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ce4803687b
ncursesw-morphos/doc/html/man/ncurses.3x.html
Thomas E. Dickey ce4803687b ncurses 6.0 - patch 20170218 
+ fix several formatting issues with manual pages.
+ correct read of terminfo entry in which all strings are absent or
  explicitly cancelled.  Before this fix, the result was that all were
  treated as only absent.
+ modify infocmp to suppress mixture of absent/cancelled capabilities
  that would only show as "NULL, NULL", unless the -q option is used,
  e.g., to show "-, @" or "@, -".
2017-02-19 02:52:26 +00:00

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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>&lt;curses.h&gt;</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 rea-
sonable optimization. This implementation is "new curses"
(ncurses) and is the approved replacement for 4.4BSD clas-
sic curses, which has been discontinued. This describes
<STRONG>ncurses</STRONG> version 6.0 (patch 20170218).
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>PORTABILITY</STRONG> sections below and described in detail in the
respective <STRONG>EXTENSIONS</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., features 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 direc-
tory) 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 manipulation; output to windows and pads; reading ter-
minal input; control over terminal and <STRONG>curses</STRONG> input and
output options; environment query routines; color manipu-
lation; use of soft label keys; terminfo capabilities; 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 cer-
tain 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 initial-
ize 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 exiting.
To get character-at-a-time input without echoing (most
interactive, screen oriented programs want this), the fol-
lowing 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> com-
mand after the shell environment 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 struc-
tures, called <EM>windows</EM>, which can be thought of as two-
dimensional arrays of characters 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 win-
dows and not using <STRONG>stdscr</STRONG> at all. Mixing 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 dis-
played. See <STRONG><A HREF="curs_pad.3x.html">curs_pad(3x)</A></STRONG> for more information.
In addition to drawing characters on the screen, video
attributes and colors may be supported, causing the char-
acters 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 values. The video attributes, line drawing
characters, and input values use names, defined in
<STRONG>&lt;curses.h&gt;</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 program 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&amp;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 pro-
gram 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 compiled terminal defini-
tion 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>&lt;curses.h&gt;</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 val-
ues <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 routines.
</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 rou-
tines prefixed with <STRONG>w</STRONG> require a window argument. The rou-
tines prefixed with <STRONG>p</STRONG> require a pad argument. Those with-
out 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 coordinates.
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>WIN-</STRONG>
<STRONG>DOW</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>WIN-</STRONG>
<STRONG>DOW</STRONG>, <STRONG>SCREEN</STRONG>, <STRONG>bool</STRONG>, and <STRONG>chtype</STRONG> are defined in <STRONG>&lt;curses.h&gt;</STRONG>.
Types used for the terminfo routines such as <STRONG>TERMINAL</STRONG> are
defined in <STRONG>&lt;term.h&gt;</STRONG>.
This manual page describes functions which may appear in
any configuration of the library. There are two common
configurations of the library:
<EM>ncurses</EM>
the "normal" library, which handles 8-bit charac-
ters. The normal (8-bit) library stores charac-
ters 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 multi-
byte characters (see the section on <STRONG>ALTERNATE</STRONG> <STRONG>CON-</STRONG>
<STRONG>FIGURATIONS</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>.
<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 convention 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 manual 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>
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>
filter <STRONG><A HREF="curs_util.3x.html">curs_util(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>
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_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>
tiparm <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>
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 com-
pletion, unless otherwise noted in the routine descrip-
tions.
As a general rule, routines check for null pointers passed
as parameters, 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 customiz-
ing the runtime behavior of the <STRONG>ncurses</STRONG> library. The most
important ones have been already discussed in detail.
<STRONG>CC</STRONG>
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 variable. 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 application 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. Applica-
tions running in a windowing environment usually are able
to obtain the width of the window in which they are exe-
cuting. 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. However, 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 indepen-
dently. This is mainly useful to circumvent legacy mis-
features of terminal descriptions, e.g., xterm which com-
monly specifies a 65 line screen. For best results, <STRONG>lines</STRONG>
and <STRONG>cols</STRONG> should not be specified in a terminal description
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 net-
work. 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 multiple-clicking, you may wish to
lengthen this default value because the timeout applies to
the composed multi-click event as well as the individual
clicks.
In addition to the environment variable, this implementa-
tion provides a global variable with the same name. Por-
table applications should not rely upon the presence of
ESCDELAY in either form, but setting the environment vari-
able rather than the global variable does not create prob-
lems 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 charac-
ters. See COLUMNS 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 buttons 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 specified, <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>default_col-</STRONG>
<STRONG><A HREF="default_colors.3x.html">ors(3x)</A></STRONG>). You may set the foreground and background color
values with this environment variable by proving a 2-ele-
ment 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>CreateConsoleScreenBuffer</STRONG> is defective. Applica-
tions which use this will hang. However, it is possible
to simulate the action of this call by mapping coordi-
nates, 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 dis-
ables 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 opti-
mization. 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> set-
tings to avoid the problem. NCURSES_NO_MAGIC_COOKIE Some
terminals use a magic-cookie feature which requires spe-
cial handling to make highlighting and other video
attributes display properly. You can suppress the high-
lighting entirely for these terminals by setting 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 environ-
ment and use curses-based applications. Terminal emula-
tors can duplicate all of the important aspects of a hard-
ware 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,
preventing 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 control 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 initial-
ization. This was done (as in SVr4 curses) for perfor-
mance reasons. For testing purposes, 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 nonconventional 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 spe-
cial cases where VT100 line-drawing (and the corresponding
alternate character set capabilities) described in the
terminfo are known to be missing. Specifically, when run-
ning in a UTF-8 locale, the Linux console emulator 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 emulators.
When setting this variable, you should set it to a nonzero
value. Setting 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> func-
tion, using that value as the argument.
The argument values, which are defined in <STRONG>curses.h</STRONG>, pro-
vide several types of information. When running with
traces enabled, your application 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 dis-
tinct, though many are similar.
<STRONG>TERM</STRONG> is commonly set by terminal emulators to help appli-
cations find a workable terminal description. Some of
those choose a popular approximation, e.g., "ansi",
"vt100", "xterm" rather than an exact fit. Not infre-
quently, 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 termi-
nal description (with newlines stripped out), or a file
name telling where the information 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 infor-
mation, 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 termi-
nal 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 data-
base file, e.g.,
/usr/share/terminfo.db
rather than
/usr/share/terminfo/
The hashed database uses less disk-space and is a lit-
tle faster than the directory tree. However, some
applications assume the existence of the directory
tree, reading it directly rather than using the ter-
minfo 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 com-
piled 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 com-
plete list of database locations 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/ter-
minfo:/usr/share/terminfo (corresponding to the
TERMINFO_DIRS variable)
<STRONG>o</STRONG> /usr/share/terminfo (corresponding to the TER-
MINFO 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> vari-
able. 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 extension 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 configure 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>SYN-</STRONG>
<STRONG>OPSIS</STRONG>:
<STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</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 subdirectory,
e.g.,
<STRONG>#include</STRONG> <STRONG>&lt;ncurses/curses.h&gt;</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>--disable-overwrite</STRONG> option is used) puts the header
files in a different 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 define <STRONG>_XOPEN_SOURCE_EXTENDED</STRONG> when com-
piling for the wide-character library to use the
extended (wide-character) functions. 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> struc-
ture differs, and very few applications require more
than a pointer to <STRONG>WINDOW</STRONG>s. If the headers are
installed allowing overwrite, the wide-character
library's headers should be installed last, to allow
applications to be built using either library from
the same set of headers.
--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 suffixes, e.g., <STRONG>libncurses.so</STRONG> and <STRONG>libn-</STRONG>
<STRONG>curses.a</STRONG>. The debug and profiling libraries add a
"_g" and a "_p" to the root names respectively, 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. Configure scripts should
check for the function's existence rather than assum-
ing 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 capability database /usr/share/terminfo ter-
minal 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>
</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/term-
cap 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 termcap
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 resizing 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 SIGWINCH 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> man-
ual pages for details.
The <STRONG>ncurses</STRONG> library can exploit the capabilities of termi-
nals which implement the ISO-6429 SGR 39 and SGR 49 con-
trols, which allow an application to reset the terminal to
its original foreground and background colors. From the
users' perspective, the application is able to draw col-
ored text on a background whose color is set indepen-
dently, providing better control over color contrasts.
See the <STRONG><A HREF="default_colors.3x.html">default_colors(3x)</A></STRONG> manual page for details.
The <STRONG>ncurses</STRONG> library includes a function for directing
application output 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 confor-
mant with XSI Curses. The EXTENDED XSI Curses functional-
ity (including color support) 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 pointers 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 applica-
tion 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>mousein-</STRONG>
<STRONG>terval</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 implementation. 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 application programs. See <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(3x)</A></STRONG> for
the discussion of <STRONG>is_scrollok</STRONG>, etc.
<STRONG>o</STRONG> This implementation can be configured to provide rudi-
mentary support 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 capa-
bilities <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 implementa-
tion, 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>&lt;curses.h&gt;</STRONG> automatically includes the
header files <STRONG>&lt;stdio.h&gt;</STRONG> and <STRONG>&lt;unctrl.h&gt;</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 fea-
ture of AT&amp;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-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_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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