursyncup <STRONG><A HREF="curs_window.3x.html">curs_window(3x)</A></STRONG>
wdelch <STRONG><A HREF="curs_delch.3x.html">curs_delch(3x)</A></STRONG>
wdeleteln <STRONG><A HREF="curs_deleteln.3x.html">curs_deleteln(3x)</A></STRONG>
wecho_wchar <STRONG><A HREF="curs_add_wch.3x.html">curs_add_wch(3x)</A></STRONG>
wechochar <STRONG><A HREF="curs_addch.3x.html">curs_addch(3x)</A></STRONG>
wenclose <STRONG><A HREF="curs_mouse.3x.html">curs_mouse(3x)</A></STRONG>*
werase <STRONG><A HREF="curs_clear.3x.html">curs_clear(3x)</A></STRONG>
wget_wch <STRONG><A HREF="curs_get_wch.3x.html">curs_get_wch(3x)</A></STRONG>
wget_wstr <STRONG><A HREF="curs_get_wstr.3x.html">curs_get_wstr(3x)</A></STRONG>
wgetbkgrnd <STRONG><A HREF="curs_bkgrnd.3x.html">curs_bkgrnd(3x)</A></STRONG>
wgetch <STRONG><A HREF="curs_getch.3x.html">curs_getch(3x)</A></STRONG>
wgetdelay <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(3x)</A></STRONG>*
wgetn_wstr <STRONG><A HREF="curs_get_wstr.3x.html">curs_get_wstr(3x)</A></STRONG>
wgetnstr <STRONG><A HREF="curs_getstr.3x.html">curs_getstr(3x)</A></STRONG>
wgetparent <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(3x)</A></STRONG>*
wgetscrreg <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(3x)</A></STRONG>*
wgetstr <STRONG><A HREF="curs_getstr.3x.html">curs_getstr(3x)</A></STRONG>
whline <STRONG><A HREF="curs_border.3x.html">curs_border(3x)</A></STRONG>
whline_set <STRONG><A HREF="curs_border_set.3x.html">curs_border_set(3x)</A></STRONG>
win_wch <STRONG><A HREF="curs_in_wch.3x.html">curs_in_wch(3x)</A></STRONG>
win_wchnstr <STRONG><A HREF="curs_in_wchstr.3x.html">curs_in_wchstr(3x)</A></STRONG>
win_wchstr <STRONG><A HREF="curs_in_wchstr.3x.html">curs_in_wchstr(3x)</A></STRONG>
winch <STRONG><A HREF="curs_inch.3x.html">curs_inch(3x)</A></STRONG>
winchnstr <STRONG><A HREF="curs_inchstr.3x.html">curs_inchstr(3x)</A></STRONG>
winchstr <STRONG><A HREF="curs_inchstr.3x.html">curs_inchstr(3x)</A></STRONG>
winnstr <STRONG><A HREF="curs_instr.3x.html">curs_instr(3x)</A></STRONG>
winnwstr <STRONG><A HREF="curs_inwstr.3x.html">curs_inwstr(3x)</A></STRONG>
wins_nwstr <STRONG><A HREF="curs_ins_wstr.3x.html">curs_ins_wstr(3x)</A></STRONG>
wins_wch <STRONG><A HREF="curs_ins_wch.3x.html">curs_ins_wch(3x)</A></STRONG>
wins_wstr <STRONG><A HREF="curs_ins_wstr.3x.html">curs_ins_wstr(3x)</A></STRONG>
winsch <STRONG><A HREF="curs_insch.3x.html">curs_insch(3x)</A></STRONG>
winsdelln <STRONG><A HREF="curs_deleteln.3x.html">curs_deleteln(3x)</A></STRONG>
winsertln <STRONG><A HREF="curs_deleteln.3x.html">curs_deleteln(3x)</A></STRONG>
winsnstr <STRONG><A HREF="curs_insstr.3x.html">curs_insstr(3x)</A></STRONG>
winsstr <STRONG><A HREF="curs_insstr.3x.html">curs_insstr(3x)</A></STRONG>
winstr <STRONG><A HREF="curs_instr.3x.html">curs_instr(3x)</A></STRONG>
winwstr <STRONG><A HREF="curs_inwstr.3x.html">curs_inwstr(3x)</A></STRONG>
wmouse_trafo <STRONG><A HREF="curs_mouse.3x.html">curs_mouse(3x)</A></STRONG>*
wmove <STRONG><A HREF="curs_move.3x.html">curs_move(3x)</A></STRONG>
wnoutrefresh <STRONG><A HREF="curs_refresh.3x.html">curs_refresh(3x)</A></STRONG>
wprintw <STRONG><A HREF="curs_printw.3x.html">curs_printw(3x)</A></STRONG>
wredrawln <STRONG><A HREF="curs_refresh.3x.html">curs_refresh(3x)</A></STRONG>
wrefresh <STRONG><A HREF="curs_refresh.3x.html">curs_refresh(3x)</A></STRONG>
wresize <STRONG><A HREF="wresize.3x.html">wresize(3x)</A></STRONG>*
wscanw <STRONG><A HREF="curs_scanw.3x.html">curs_scanw(3x)</A></STRONG>
wscrl <STRONG><A HREF="curs_scroll.3x.html">curs_scroll(3x)</A></STRONG>
wsetscrreg <STRONG><A HREF="curs_outopts.3x.html">curs_outopts(3x)</A></STRONG>
wstandend <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
wstandout <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
wsyncdown <STRONG><A HREF="curs_window.3x.html">curs_window(3x)</A></STRONG>
wsyncup <STRONG><A HREF="curs_window.3x.html">curs_window(3x)</A></STRONG>
wtimeout <STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG>
wtouchln <STRONG><A HREF="curs_touch.3x.html">curs_touch(3x)</A></STRONG>
wunctrl <STRONG><A HREF="curs_util.3x.html">curs_util(3x)</A></STRONG>
wvline <STRONG><A HREF="curs_border.3x.html">curs_border(3x)</A></STRONG>
wvline_set <STRONG><A HREF="curs_border_set.3x.html">curs_border_set(3x)</A></STRONG>
</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
Routines that return an integer return <STRONG>ERR</STRONG> upon failure and an integer
value other than <STRONG>ERR</STRONG> upon successful completion, unless otherwise noted
in the routine descriptions.
As a general rule, routines check for null pointers passed as parame-
ters, and handle this as an error.
All macros return the value of the <STRONG>w</STRONG> version, except <STRONG>setscrreg</STRONG>,
<STRONG>wsetscrreg</STRONG>, <STRONG>getyx</STRONG>, <STRONG>getbegyx</STRONG>, and <STRONG>getmaxyx</STRONG>. The return values of
<STRONG>setscrreg</STRONG>, <STRONG>wsetscrreg</STRONG>, <STRONG>getyx</STRONG>, <STRONG>getbegyx</STRONG>, and <STRONG>getmaxyx</STRONG> are undefined
(i.e., these should not be used as the right-hand side of assignment
statements).
Routines that return pointers return <STRONG>NULL</STRONG> on error.
</PRE><H2><a name="h2-ENVIRONMENT">ENVIRONMENT</a></H2><PRE>
The following environment symbols are useful for customizing the run-
time behavior of the <STRONG>ncurses</STRONG> library. The most important ones have
been already discussed in detail.
</PRE><H3><a name="h3-CC-command-character">CC command-character</a></H3><PRE>
When set, change occurrences of the command_character (i.e., the <STRONG>cmdch</STRONG>
capability) of the loaded terminfo entries to the value of this vari-
able. Very few terminfo entries provide this feature.
Because this name is also used in development environments to represent
the C compiler's name, <STRONG>ncurses</STRONG> ignores it if it does not happen to be a
single character.
</PRE><H3><a name="h3-BAUDRATE">BAUDRATE</a></H3><PRE>
The debugging library checks this environment variable when the appli-
cation has redirected output to a file. The variable's numeric value
is used for the baudrate. If no value is found, <STRONG>ncurses</STRONG> uses 9600.
This allows testers to construct repeatable test-cases that take into
account costs that depend on baudrate.
</PRE><H3><a name="h3-COLUMNS">COLUMNS</a></H3><PRE>
Specify the width of the screen in characters. Applications running in
a windowing environment usually are able to obtain the width of the
window in which they are executing. If neither the <STRONG>COLUMNS</STRONG> value nor
the terminal's screen size is available, <STRONG>ncurses</STRONG> uses the size which
may be specified in the terminfo database (i.e., the <STRONG>cols</STRONG> capability).
It is important that your application use a correct size for the
screen. This is not always possible because your application may be
running on a host which does not honor NAWS (Negotiations About Window
Size), or because you are temporarily running as another user. How-
ever, setting <STRONG>COLUMNS</STRONG> and/or <STRONG>LINES</STRONG> overrides the library's use of the
screen size obtained from the operating system.
Either <STRONG>COLUMNS</STRONG> or <STRONG>LINES</STRONG> symbols may be specified independently. This
is mainly useful to circumvent legacy misfeatures of terminal descrip-
tions, e.g., xterm which commonly specifies a 65 line screen. For best
results, <STRONG>lines</STRONG> and <STRONG>cols</STRONG> should not be specified in a terminal descrip-
tion for terminals which are run as emulations.
Use the <STRONG>use_env</STRONG> function to disable all use of external environment
(but not including system calls) to determine the screen size. Use the
<STRONG>use_tioctl</STRONG> function to update <STRONG>COLUMNS</STRONG> or <STRONG>LINES</STRONG> to match the screen size
obtained from system calls or the terminal database.
</PRE><H3><a name="h3-ESCDELAY">ESCDELAY</a></H3><PRE>
Specifies the total time, in milliseconds, for which ncurses will await
a character sequence, e.g., a function key. The default value, 1000
milliseconds, is enough for most uses. However, it is made a variable
to accommodate unusual applications.
The most common instance where you may wish to change this value is to
work with slow hosts, e.g., running on a network. If the host cannot
read characters rapidly enough, it will have the same effect as if the
terminal did not send characters rapidly enough. The library will
still see a timeout.
Note that xterm mouse events are built up from character sequences
received from the xterm. If your application makes heavy use of multi-
ple-clicking, you may wish to lengthen this default value because the
timeout applies to the composed multi-click event as well as the indi-
vidual clicks.
In addition to the environment variable, this implementation provides a
global variable with the same name. Portable applications should not
rely upon the presence of ESCDELAY in either form, but setting the
environment variable rather than the global variable does not create
problems when compiling an application.
</PRE><H3><a name="h3-HOME">HOME</a></H3><PRE>
Tells <STRONG>ncurses</STRONG> where your home directory is. That is where it may read
and write auxiliary terminal descriptions:
$HOME/.termcap
$HOME/.terminfo
</PRE><H3><a name="h3-LINES">LINES</a></H3><PRE>
Like COLUMNS, specify the height of the screen in characters. See COL-
UMNS for a detailed description.
</PRE><H3><a name="h3-MOUSE_BUTTONS_123">MOUSE_BUTTONS_123</a></H3><PRE>
This applies only to the OS/2 EMX port. It specifies the order of but-
tons on the mouse. OS/2 numbers a 3-button mouse inconsistently from
other platforms:
1 = left
2 = right
3 = middle.
This variable lets you customize the mouse. The variable must be three
numeric digits 1-3 in any order, e.g., 123 or 321. If it is not speci-
fied, <STRONG>ncurses</STRONG> uses 132.
</PRE><H3><a name="h3-NCURSES_ASSUMED_COLORS">NCURSES_ASSUMED_COLORS</a></H3><PRE>
Override the compiled-in assumption that the terminal's default colors
are white-on-black (see <STRONG><A HREF="default_colors.3x.html">default_colors(3x)</A></STRONG>). You may set the fore-
ground and background color values with this environment variable by
proving a 2-element list: foreground,background. For example, to tell
ncurses to not assume anything about the colors, set this to "-1,-1".
To make it green-on-black, set it to "2,0". Any positive value from
zero to the terminfo <STRONG>max_colors</STRONG> value is allowed.
</PRE><H3><a name="h3-NCURSES_CONSOLE2">NCURSES_CONSOLE2</a></H3><PRE>
This applies only to the MinGW port of ncurses.
The <STRONG>Console2</STRONG> program's handling of the Microsoft Console API call <STRONG>Cre-</STRONG>
<STRONG>ateConsoleScreenBuffer</STRONG> is defective. Applications which use this will
hang. However, it is possible to simulate the action of this call by
mapping coordinates, explicitly saving and restoring the original
screen contents. Setting the environment variable <STRONG>NCGDB</STRONG> has the same
effect.
</PRE><H3><a name="h3-NCURSES_GPM_TERMS">NCURSES_GPM_TERMS</a></H3><PRE>
This applies only to ncurses configured to use the GPM interface.
If present, the environment variable is a list of one or more terminal
names against which the <STRONG>TERM</STRONG> environment variable is matched. Setting
it to an empty value disables the GPM interface; using the built-in
support for xterm, etc.
If the environment variable is absent, ncurses will attempt to open GPM
if <STRONG>TERM</STRONG> contains "linux".
</PRE><H3><a name="h3-NCURSES_NO_HARD_TABS">NCURSES_NO_HARD_TABS</a></H3><PRE>
<STRONG>Ncurses</STRONG> may use tabs as part of the cursor movement optimization. In
some cases, your terminal driver may not handle these properly. Set
this environment variable to disable the feature. You can also adjust
your <STRONG>stty</STRONG> settings to avoid the problem.
</PRE><H3><a name="h3-NCURSES_NO_MAGIC_COOKIE">NCURSES_NO_MAGIC_COOKIE</a></H3><PRE>
Some terminals use a magic-cookie feature which requires special han-
dling to make highlighting and other video attributes display properly.
You can suppress the highlighting entirely for these terminals by set-
ting this environment variable.
</PRE><H3><a name="h3-NCURSES_NO_PADDING">NCURSES_NO_PADDING</a></H3><PRE>
Most of the terminal descriptions in the terminfo database are written
for real "hardware" terminals. Many people use terminal emulators
which run in a windowing environment and use curses-based applications.
Terminal emulators can duplicate all of the important aspects of a
hardware terminal, but they do not have the same limitations. The
chief limitation of a hardware terminal from the standpoint of your
application is the management of dataflow, i.e., timing. Unless a
hardware terminal is interfaced into a terminal concentrator (which
does flow control), it (or your application) must manage dataflow, pre-
venting overruns. The cheapest solution (no hardware cost) is for your
program to do this by pausing after operations that the terminal does
slowly, such as clearing the display.
As a result, many terminal descriptions (including the vt100) have
delay times embedded. You may wish to use these descriptions, but not
want to pay the performance penalty.
Set the NCURSES_NO_PADDING environment variable to disable all but
mandatory padding. Mandatory padding is used as a part of special con-
trol sequences such as <EM>flash</EM>.
</PRE><H3><a name="h3-NCURSES_NO_SETBUF">NCURSES_NO_SETBUF</a></H3><PRE>
This setting is obsolete. Before changes
<STRONG>o</STRONG> started with 5.9 patch 20120825 and
<STRONG>o</STRONG> continued though 5.9 patch 20130126
<STRONG>ncurses</STRONG> enabled buffered output during terminal initialization. This
was done (as in SVr4 curses) for performance reasons. For testing pur-
poses, both of <STRONG>ncurses</STRONG> and certain applications, this feature was made
optional. Setting the NCURSES_NO_SETBUF variable disabled output
buffering, leaving the output in the original (usually line buffered)
mode.
In the current implementation, ncurses performs its own buffering and
does not require this workaround. It does not modify the buffering of
the standard output.
The reason for the change was to make the behavior for interrupts and
other signals more robust. One drawback is that certain nonconven-
tional programs would mix ordinary stdio calls with ncurses calls and
(usually) work. This is no longer possible since ncurses is not using
the buffered standard output but its own output (to the same file
descriptor). As a special case, the low-level calls such as <STRONG>putp</STRONG> still
use the standard output. But high-level curses calls do not.
</PRE><H3><a name="h3-NCURSES_NO_UTF8_ACS">NCURSES_NO_UTF8_ACS</a></H3><PRE>
During initialization, the <STRONG>ncurses</STRONG> library checks for special cases
where VT100 line-drawing (and the corresponding alternate character set
capabilities) described in the terminfo are known to be missing.
Specifically, when running in a UTF-8 locale, the Linux console emula-
tor and the GNU screen program ignore these. Ncurses checks the <STRONG>TERM</STRONG>
environment variable for these. For other special cases, you should
set this environment variable. Doing this tells ncurses to use Unicode
values which correspond to the VT100 line-drawing glyphs. That works
for the special cases cited, and is likely to work for terminal emula-
tors.
When setting this variable, you should set it to a nonzero value. Set-
ting it to zero (or to a nonnumber) disables the special check for
"linux" and "screen".
As an alternative to the environment variable, ncurses checks for an
extended terminfo capability <STRONG>U8</STRONG>. This is a numeric capability which
can be compiled using <STRONG>tic</STRONG> <STRONG>-x</STRONG>. For example
# linux console, if patched to provide working
# VT100 shift-in/shift-out, with corresponding font.
linux-vt100|linux console with VT100 line-graphics,
U8#0, use=linux,
# uxterm with vt100Graphics resource set to false
xterm-utf8|xterm relying on UTF-8 line-graphics,
U8#1, use=xterm,
The name "U8" is chosen to be two characters, to permit it to be used
by applications that use ncurses' termcap interface.
</PRE><H3><a name="h3-NCURSES_TRACE">NCURSES_TRACE</a></H3><PRE>
During initialization, the <STRONG>ncurses</STRONG> debugging library checks the
NCURSES_TRACE environment variable. If it is defined, to a numeric
value, <STRONG>ncurses</STRONG> calls the <STRONG>trace</STRONG> function, using that value as the argu-
ment.
The argument values, which are defined in <STRONG>curses.h</STRONG>, provide several
types of information. When running with traces enabled, your applica-
tion will write the file <STRONG>trace</STRONG> to the current directory.
See <STRONG><A HREF="curs_trace.3x.html">curs_trace(3x)</A></STRONG> for more information.
</PRE><H3><a name="h3-TERM">TERM</a></H3><PRE>
Denotes your terminal type. Each terminal type is distinct, though
many are similar.
<STRONG>TERM</STRONG> is commonly set by terminal emulators to help applications find a
workable terminal description. Some of those choose a popular approxi-
mation, e.g., "ansi", "vt100", "xterm" rather than an exact fit. Not
infrequently, your application will have problems with that approach,
e.g., incorrect function-key definitions.
If you set <STRONG>TERM</STRONG> in your environment, it has no effect on the operation
of the terminal emulator. It only affects the way applications work
within the terminal. Likewise, as a general rule (<STRONG>xterm</STRONG> being a rare
exception), terminal emulators which allow you to specify <STRONG>TERM</STRONG> as a
parameter or configuration value do not change their behavior to match
that setting.
</PRE><H3><a name="h3-TERMCAP">TERMCAP</a></H3><PRE>
If the <STRONG>ncurses</STRONG> library has been configured with <EM>termcap</EM> support,
<STRONG>ncurses</STRONG> will check for a terminal's description in termcap form if it
is not available in the terminfo database.
The <STRONG>TERMCAP</STRONG> environment variable contains either a terminal description
(with newlines stripped out), or a file name telling where the informa-
tion denoted by the <STRONG>TERM</STRONG> environment variable exists. In either case,
setting it directs <STRONG>ncurses</STRONG> to ignore the usual place for this informa-
tion, e.g., /etc/termcap.
</PRE><H3><a name="h3-TERMINFO">TERMINFO</a></H3><PRE>
<STRONG>ncurses</STRONG> can be configured to read from multiple terminal databases.
The <STRONG>TERMINFO</STRONG> variable overrides the location for the default terminal
database. Terminal descriptions (in terminal format) are stored in
terminal databases:
<STRONG>o</STRONG> Normally these are stored in a directory tree, using subdirectories
named by the first letter of the terminal names therein.
This is the scheme used in System V, which legacy Unix systems use,
and the <STRONG>TERMINFO</STRONG> variable is used by <EM>curses</EM> applications on those
systems to override the default location of the terminal database.
<STRONG>o</STRONG> If <STRONG>ncurses</STRONG> is built to use hashed databases, then each entry in
this list may be the path of a hashed database file, e.g.,
/usr/share/terminfo.db
rather than
/usr/share/terminfo/
The hashed database uses less disk-space and is a little faster
than the directory tree. However, some applications assume the
existence of the directory tree, reading it directly rather than
using the terminfo library calls.
<STRONG>o</STRONG> If <STRONG>ncurses</STRONG> is built with a support for reading termcap files
directly, then an entry in this list may be the path of a termcap
file.
<STRONG>o</STRONG> If the <STRONG>TERMINFO</STRONG> variable begins with "hex:" or "b64:", <STRONG>ncurses</STRONG> uses
the remainder of that variable as a compiled terminal description.
You might produce the base64 format using <STRONG><A HREF="infocmp.1m.html">infocmp(1m)</A></STRONG>:
TERMINFO="$(infocmp -0 -Q2 -q)"
export TERMINFO
The compiled description is used if it corresponds to the terminal
identified by the <STRONG>TERM</STRONG> variable.
Setting <STRONG>TERMINFO</STRONG> is the simplest, but not the only way to set location
of the default terminal database. The complete list of database loca-
tions in order follows:
<STRONG>o</STRONG> the last terminal database to which <STRONG>ncurses</STRONG> wrote, if any, is
searched first
<STRONG>o</STRONG> the location specified by the TERMINFO environment variable
<STRONG>o</STRONG> $HOME/.terminfo
<STRONG>o</STRONG> locations listed in the TERMINFO_DIRS environment variable
<STRONG>o</STRONG> one or more locations whose names are configured and compiled
into the ncurses library, i.e.,
<STRONG>o</STRONG> /usr/local/ncurses/share/terminfo:/usr/share/terminfo (corre-
sponding to the TERMINFO_DIRS variable)
<STRONG>o</STRONG> /usr/share/terminfo (corresponding to the TERMINFO variable)
</PRE><H3><a name="h3-TERMINFO_DIRS">TERMINFO_DIRS</a></H3><PRE>
Specifies a list of locations to search for terminal descriptions.
Each location in the list is a terminal database as described in the
section on the <STRONG>TERMINFO</STRONG> variable. The list is separated by colons
(i.e., ":") on Unix, semicolons on OS/2 EMX.
There is no corresponding feature in System V terminfo; it is an exten-
sion developed for <STRONG>ncurses</STRONG>.
</PRE><H3><a name="h3-TERMPATH">TERMPATH</a></H3><PRE>
If <STRONG>TERMCAP</STRONG> does not hold a file name then <STRONG>ncurses</STRONG> checks the <STRONG>TERMPATH</STRONG>
environment variable. This is a list of filenames separated by spaces
or colons (i.e., ":") on Unix, semicolons on OS/2 EMX.
If the <STRONG>TERMPATH</STRONG> environment variable is not set, <STRONG>ncurses</STRONG> looks in the
files
/etc/termcap, /usr/share/misc/termcap and $HOME/.termcap,
in that order.
The library may be configured to disregard the following variables when
the current user is the superuser (root), or if the application uses
setuid or setgid permissions:
$TERMINFO, $TERMINFO_DIRS, $TERMPATH, as well as $HOME.
</PRE><H2><a name="h2-ALTERNATE-CONFIGURATIONS">ALTERNATE CONFIGURATIONS</a></H2><PRE>
Several different configurations are possible, depending on the config-
ure script options used when building <STRONG>ncurses</STRONG>. There are a few main
options whose effects are visible to the applications developer using
<STRONG>ncurses</STRONG>:
--disable-overwrite
The standard include for <STRONG>ncurses</STRONG> is as noted in <STRONG>SYNOPSIS</STRONG>:
<STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
This option is used to avoid filename conflicts when <STRONG>ncurses</STRONG> is
not the main implementation of curses of the computer. If <STRONG>ncurses</STRONG>
is installed disabling overwrite, it puts its headers in a subdi-
rectory, e.g.,
<STRONG>#include</STRONG> <STRONG><ncurses/curses.h></STRONG>
It also omits a symbolic link which would allow you to use
<STRONG>-lcurses</STRONG> to build executables.
--enable-widec
The configure script renames the library and (if the <STRONG>--dis-</STRONG>
<STRONG>able-overwrite</STRONG> option is used) puts the header files in a differ-
ent subdirectory. All of the library names have a "w" appended to
them, i.e., instead of
<STRONG>-lncurses</STRONG>
you link with
<STRONG>-lncursesw</STRONG>
You must also enable the wide-character features in the header
file when compiling for the wide-character library to use the
extended (wide-character) functions. The symbol which enables
these features has changed since XSI Curses, Issue 4:
<STRONG>o</STRONG> Originally, the wide-character feature required the symbol
<STRONG>_XOPEN_SOURCE_EXTENDED</STRONG> but that was only valid for XPG4
(1996).
<STRONG>o</STRONG> Later, that was deemed conflicting with <STRONG>_XOPEN_SOURCE</STRONG> defined
to 500.
<STRONG>o</STRONG> As of mid-2018, none of the features in this implementation
require a <STRONG>_XOPEN_SOURCE</STRONG> feature greater than 600. However,
X/Open Curses, Issue 7 (2009) recommends defining it to 700.
<STRONG>o</STRONG> Alternatively, you can enable the feature by defining
<STRONG>NCURSES_WIDECHAR</STRONG> with the caveat that some other header file
than <STRONG>curses.h</STRONG> may require a specific value for <STRONG>_XOPEN_SOURCE</STRONG>
(or a system-specific symbol).
The <STRONG>curses.h</STRONG> file which is installed for the wide-character
library is designed to be compatible with the normal library's
header. Only the size of the <STRONG>WINDOW</STRONG> structure differs, and very
few applications require more than a pointer to <STRONG>WINDOW</STRONG>s.
If the headers are installed allowing overwrite, the wide-charac-
ter library's headers should be installed last, to allow applica-
tions to be built using either library from the same set of head-
ers.
--with-pthread
The configure script renames the library. All of the library
names have a "t" appended to them (before any "w" added by
<STRONG>--enable-widec</STRONG>).
The global variables such as <STRONG>LINES</STRONG> are replaced by macros to allow
read-only access. At the same time, setter-functions are provided
to set these values. Some applications (very few) may require
changes to work with this convention.
--with-shared
--with-normal
--with-debug
--with-profile
The shared and normal (static) library names differ by their suf-
fixes, e.g., <STRONG>libncurses.so</STRONG> and <STRONG>libncurses.a</STRONG>. The debug and pro-
filing libraries add a "_g" and a "_p" to the root names respec-
tively, e.g., <STRONG>libncurses_g.a</STRONG> and <STRONG>libncurses_p.a</STRONG>.
--with-trace
The <STRONG>trace</STRONG> function normally resides in the debug library, but it
is sometimes useful to configure this in the shared library. Con-
figure scripts should check for the function's existence rather
than assuming it is always in the debug library.
</PRE><H2><a name="h2-FILES">FILES</a></H2><PRE>
/usr/share/tabset
directory containing initialization files for the terminal capa-
bility database /usr/share/terminfo terminal capability database
</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
<STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG> and related pages whose names begin "curs_" for detailed
routine descriptions.
<STRONG><A HREF="curs_variables.3x.html">curs_variables(3x)</A></STRONG>
<STRONG><A HREF="user_caps.5.html">user_caps(5)</A></STRONG> for user-defined capabilities
</PRE><H2><a name="h2-EXTENSIONS">EXTENSIONS</a></H2><PRE>
The <STRONG>ncurses</STRONG> library can be compiled with an option (<STRONG>-DUSE_GETCAP</STRONG>) that
falls back to the old-style /etc/termcap file if the terminal setup
code cannot find a terminfo entry corresponding to <STRONG>TERM</STRONG>. Use of this
feature is not recommended, as it essentially includes an entire term-
cap compiler in the <STRONG>ncurses</STRONG> startup code, at significant cost in core
and startup cycles.
The <STRONG>ncurses</STRONG> library includes facilities for capturing mouse events on
certain terminals (including xterm). See the <STRONG><A HREF="curs_mouse.3x.html">curs_mouse(3x)</A></STRONG> manual
page for details.
The <STRONG>ncurses</STRONG> library includes facilities for responding to window resiz-
ing events, e.g., when running in an xterm. See the <STRONG><A HREF="resizeterm.3x.html">resizeterm(3x)</A></STRONG> and
<STRONG><A HREF="wresize.3x.html">wresize(3x)</A></STRONG> manual pages for details. In addition, the library may be
configured with a <STRONG>SIGWINCH</STRONG> handler.
The <STRONG>ncurses</STRONG> library extends the fixed set of function key capabilities
of terminals by allowing the application designer to define additional
key sequences at runtime. See the <STRONG><A HREF="define_key.3x.html">define_key(3x)</A></STRONG> <STRONG><A HREF="key_defined.3x.html">key_defined(3x)</A></STRONG>, and
<STRONG><A HREF="keyok.3x.html">keyok(3x)</A></STRONG> manual pages for details.
The <STRONG>ncurses</STRONG> library can exploit the capabilities of terminals which
implement the ISO-6429 SGR 39 and SGR 49 controls, which allow an
application to reset the terminal to its original foreground and back-
ground colors. From the users' perspective, the application is able to
draw colored text on a background whose color is set independently,
providing better control over color contrasts. See the <STRONG>default_col-</STRONG>
<STRONG><A HREF="default_colors.3x.html">ors(3x)</A></STRONG> manual page for details.
The <STRONG>ncurses</STRONG> library includes a function for directing application out-
put to a printer attached to the terminal device. See the
<STRONG><A HREF="curs_print.3x.html">curs_print(3x)</A></STRONG> manual page for details.
</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
The <STRONG>ncurses</STRONG> library is intended to be BASE-level conformant with XSI
Curses. The EXTENDED XSI Curses functionality (including color sup-
port) is supported.
A small number of local differences (that is, individual differences
between the XSI Curses and <STRONG>ncurses</STRONG> calls) are described in <STRONG>PORTABILITY</STRONG>
sections of the library man pages.
Unlike other implementations, this one checks parameters such as point-
ers to WINDOW structures to ensure they are not null. The main reason
for providing this behavior is to guard against programmer error. The
standard interface does not provide a way for the library to tell an
application which of several possible errors were detected. Relying on
this (or some other) extension will adversely affect the portability of
curses applications.
This implementation also contains several extensions:
<STRONG>o</STRONG> The routine <STRONG>has_key</STRONG> is not part of XPG4, nor is it present in SVr4.
See the <STRONG><A HREF="curs_getch.3x.html">curs_getch(3x)</A></STRONG> manual page for details.
<STRONG>o</STRONG> The routine <STRONG>slk_attr</STRONG> is not part of XPG4, nor is it present in
SVr4. See the <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG> manual page for details.
<STRONG>o</STRONG> The routines <STRONG>getmouse</STRONG>, <STRONG>mousemask</STRONG>, <STRONG>ungetmouse</STRONG>, <STRONG>mouseinterval</STRONG>, and
<STRONG>wenclose</STRONG> relating to mouse interfacing are not part of XPG4, nor
are they present in SVr4. See the <STRONG><A HREF="curs_mouse.3x.html">curs_mouse(3x)</A></STRONG> manual page for
details.
<STRONG>o</STRONG> The routine <STRONG>mcprint</STRONG> was not present in any previous curses imple-
mentation. See the <STRONG><A HREF="curs_print.3x.html">curs_print(3x)</A></STRONG> manual page for details.
<STRONG>o</STRONG> The routine <STRONG>wresize</STRONG> is not part of XPG4, nor is it present in SVr4.
See the <STRONG><A HREF="wresize.3x.html">wresize(3x)</A></STRONG> manual page for details.
<STRONG>o</STRONG> The WINDOW structure's internal details can be hidden from applica-
tion programs. See <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(3x)</A></STRONG> for the discussion of <STRONG>is_scrol-</STRONG>
<STRONG>lok</STRONG>, etc.
<STRONG>o</STRONG> This implementation can be configured to provide rudimentary sup-
port for multi-threaded applications. See <STRONG><A HREF="curs_threads.3x.html">curs_threads(3x)</A></STRONG> for
details.
<STRONG>o</STRONG> This implementation can also be configured to provide a set of
functions which improve the ability to manage multiple screens.
See <STRONG><A HREF="curs_sp_funcs.3x.html">curs_sp_funcs(3x)</A></STRONG> for details.
In historic curses versions, delays embedded in the capabilities <STRONG>cr</STRONG>,
<STRONG>ind</STRONG>, <STRONG>cub1</STRONG>, <STRONG>ff</STRONG> and <STRONG>tab</STRONG> activated corresponding delay bits in the UNIX
tty driver. In this implementation, all padding is done by sending NUL
bytes. This method is slightly more expensive, but narrows the inter-
face to the UNIX kernel significantly and increases the package's
portability correspondingly.
</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
The header file <STRONG><curses.h></STRONG> automatically includes the header files
<STRONG><stdio.h></STRONG> and <STRONG><unctrl.h></STRONG>.
If standard output from a <STRONG>ncurses</STRONG> program is re-directed to something
which is not a tty, screen updates will be directed to standard error.
This was an undocumented feature of AT&T System V Release 3 curses.
</PRE><H2><a name="h2-AUTHORS">AUTHORS</a></H2><PRE>
Zeyd M. Ben-Halim, Eric S. Raymond, Thomas E. Dickey. Based on pcurses
by Pavel Curtis.
<STRONG><A HREF="ncurses.3x.html">ncurses(3x)</A></STRONG>
</PRE>
<div class="nav">
<ul>
<li><a href="#h2-NAME">NAME</a></li>
<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
<li><a href="#h2-DESCRIPTION">DESCRIPTION</a>
<ul>
<li><a href="#h3-Initialization">Initialization</a></li>
<li><a href="#h3-Datatypes">Datatypes</a></li>
<li><a href="#h3-Environment-variables">Environment variables</a></li>
<li><a href="#h3-Routine-and-Argument-Names">Routine and Argument Names</a></li>
<li><a href="#h3-Routine-Name-Index">Routine Name Index</a></li>
</ul>
</li>
<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
<li><a href="#h2-ENVIRONMENT">ENVIRONMENT</a>
<ul>
<li><a href="#h3-CC-command-character">CC command-character</a></li>
<li><a href="#h3-BAUDRATE">BAUDRATE</a></li>
<li><a href="#h3-COLUMNS">COLUMNS</a></li>
<li><a href="#h3-ESCDELAY">ESCDELAY</a></li>
<li><a href="#h3-HOME">HOME</a></li>
<li><a href="#h3-LINES">LINES</a></li>
<li><a href="#h3-MOUSE_BUTTONS_123">MOUSE_BUTTONS_123</a></li>
<li><a href="#h3-NCURSES_ASSUMED_COLORS">NCURSES_ASSUMED_COLORS</a></li>
<li><a href="#h3-NCURSES_CONSOLE2">NCURSES_CONSOLE2</a></li>
<li><a href="#h3-NCURSES_GPM_TERMS">NCURSES_GPM_TERMS</a></li>
<li><a href="#h3-NCURSES_NO_HARD_TABS">NCURSES_NO_HARD_TABS</a></li>
<li><a href="#h3-NCURSES_NO_MAGIC_COOKIE">NCURSES_NO_MAGIC_COOKIE</a></li>
<li><a href="#h3-NCURSES_NO_PADDING">NCURSES_NO_PADDING</a></li>
<li><a href="#h3-NCURSES_NO_SETBUF">NCURSES_NO_SETBUF</a></li>
<li><a href="#h3-NCURSES_NO_UTF8_ACS">NCURSES_NO_UTF8_ACS</a></li>
<li><a href="#h3-NCURSES_TRACE">NCURSES_TRACE</a></li>
<li><a href="#h3-TERM">TERM</a></li>
<li><a href="#h3-TERMCAP">TERMCAP</a></li>
<li><a href="#h3-TERMINFO">TERMINFO</a></li>
<li><a href="#h3-TERMINFO_DIRS">TERMINFO_DIRS</a></li>
<li><a href="#h3-TERMPATH">TERMPATH</a></li>
</ul>
</li>
<li><a href="#h2-ALTERNATE-CONFIGURATIONS">ALTERNATE CONFIGURATIONS</a></li>
<li><a href="#h2-FILES">FILES</a></li>
<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
<li><a href="#h2-EXTENSIONS">EXTENSIONS</a></li>
<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
<li><a href="#h2-NOTES">NOTES</a></li>
<li><a href="#h2-AUTHORS">AUTHORS</a></li>
</ul>
</div>
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