/usr/local/share/man/man3
Edit: /usr/local/share/man/man3/Curses.3pm (37580B)
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.\" ========================================================================
.\"
.IX Title "Curses 3"
.TH Curses 3 "2016-08-14" "perl v5.16.3" "User Contributed Perl Documentation"
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
Curses \- terminal screen handling and optimization
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& use Curses;
\&
\& initscr;
\& ...
\& endwin;
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\f(CW\*(C`Curses\*(C'\fR is the interface between Perl and your system's \fIcurses\fR\|(3)
library. For descriptions on the usage of a given function, variable,
or constant, consult your system's documentation, as such information
invariably varies (:\-) between different \fIcurses\fR\|(3) libraries and
operating systems. This document describes the interface itself, and
assumes that you already know how your system's \fIcurses\fR\|(3) library
works.
.SS "Unified Functions"
.IX Subsection "Unified Functions"
Many \fIcurses\fR\|(3) functions have variants starting with the prefixes
\&\fIw\-\fR, \fImv\-\fR, and/or \fIwmv\-\fR. These variants differ only in the
explicit addition of a window, or by the addition of two coordinates
that are used to move the cursor first. For example, \f(CW\*(C`addch()\*(C'\fR has
three other variants: \f(CW\*(C`waddch()\*(C'\fR, \f(CW\*(C`mvaddch()\*(C'\fR, and \f(CW\*(C`mvwaddch()\*(C'\fR.
The variants aren't very interesting; in fact, we could roll all of
the variants into original function by allowing a variable number
of arguments and analyzing the argument list for which variant the
user wanted to call.
.PP
Unfortunately, \fIcurses\fR\|(3) predates \fIvarargs\fR\|(3), so in C we were stuck
with all the variants. However, \f(CW\*(C`Curses\*(C'\fR is a Perl interface, so we
are free to \*(L"unify\*(R" these variants into one function. The section
\&\*(L"Available Functions\*(R" below lists all \fIcurses\fR\|(3) functions \f(CW\*(C`Curses\*(C'\fR
makes available as Perl equivalents, along with a column listing if it
is \fIunified\fR. If so, it takes a varying number of arguments as
follows:
.Sp
.RS 4
\&\f(CW\*(C`function( [win], [y, x], args );\*(C'\fR
.Sp
\&\fIwin\fR is an optional window argument, defaulting to \f(CW\*(C`stdscr\*(C'\fR if not
specified.
.Sp
\&\fIy, x\fR is an optional coordinate pair used to move the cursor,
defaulting to no move if not specified.
.Sp
\&\fIargs\fR are the required arguments of the function. These are the
arguments you would specify if you were just calling the base function
and not any of the variants.
.RE
.PP
This makes the variants obsolete, since their functionality has been
merged into a single function, so \f(CW\*(C`Curses\*(C'\fR does not define them by
default. You can still get them if you want, by setting the
variable \f(CW$Curses::OldCurses\fR to a non-zero value before using the
\&\f(CW\*(C`Curses\*(C'\fR package. See "Perl 4.X \f(CW\*(C`cursperl\*(C'\fR Compatibility"
for an example of this.
.SS "Wide-Character-Aware Functions"
.IX Subsection "Wide-Character-Aware Functions"
The following are the preferred functions for working with strings, though
they don't follow the normal unified function naming convention (based on the
names in the Curses library) described above. Despite the naming, each
corresponds to a Curses library function. For example, a \f(CW\*(C`getchar\*(C'\fR
call performs a Curses library function in the \f(CW\*(C`getch\*(C'\fR family.
.PP
In addition to these functions, The \f(CW\*(C`Curses\*(C'\fR module contains corresponding
functions with the conventional naming (e.g. \f(CW\*(C`getch\*(C'\fR); the duplication is for
historical reasons. The preferred functions were new in Curses 1.29 (April
2014). They use the wide character functions in the Curses library if
available (falling back to using the traditional non-wide-character versions).
They also have a more Perl-like interface, taking care of some gory details
under the hood about which a Perl programmer shouldn't have to worry.
.PP
The reason for two sets of string-handling functions is historical. The
original Curses Perl module predates Curses libraries that understand multiple
byte character encodings. Moreover, the module was designed to have a Perl
interface that closely resembles the C interface syntactically and directly
passes the internal byte representation of Perl strings to C code. This was
probably fine before Perl got Unicode function, but today, Perl stores strings
internally in either Latin\-1 or Unicode \s-1UTF\-8\s0 and the original module was not
sensitive to which encoding was used.
.PP
While most of the problems could be worked around in Perl code using the
traditional interface, it's hard to get right and you need a
wide-character-aware curses library (e.g. ncursesw) anyway to make it work
properly. Because existing consumers of the Curses module may be relying on
the traditional behavior, Curses module designers couldn't simply modify the
existing functions to understand wide characters and convert from and to Perl
strings.
.PP
None of these functions exist if Perl is older than 5.6.
.PP
\fI\f(CI\*(C`getchar\*(C'\fI\fR
.IX Subsection "getchar"
.PP
This calls \f(CW\*(C`wget_wch()\*(C'\fR. It returns a character \*(-- more precisely, a
one-character (not necessarily one-byte!) string holding the character \*(-- for
a normal key and a two-element list \f(CW\*(C`(undef, key\-number)\*(C'\fR for a function key.
It returns \f(CW\*(C`undef\*(C'\fR on error.
.PP
If you don't expect function keys (i.e. with \f(CW\*(C`keypad(0))\*(C'\fR, you can simply do
.Sp
.Vb 2
\& my $ch = getchar;
\& die "getchar failed" unless defined $ch;
.Ve
.PP
If you do expect function keys (i.e. with \f(CWkeypad(1)\fR), you can still assign
the result to a scalar variable as above. Because of of the way the comma
operator works, that variable will receive either \f(CW\*(C`undef\*(C'\fR or the string or
the number, and you can decode it yourself.
.Sp
.Vb 7
\& my $ch = getchar;
\& die "getchar failed" unless defined $ch;
\& if (<$ch looks like a number >= 0x100>) {
\&
\& } else {
\&
\& }
.Ve
.PP
or do
.Sp
.Vb 8
\& my ($ch, $key) = getchar;
\& if (defined $key) {
\&
\& } else if (defined $ch) {
\&
\& } else {
\& die "getchar failed";
\& }
.Ve
.PP
If \f(CW\*(C`wget_wch()\*(C'\fR is not available (i.e. The Curses library does not understand
wide characters), this calls \f(CW\*(C`wgetch()\*(C'\fR, but returns the values described
above nonetheless. This can be a problem because with a multibyte character
encoding like \s-1UTF\-8,\s0 you will receive two one-character strings for a
two-byte-character (e.g. \*(L"Ã\*(R" and \*(L"¤\*(R" for \*(L"ä\*(R"). If you append
these characters to a Perl string, that string may internally contain a valid
\&\s-1UTF\-8\s0 encoding of a character, but Perl will not interpret it that way. Perl
may even try to convert what it believes to be two characters to \s-1UTF\-8,\s0 giving
you four bytes.
.PP
\fI\f(CI\*(C`getstring\*(C'\fI\fR
.IX Subsection "getstring"
.PP
This calls \f(CW\*(C`wgetn_wstr\*(C'\fR and returns a string or \f(CW\*(C`undef\*(C'\fR. It cannot return a
function key value; the Curses library will itself interpret \s-1KEY_LEFT\s0 and
\&\s-1KEY_BACKSPACE.\s0
.PP
If \f(CW\*(C`wgett_wstr()\*(C'\fR is unavailable, this calls \f(CW\*(C`wgetstr()\*(C'\fR.
.PP
In both cases, the function allocates a buffer of fixed size to hold the
result of the Curses library call.
.Sp
.Vb 2
\& my $s = getstring();
\& die "getstring failed" unless defined $s;
.Ve
.PP
\fI\f(CI\*(C`addstring\*(C'\fI/\f(CI\*(C`insstring\*(C'\fI\fR
.IX Subsection "addstring/insstring"
.PP
This adds/inserts the Perl string passed as an argument to the Curses window
using \f(CW\*(C`waddnwstr()\*(C'\fR/\f(CW\*(C`wins_nwstr()\*(C'\fR or, if unavailable,
\&\f(CW\*(C`waddnstr()\*(C'\fR/\f(CW\*(C`winsnstr()\*(C'\fR. It returns a true value on success, false on
failure.
.Sp
.Vb 1
\& addstring("Hällö, Wörld") || die "addstring failed";
.Ve
.PP
\fI\f(CI\*(C`instring\*(C'\fI\fR
.IX Subsection "instring"
.PP
This returns a Perl string (or \f(CW\*(C`undef\*(C'\fR on failure) holding the characters
from the current cursor position up to the end of the line. It uses
\&\f(CW\*(C`winnwstr()\*(C'\fR if available, and otherwise \f(CW\*(C`innstr()\*(C'\fR.
.Sp
.Vb 2
\& my $s = instring();
\& die "instring failed" unless defined $s;
.Ve
.PP
\fI\f(CI\*(C`ungetchar\*(C'\fI\fR
.IX Subsection "ungetchar"
.PP
This pushes one character (passed as a one-character Perl string) back to the
input queue. It uses \f(CW\*(C`unget_wch()\*(C'\fR or \f(CW\*(C`ungetch()\*(C'\fR. It returns a true value
on success, false on failure. It cannot push back a function key; the Curses
library provides no way to push back function keys, only characters.
.Sp
.Vb 1
\& ungetchar("X") || die "ungetchar failed";
.Ve
.PP
The \f(CW\*(C`Curses\*(C'\fR module provides no interface to the complex-character routines
(\f(CW\*(C`wadd_wch()\*(C'\fR, \f(CW\*(C`wadd_wchnstr()\*(C'\fR, \f(CW\*(C`wecho_wchar()\*(C'\fR, \f(CW\*(C`win_wch()\*(C'\fR,
\&\f(CW\*(C`win_wchnstr()\*(C'\fR, \f(CW\*(C`wins_wch()\*(C'\fR) because there is no sensible way of
converting from Perl to a C \f(CW\*(C`cchar_t\*(C'\fR or back.
.SS "Objects"
.IX Subsection "Objects"
Objects work. Example:
.PP
.Vb 4
\& $win = new Curses;
\& $win\->addstr(10, 10, \*(Aqfoo\*(Aq);
\& $win\->refresh;
\& ...
.Ve
.PP
Any function that has been marked as \fIunified\fR (see
\&\*(L"Available Functions\*(R" below and \*(L"Unified Functions\*(R" above)
can be called as a method for a Curses object.
.PP
Do not use \f(CW\*(C`initscr()\*(C'\fR if using objects, as the first call to get
a \f(CW\*(C`new Curses\*(C'\fR will do it for you.
.SS "Security Concerns"
.IX Subsection "Security Concerns"
It has always been the case with the curses functions, but please note
that the following functions:
.PP
.Vb 3
\& getstr() (and optional wgetstr(), mvgetstr(), and mvwgetstr())
\& inchstr() (and optional winchstr(), mvinchstr(), and mvwinchstr())
\& instr() (and optional winstr(), mvinstr(), and mvwinstr())
.Ve
.PP
are subject to buffer overflow attack. This is because you pass in
the buffer to be filled in, which has to be of finite length, but
there is no way to stop a bad guy from typing.
.PP
In order to avoid this problem, use the alternate functions:
.PP
.Vb 3
\& getnstr()
\& inchnstr()
\& innstr()
.Ve
.PP
which take an extra \*(L"size of buffer\*(R" argument
or the wide-character-aware \fIgetstring()\fR and \fIinstring()\fR versions.
.SH "COMPATIBILITY"
.IX Header "COMPATIBILITY"
.ie n .SS "Perl 4.X ""cursperl"" Compatibility"
.el .SS "Perl 4.X \f(CWcursperl\fP Compatibility"
.IX Subsection "Perl 4.X cursperl Compatibility"
\&\f(CW\*(C`Curses\*(C'\fR was written to take advantage of features of Perl 5 and later. The
author thought it was better to provide an improved curses programming
environment than to be 100% compatible. However, many old \f(CW\*(C`curseperl\*(C'\fR
applications will probably still work by starting the script with:
.PP
.Vb 2
\& BEGIN { $Curses::OldCurses = 1; }
\& use Curses;
.Ve
.PP
Any old application that still does not work should print an understandable
error message explaining the problem.
.PP
Some functions and variables are not available through \f(CW\*(C`Curses\*(C'\fR, even with
the \f(CW\*(C`BEGIN\*(C'\fR line. They are listed under
\&\*(L"Curses items not available through Perl Curses\*(R".
.PP
The variables \f(CW$stdscr\fR and \f(CW$curscr\fR are also available as
functions \f(CW\*(C`stdscr\*(C'\fR and \f(CW\*(C`curscr\*(C'\fR. This is because of a Perl bug.
See the \s-1LIMITATIONS\s0 section for details.
.ie n .SS "Incompatibilities with previous versions of ""Curses"""
.el .SS "Incompatibilities with previous versions of \f(CWCurses\fP"
.IX Subsection "Incompatibilities with previous versions of Curses"
In previous versions of this software, some Perl functions took a different
set of parameters than their C counterparts. This is not true in the current
version. You should now use \f(CW\*(C`getstr($str)\*(C'\fR and \f(CW\*(C`getyx($y, $x)\*(C'\fR instead of
\&\f(CW\*(C`$str = getstr()\*(C'\fR and \f(CW\*(C`($y, $x) = getyx()\*(C'\fR.
.SH "DIAGNOSTICS"
.IX Header "DIAGNOSTICS"
.IP "\(bu" 4
Curses function '%s' called with too \f(CW%s\fR arguments at ...
.Sp
You have called a \f(CW\*(C`Curses\*(C'\fR function with a wrong number of
arguments.
.IP "\(bu" 4
argument \f(CW%d\fR to Curses function '%s' is not a Curses \f(CW%s\fR at ...
.IP "\(bu" 4
argument is not a Curses \f(CW%s\fR at ...
.Sp
The argument you gave to the function wasn't of a valid type for the
place you used it.
.Sp
This probably means that you didn't give the right arguments to a \fIunified\fR
function. See the \s-1DESCRIPTION\s0 section on \*(L"Unified Functions\*(R" for more
information.
.IP "\(bu" 4
Curses function '%s' is not defined in your Curses library at ...
.Sp
Your code has a call to a Perl \f(CW\*(C`Curses\*(C'\fR function that your system's Curses
library doesn't provide.
.IP "\(bu" 4
Curses variable '%s' is not defined in your Curses library at ...
.Sp
Your code has a Perl \f(CW\*(C`Curses\*(C'\fR variable that your system's Curses library
doesn't provide.
.IP "\(bu" 4
Curses constant '%s' is not defined in your Curses library at ...
.Sp
Your code references the specified \f(CW\*(C`Curses\*(C'\fR constant, and your system's
Curses library doesn't provide it.
.IP "\(bu" 4
Curses::Vars::FETCH called with bad index at ...
.IP "\(bu" 4
Curses::Vars::STORE called with bad index at ...
.Sp
You've been playing with the \f(CW\*(C`tie\*(C'\fR interface to the \f(CW\*(C`Curses\*(C'\fR variables.
Don't do that. :\-)
.IP "\(bu" 4
Anything else
.Sp
Check out the \fIperldiag\fR man page to see if the error is in there.
.SH "LIMITATIONS"
.IX Header "LIMITATIONS"
If you use the variables \f(CW$stdscr\fR and \f(CW$curscr\fR instead of their
functional counterparts (\f(CW\*(C`stdscr\*(C'\fR and \f(CW\*(C`curscr\*(C'\fR), you might run into
a bug in Perl where the \*(L"magic\*(R" isn't called early enough. This is
manifested by the \f(CW\*(C`Curses\*(C'\fR package telling you \f(CW$stdscr\fR isn't a
window. One workaround is to put a line like \f(CW\*(C`$stdscr = $stdscr\*(C'\fR
near the front of your program.
.SH "AUTHOR"
.IX Header "AUTHOR"
William Setzer
.SH "SYNOPSIS OF PERL CURSES AVAILABILITY"
.IX Header "SYNOPSIS OF PERL CURSES AVAILABILITY"
.SS "Available Functions"
.IX Subsection "Available Functions"
.Vb 10
\& Available Function Unified? Available via $OldCurses[*]
\& \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- \-\-\-\-\-\-\-\- \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
\& addch Yes waddch mvaddch mvwaddch
\& echochar Yes wechochar
\& addchstr Yes waddchstr mvaddchstr mvwaddchstr
\& addchnstr Yes waddchnstr mvaddchnstr mvwaddchnstr
\& addstr Yes waddstr mvaddstr mvwaddstr
\& addnstr Yes waddnstr mvaddnstr mvwaddnstr
\& attroff Yes wattroff
\& attron Yes wattron
\& attrset Yes wattrset
\& standend Yes wstandend
\& standout Yes wstandout
\& attr_get Yes wattr_get
\& attr_off Yes wattr_off
\& attr_on Yes wattr_on
\& attr_set Yes wattr_set
\& chgat Yes wchgat mvchgat mvwchgat
\& COLOR_PAIR No
\& PAIR_NUMBER No
\& beep No
\& flash No
\& bkgd Yes wbkgd
\& bkgdset Yes wbkgdset
\& getbkgd Yes
\& border Yes wborder
\& box Yes
\& hline Yes whline mvhline mvwhline
\& vline Yes wvline mvvline mvwvline
\& erase Yes werase
\& clear Yes wclear
\& clrtobot Yes wclrtobot
\& clrtoeol Yes wclrtoeol
\& start_color No
\& init_pair No
\& init_color No
\& has_colors No
\& can_change_color No
\& color_content No
\& pair_content No
\& delch Yes wdelch mvdelch mvwdelch
\& deleteln Yes wdeleteln
\& insdelln Yes winsdelln
\& insertln Yes winsertln
\& getch Yes wgetch mvgetch mvwgetch
\& ungetch No
\& has_key No
\& KEY_F No
\& getstr Yes wgetstr mvgetstr mvwgetstr
\& getnstr Yes wgetnstr mvgetnstr mvwgetnstr
\& getyx Yes
\& getparyx Yes
\& getbegyx Yes
\& getmaxyx Yes
\& inch Yes winch mvinch mvwinch
\& inchstr Yes winchstr mvinchstr mvwinchstr
\& inchnstr Yes winchnstr mvinchnstr mvwinchnstr
\& initscr No
\& endwin No
\& isendwin No
\& newterm No
\& set_term No
\& delscreen No
\& cbreak No
\& nocbreak No
\& echo No
\& noecho No
\& halfdelay No
\& intrflush Yes
\& keypad Yes
\& meta Yes
\& nodelay Yes
\& notimeout Yes
\& raw No
\& noraw No
\& qiflush No
\& noqiflush No
\& timeout Yes wtimeout
\& typeahead No
\& insch Yes winsch mvinsch mvwinsch
\& insstr Yes winsstr mvinsstr mvwinsstr
\& insnstr Yes winsnstr mvinsnstr mvwinsnstr
\& instr Yes winstr mvinstr mvwinstr
\& innstr Yes winnstr mvinnstr mvwinnstr
\& def_prog_mode No
\& def_shell_mode No
\& reset_prog_mode No
\& reset_shell_mode No
\& resetty No
\& savetty No
\& getsyx No
\& setsyx No
\& curs_set No
\& napms No
\& move Yes wmove
\& clearok Yes
\& idlok Yes
\& idcok Yes
\& immedok Yes
\& leaveok Yes
\& setscrreg Yes wsetscrreg
\& scrollok Yes
\& nl No
\& nonl No
\& overlay No
\& overwrite No
\& copywin No
\& newpad No
\& subpad No
\& prefresh No
\& pnoutrefresh No
\& pechochar No
\& refresh Yes wrefresh
\& noutrefresh Yes wnoutrefresh
\& doupdate No
\& redrawwin Yes
\& redrawln Yes wredrawln
\& scr_dump No
\& scr_restore No
\& scr_init No
\& scr_set No
\& scroll Yes
\& scrl Yes wscrl
\& slk_init No
\& slk_set No
\& slk_refresh No
\& slk_noutrefresh No
\& slk_label No
\& slk_clear No
\& slk_restore No
\& slk_touch No
\& slk_attron No
\& slk_attrset No
\& slk_attr No
\& slk_attroff No
\& slk_color No
\& baudrate No
\& erasechar No
\& has_ic No
\& has_il No
\& killchar No
\& longname No
\& termattrs No
\& termname No
\& touchwin Yes
\& touchline Yes
\& untouchwin Yes
\& touchln Yes wtouchln
\& is_linetouched Yes
\& is_wintouched Yes
\& unctrl No
\& keyname No
\& filter No
\& use_env No
\& putwin No
\& getwin No
\& delay_output No
\& flushinp No
\& newwin No
\& delwin Yes
\& mvwin Yes
\& subwin Yes
\& derwin Yes
\& mvderwin Yes
\& dupwin Yes
\& syncup Yes wsyncup
\& syncok Yes
\& cursyncup Yes wcursyncup
\& syncdown Yes wsyncdown
\& getmouse No
\& ungetmouse No
\& mousemask No
\& enclose Yes wenclose
\& mouse_trafo Yes wmouse_trafo
\& mouseinterval No
\& BUTTON_RELEASE No
\& BUTTON_PRESS No
\& BUTTON_CLICK No
\& BUTTON_DOUBLE_CLICK No
\& BUTTON_TRIPLE_CLICK No
\& BUTTON_RESERVED_EVENT No
\& use_default_colors No
\& assume_default_colors No
\& define_key No
\& keybound No
\& keyok No
\& resizeterm No
\& resize Yes wresize
\& getmaxy Yes
\& getmaxx Yes
\& flusok Yes
\& getcap No
\& touchoverlap No
\& new_panel No
\& bottom_panel No
\& top_panel No
\& show_panel No
\& update_panels No
\& hide_panel No
\& panel_window No
\& replace_panel No
\& move_panel No
\& panel_hidden No
\& panel_above No
\& panel_below No
\& set_panel_userptr No
\& panel_userptr No
\& del_panel No
\& set_menu_fore No
\& menu_fore No
\& set_menu_back No
\& menu_back No
\& set_menu_grey No
\& menu_grey No
\& set_menu_pad No
\& menu_pad No
\& pos_menu_cursor No
\& menu_driver No
\& set_menu_format No
\& menu_format No
\& set_menu_items No
\& menu_items No
\& item_count No
\& set_menu_mark No
\& menu_mark No
\& new_menu No
\& free_menu No
\& menu_opts No
\& set_menu_opts No
\& menu_opts_on No
\& menu_opts_off No
\& set_menu_pattern No
\& menu_pattern No
\& post_menu No
\& unpost_menu No
\& set_menu_userptr No
\& menu_userptr No
\& set_menu_win No
\& menu_win No
\& set_menu_sub No
\& menu_sub No
\& scale_menu No
\& set_current_item No
\& current_item No
\& set_top_row No
\& top_row No
\& item_index No
\& item_name No
\& item_description No
\& new_item No
\& free_item No
\& set_item_opts No
\& item_opts_on No
\& item_opts_off No
\& item_opts No
\& item_userptr No
\& set_item_userptr No
\& set_item_value No
\& item_value No
\& item_visible No
\& menu_request_name No
\& menu_request_by_name No
\& set_menu_spacing No
\& menu_spacing No
\& pos_form_cursor No
\& data_ahead No
\& data_behind No
\& form_driver No
\& set_form_fields No
\& form_fields No
\& field_count No
\& move_field No
\& new_form No
\& free_form No
\& set_new_page No
\& new_page No
\& set_form_opts No
\& form_opts_on No
\& form_opts_off No
\& form_opts No
\& set_current_field No
\& current_field No
\& set_form_page No
\& form_page No
\& field_index No
\& post_form No
\& unpost_form No
\& set_form_userptr No
\& form_userptr No
\& set_form_win No
\& form_win No
\& set_form_sub No
\& form_sub No
\& scale_form No
\& set_field_fore No
\& field_fore No
\& set_field_back No
\& field_back No
\& set_field_pad No
\& field_pad No
\& set_field_buffer No
\& field_buffer No
\& set_field_status No
\& field_status No
\& set_max_field No
\& field_info No
\& dynamic_field_info No
\& set_field_just No
\& field_just No
\& new_field No
\& dup_field No
\& link_field No
\& free_field No
\& set_field_opts No
\& field_opts_on No
\& field_opts_off No
\& field_opts No
\& set_field_userptr No
\& field_userptr No
\& field_arg No
\& form_request_name No
\& form_request_by_name No
.Ve
.PP
[*] To use any functions in this column, the program must set the variable
\&\f(CW$Curses::OldCurses\fR variable to a non-zero value before using the
\&\f(CW\*(C`Curses\*(C'\fR package. See \*(L"Perl 4.X cursperl Compatibility\*(R" for an
example of this.
.SS "Available Wide-Character-Aware Functions"
.IX Subsection "Available Wide-Character-Aware Functions"
.Vb 8
\& Function Uses wide\-character call Reverts to legacy call
\& \-\-\-\-\-\-\-\- \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
\& getchar wget_wch wgetch
\& getstring wgetn_wstr wgetnstr
\& ungetchar unget_wch ungetch
\& instring winnwtr winnstr
\& addstring waddnwstr waddnstr
\& insstring wins_nwstr winsnstr
.Ve
.SS "Available Variables"
.IX Subsection "Available Variables"
.Vb 2
\& LINES COLS stdscr
\& curscr COLORS COLOR_PAIRS
.Ve
.SS "Available Constants"
.IX Subsection "Available Constants"
.Vb 10
\& ERR OK ACS_BLOCK
\& ACS_BOARD ACS_BTEE ACS_BULLET
\& ACS_CKBOARD ACS_DARROW ACS_DEGREE
\& ACS_DIAMOND ACS_HLINE ACS_LANTERN
\& ACS_LARROW ACS_LLCORNER ACS_LRCORNER
\& ACS_LTEE ACS_PLMINUS ACS_PLUS
\& ACS_RARROW ACS_RTEE ACS_S1
\& ACS_S9 ACS_TTEE ACS_UARROW
\& ACS_ULCORNER ACS_URCORNER ACS_VLINE
\& A_ALTCHARSET A_ATTRIBUTES A_BLINK
\& A_BOLD A_CHARTEXT A_COLOR
\& A_DIM A_INVIS A_NORMAL
\& A_PROTECT A_REVERSE A_STANDOUT
\& A_UNDERLINE COLOR_BLACK COLOR_BLUE
\& COLOR_CYAN COLOR_GREEN COLOR_MAGENTA
\& COLOR_RED COLOR_WHITE COLOR_YELLOW
\& KEY_A1 KEY_A3 KEY_B2
\& KEY_BACKSPACE KEY_BEG KEY_BREAK
\& KEY_BTAB KEY_C1 KEY_C3
\& KEY_CANCEL KEY_CATAB KEY_CLEAR
\& KEY_CLOSE KEY_COMMAND KEY_COPY
\& KEY_CREATE KEY_CTAB KEY_DC
\& KEY_DL KEY_DOWN KEY_EIC
\& KEY_END KEY_ENTER KEY_EOL
\& KEY_EOS KEY_EVENT KEY_EXIT
\& KEY_F0
\& KEY_FIND KEY_HELP KEY_HOME
\& KEY_IC KEY_IL KEY_LEFT
\& KEY_LL KEY_MARK KEY_MAX
\& KEY_MESSAGE KEY_MIN KEY_MOVE
\& KEY_NEXT KEY_NPAGE KEY_OPEN
\& KEY_OPTIONS KEY_PPAGE KEY_PREVIOUS
\& KEY_PRINT KEY_REDO KEY_REFERENCE
\& KEY_REFRESH KEY_REPLACE KEY_RESET
\& KEY_RESIZE KEY_RESTART KEY_RESUME
\& KEY_RIGHT
\& KEY_SAVE KEY_SBEG KEY_SCANCEL
\& KEY_SCOMMAND KEY_SCOPY KEY_SCREATE
\& KEY_SDC KEY_SDL KEY_SELECT
\& KEY_SEND KEY_SEOL KEY_SEXIT
\& KEY_SF KEY_SFIND KEY_SHELP
\& KEY_SHOME KEY_SIC KEY_SLEFT
\& KEY_SMESSAGE KEY_SMOVE KEY_SNEXT
\& KEY_SOPTIONS KEY_SPREVIOUS KEY_SPRINT
\& KEY_SR KEY_SREDO KEY_SREPLACE
\& KEY_SRESET KEY_SRIGHT KEY_SRSUME
\& KEY_SSAVE KEY_SSUSPEND KEY_STAB
\& KEY_SUNDO KEY_SUSPEND KEY_UNDO
\& KEY_UP KEY_MOUSE BUTTON1_RELEASED
\& BUTTON1_PRESSED BUTTON1_CLICKED BUTTON1_DOUBLE_CLICKED
\& BUTTON1_TRIPLE_CLICKED BUTTON1_RESERVED_EVENT BUTTON2_RELEASED
\& BUTTON2_PRESSED BUTTON2_CLICKED BUTTON2_DOUBLE_CLICKED
\& BUTTON2_TRIPLE_CLICKED BUTTON2_RESERVED_EVENT BUTTON3_RELEASED
\& BUTTON3_PRESSED BUTTON3_CLICKED BUTTON3_DOUBLE_CLICKED
\& BUTTON3_TRIPLE_CLICKED BUTTON3_RESERVED_EVENT BUTTON4_RELEASED
\& BUTTON4_PRESSED BUTTON4_CLICKED BUTTON4_DOUBLE_CLICKED
\& BUTTON4_TRIPLE_CLICKED BUTTON4_RESERVED_EVENT BUTTON_CTRL
\& BUTTON_SHIFT BUTTON_ALT ALL_MOUSE_EVENTS
\& REPORT_MOUSE_POSITION NCURSES_MOUSE_VERSION E_OK
\& E_SYSTEM_ERROR E_BAD_ARGUMENT E_POSTED
\& E_CONNECTED E_BAD_STATE E_NO_ROOM
\& E_NOT_POSTED E_UNKNOWN_COMMAND E_NO_MATCH
\& E_NOT_SELECTABLE E_NOT_CONNECTED E_REQUEST_DENIED
\& E_INVALID_FIELD E_CURRENT REQ_LEFT_ITEM
\& REQ_RIGHT_ITEM REQ_UP_ITEM REQ_DOWN_ITEM
\& REQ_SCR_ULINE REQ_SCR_DLINE REQ_SCR_DPAGE
\& REQ_SCR_UPAGE REQ_FIRST_ITEM REQ_LAST_ITEM
\& REQ_NEXT_ITEM REQ_PREV_ITEM REQ_TOGGLE_ITEM
\& REQ_CLEAR_PATTERN REQ_BACK_PATTERN REQ_NEXT_MATCH
\& REQ_PREV_MATCH MIN_MENU_COMMAND MAX_MENU_COMMAND
\& O_ONEVALUE O_SHOWDESC O_ROWMAJOR
\& O_IGNORECASE O_SHOWMATCH O_NONCYCLIC
\& O_SELECTABLE REQ_NEXT_PAGE REQ_PREV_PAGE
\& REQ_FIRST_PAGE REQ_LAST_PAGE REQ_NEXT_FIELD
\& REQ_PREV_FIELD REQ_FIRST_FIELD REQ_LAST_FIELD
\& REQ_SNEXT_FIELD REQ_SPREV_FIELD REQ_SFIRST_FIELD
\& REQ_SLAST_FIELD REQ_LEFT_FIELD REQ_RIGHT_FIELD
\& REQ_UP_FIELD REQ_DOWN_FIELD REQ_NEXT_CHAR
\& REQ_PREV_CHAR REQ_NEXT_LINE REQ_PREV_LINE
\& REQ_NEXT_WORD REQ_PREV_WORD REQ_BEG_FIELD
\& REQ_END_FIELD REQ_BEG_LINE REQ_END_LINE
\& REQ_LEFT_CHAR REQ_RIGHT_CHAR REQ_UP_CHAR
\& REQ_DOWN_CHAR REQ_NEW_LINE REQ_INS_CHAR
\& REQ_INS_LINE REQ_DEL_CHAR REQ_DEL_PREV
\& REQ_DEL_LINE REQ_DEL_WORD REQ_CLR_EOL
\& REQ_CLR_EOF REQ_CLR_FIELD REQ_OVL_MODE
\& REQ_INS_MODE REQ_SCR_FLINE REQ_SCR_BLINE
\& REQ_SCR_FPAGE REQ_SCR_BPAGE REQ_SCR_FHPAGE
\& REQ_SCR_BHPAGE REQ_SCR_FCHAR REQ_SCR_BCHAR
\& REQ_SCR_HFLINE REQ_SCR_HBLINE REQ_SCR_HFHALF
\& REQ_SCR_HBHALF REQ_VALIDATION REQ_NEXT_CHOICE
\& REQ_PREV_CHOICE MIN_FORM_COMMAND MAX_FORM_COMMAND
\& NO_JUSTIFICATION JUSTIFY_LEFT JUSTIFY_CENTER
\& JUSTIFY_RIGHT O_VISIBLE O_ACTIVE
\& O_PUBLIC O_EDIT O_WRAP
\& O_BLANK O_AUTOSKIP O_NULLOK
\& O_PASSOK O_STATIC O_NL_OVERLOAD
\& O_BS_OVERLOAD
.Ve
.ie n .SS "Curses functions not available through Perl ""Curses"""
.el .SS "Curses functions not available through Perl \f(CWCurses\fP"
.IX Subsection "Curses functions not available through Perl Curses"
.Vb 4
\& tstp _putchar fullname scanw wscanw mvscanw mvwscanw ripoffline
\& setupterm setterm set_curterm del_curterm restartterm tparm tputs
\& putp vidputs vidattr mvcur tigetflag tigetnum tigetstr tgetent
\& tgetflag tgetnum tgetstr tgoto tputs
.Ve
.ie n .SS "Curses menu functions not available through Perl ""Curses"""
.el .SS "Curses menu functions not available through Perl \f(CWCurses\fP"
.IX Subsection "Curses menu functions not available through Perl Curses"
.Vb 2
\& set_item_init item_init set_item_term item_term set_menu_init
\& menu_init set_menu_term menu_term
.Ve
.ie n .SS "Curses form functions not available through Perl ""Curses"""
.el .SS "Curses form functions not available through Perl \f(CWCurses\fP"
.IX Subsection "Curses form functions not available through Perl Curses"
.Vb 4
\& new_fieldtype free_fieldtype set_fieldtype_arg
\& set_fieldtype_choice link_fieldtype set_form_init form_init
\& set_form_term form_term set_field_init field_init set_field_term
\& field_term set_field_type field_type
.Ve