ncurses 6.0 - patch 20170318

[ncurses.git] / man / curs_slk.3x

diff --git a/man/curs_slk.3x b/man/curs_slk.3x
index 6361268b19d994d4a5dd9604c0db5c8a0c83f828..d1927a107a2927a09437966cfc84811b40b0a132 100644 (file)
--- a/man/curs_slk.3x
+++ b/man/curs_slk.3x
@@ -1,5 +1,5 @@
 .\"***************************************************************************
 .\"***************************************************************************

-.\" Copyright (c) 1998-2006,2007 Free Software Foundation, Inc.              *
+.\" Copyright (c) 1998-2016,2017 Free Software Foundation, Inc.              *

 .\"                                                                          *
 .\" Permission is hereby granted, free of charge, to any person obtaining a  *
 .\" copy of this software and associated documentation files (the            *
 .\"                                                                          *
 .\" Permission is hereby granted, free of charge, to any person obtaining a  *
 .\" copy of this software and associated documentation files (the            *


@@ -26,13 +26,17 @@
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"

-.\" $Id: curs_slk.3x,v 1.16 2007/06/02 20:40:07 tom Exp $
+.\" $Id: curs_slk.3x,v 1.29 2017/03/18 01:00:30 tom Exp $

 .TH curs_slk 3X ""
 .TH curs_slk 3X ""

+.de bP
+.IP \(bu 4
+..

 .na
 .hy 0
 .SH NAME
 \fBslk_init\fR,
 \fBslk_set\fR,
 .na
 .hy 0
 .SH NAME
 \fBslk_init\fR,
 \fBslk_set\fR,

+\fBslk_wset\fR,

 \fBslk_refresh\fR,
 \fBslk_noutrefresh\fR,
 \fBslk_label\fR,
 \fBslk_refresh\fR,
 \fBslk_noutrefresh\fR,
 \fBslk_label\fR,


@@ -46,28 +50,30 @@
 \fBslk_attr_set\fR,
 \fBslk_attr_off\fR,
 \fBslk_attr\fR,
 \fBslk_attr_set\fR,
 \fBslk_attr_off\fR,
 \fBslk_attr\fR,

-\fBslk_color\fR - \fBcurses\fR soft label routines
+\fBslk_color\fR \- \fBcurses\fR soft label routines

 .ad
 .hy
 .SH SYNOPSIS
 \fB#include <curses.h>\fR
 .sp
 \fBint slk_init(int fmt);\fR
 .ad
 .hy
 .SH SYNOPSIS
 \fB#include <curses.h>\fR
 .sp
 \fBint slk_init(int fmt);\fR

-.br
+.sp

 \fBint slk_set(int labnum, const char *label, int fmt);\fR
 .br
 \fBint slk_set(int labnum, const char *label, int fmt);\fR
 .br

+\fBint slk_wset(int labnum, const wchar_t *label, int fmt);\fR
+.sp
+\fBchar *slk_label(int labnum);\fR
+.sp

 \fBint slk_refresh(void);\fR
 .br
 \fBint slk_noutrefresh(void);\fR
 .br
 \fBint slk_refresh(void);\fR
 .br
 \fBint slk_noutrefresh(void);\fR
 .br

-\fBchar *slk_label(int labnum);\fR
-.br

 \fBint slk_clear(void);\fR
 .br
 \fBint slk_restore(void);\fR
 .br
 \fBint slk_touch(void);\fR
 \fBint slk_clear(void);\fR
 .br
 \fBint slk_restore(void);\fR
 .br
 \fBint slk_touch(void);\fR

-.br
+.sp

 \fBint slk_attron(const chtype attrs);\fR
 .br
 \fBint slk_attroff(const chtype attrs);\fR
 \fBint slk_attron(const chtype attrs);\fR
 .br
 \fBint slk_attroff(const chtype attrs);\fR


@@ -78,48 +84,82 @@
 .br
 \fBint slk_attr_off(const attr_t attrs, void * opts);\fR
 .br
 .br
 \fBint slk_attr_off(const attr_t attrs, void * opts);\fR
 .br

-\fBint slk_attr_set(const attr_t attrs,\fR
-.br
-       \fBshort color_pair_number, void* opts);\fR
-.br
+\fBint slk_attr_set(const attr_t attrs, short pair, void* opts);\fR
+.sp

 \fBattr_t slk_attr(void);\fR
 \fBattr_t slk_attr(void);\fR

-.br
-\fBint slk_color(short color_pair_number);\fR
-.br
+.sp
+\fBint slk_color(short pair);\fR

 .SH DESCRIPTION
 The slk* functions manipulate the set of soft function-key labels that exist on
 .SH DESCRIPTION
 The slk* functions manipulate the set of soft function-key labels that exist on

-many terminals.  For those terminals that do not have soft labels,
+many terminals.
+For those terminals that do not have soft labels,

 \fBcurses\fR takes over the bottom line of \fBstdscr\fR, reducing the size of
 \fBcurses\fR takes over the bottom line of \fBstdscr\fR, reducing the size of

-\fBstdscr\fR and the variable \fBLINES\fR.  \fBcurses\fR standardizes on eight
-labels of up to eight characters each. In addition to this, the ncurses
+\fBstdscr\fR and the variable \fBLINES\fR.
+\fBcurses\fR standardizes on eight
+labels of up to eight characters each.
+In addition to this, the ncurses

 implementation supports a mode where it simulates 12 labels of up to five
 implementation supports a mode where it simulates 12 labels of up to five

-characters each. This is most common for todays PC like enduser devices.
-Please note that ncurses simulates this mode by taking over up to two lines at
-the bottom of the screen, it does not try to use any hardware support for this
+characters each.
+This is useful for PC-like enduser devices.
+ncurses simulates this mode by taking over up to two lines at
+the bottom of the screen;
+it does not try to use any hardware support for this

 mode.
 mode.

+.SS Initialization

 .PP
 The \fBslk_init\fR routine must be called before \fBinitscr\fR or \fBnewterm\fR
 .PP
 The \fBslk_init\fR routine must be called before \fBinitscr\fR or \fBnewterm\fR

-is called.  If \fBinitscr\fR eventually uses a line from \fBstdscr\fR to
-emulate the soft labels, then \fIfmt\fR determines how the labels are arranged
-on the screen.  Setting \fIfmt\fR to \fB0\fR indicates a 3-2-3 arrangement of
-the labels, \fB1\fR indicates a 4-4 arrangement and \fB2\fR indicates the
-PC like 4-4-4 mode. If \fBfmt\fR is set to \fB3\fR, it is again the PC like
-4-4-4 mode, but in addition an index line is generated, helping the user to
+is called.
+If \fBinitscr\fR eventually uses a line from \fBstdscr\fR to
+emulate the soft labels,
+then \fIfmt\fR determines how the labels are arranged on the screen:
+.RS 3
+.TP 3
+.B 0
+indicates a 3\-2\-3 arrangement of
+the labels.
+.TP 3
+.B 1
+indicates a 4\-4 arrangement
+.TP 3
+.B 2
+indicates the PC-like 4\-4\-4 mode.
+.TP 3
+.B 3
+is again the PC-like 4\-4\-4 mode,
+but in addition an index line is generated, helping the user to

 identify the key numbers easily.
 identify the key numbers easily.

+.RE
+.SS Labels

 .PP
 .PP

-The \fBslk_set\fR routine requires \fIlabnum\fR to be a label number,
-from \fB1\fR to \fB8\fR (resp. \fB12\fR); \fIlabel\fR must be the string
-to be put on the label, up to eight (resp. five) characters in length.
-A null string or a null pointer sets up a blank label. \fIfmt\fR is either
-\fB0\fR, \fB1\fR, or \fB2\fR, indicating whether the label is  to be
+The \fBslk_set\fR routine
+(and the \fBslk_wset\fR routine for the wide-character library)
+has three parameters:
+.RS 3
+.TP 5
+.I labnum
+is the label number, from \fB1\fR to \fB8\fR
+(12 for \fIfmt\fP in \fBslk_init\fP is \fB2\fP or \fB3\fP);
+.TP
+.I label
+is be the string to put on the label,
+up to eight
+(five for \fIfmt\fP in \fBslk_init\fP is \fB2\fP or \fB3\fP)
+characters in length.
+A null string or a null pointer sets up a blank label.
+.TP
+.I fmt
+is either
+\fB0\fR, \fB1\fR, or \fB2\fR, indicating whether the label is to be

 left-justified, centered, or right-justified, respectively, within the
 label.
 left-justified, centered, or right-justified, respectively, within the
 label.

-.PP
-The \fBslk_refresh\fR and \fBslk_noutrefresh\fR routines correspond to
-the \fBwrefresh\fR and \fBwnoutrefresh\fR routines.
+.RE

 .PP
 The \fBslk_label\fR routine returns the current label for label number
 \fIlabnum\fR, with leading and trailing blanks stripped.
 .PP
 The \fBslk_label\fR routine returns the current label for label number
 \fIlabnum\fR, with leading and trailing blanks stripped.

+.SS Screen updates
+.PP
+The \fBslk_refresh\fR and \fBslk_noutrefresh\fR routines correspond to
+the \fBwrefresh\fR and \fBwnoutrefresh\fR routines.

 .PP
 The \fBslk_clear\fR routine clears the soft labels from the screen.
 .PP
 .PP
 The \fBslk_clear\fR routine clears the soft labels from the screen.
 .PP


@@ -128,14 +168,18 @@ after a \fBslk_clear\fR has been performed.
 .PP
 The \fBslk_touch\fR routine forces all the soft labels to be output
 the next time a \fBslk_noutrefresh\fR is performed.
 .PP
 The \fBslk_touch\fR routine forces all the soft labels to be output
 the next time a \fBslk_noutrefresh\fR is performed.

+.SS Video attributes

 .PP
 The \fBslk_attron\fR, \fBslk_attrset\fR, \fBslk_attroff\fR and \fBslk_attr\fR
 routines correspond to \fBattron\fR, \fBattrset\fR, \fBattroff\fR and \fBattr_get\fR.
 They have an effect only if soft labels are simulated on the bottom line of
 .PP
 The \fBslk_attron\fR, \fBslk_attrset\fR, \fBslk_attroff\fR and \fBslk_attr\fR
 routines correspond to \fBattron\fR, \fBattrset\fR, \fBattroff\fR and \fBattr_get\fR.
 They have an effect only if soft labels are simulated on the bottom line of

-the screen.  The default highlight for soft keys is A_STANDOUT (as in
+the screen.
+The default highlight for soft keys is A_STANDOUT (as in

 System V curses, which does not document this fact).
 System V curses, which does not document this fact).

+.SS Colors

 .PP
 .PP

-The \fBslk_color\fR routine corresponds to \fBcolor_set\fR. It has an effect only
+The \fBslk_color\fR routine corresponds to \fBcolor_set\fR.
+It has an effect only

 if soft labels are simulated on the bottom line of the screen.
 .
 .SH RETURN VALUE
 if soft labels are simulated on the bottom line of the screen.
 .
 .SH RETURN VALUE


@@ -144,7 +188,7 @@ integer value other than \fBERR\fR") upon successful completion.
 .PP
 X/Open defines no error conditions.
 In this implementation
 .PP
 X/Open defines no error conditions.
 In this implementation

-.RS
+.RS 3

 .TP 5
 \fBslk_attr\fR
 returns the attribute used for the soft keys.
 .TP 5
 \fBslk_attr\fR
 returns the attribute used for the soft keys.


@@ -164,13 +208,13 @@ if the terminal or the softkeys were not initialized.
 \fBslk_attr_set\fP
 returns an error
 if the terminal or the softkeys were not initialized, or
 \fBslk_attr_set\fP
 returns an error
 if the terminal or the softkeys were not initialized, or

-the color pair is outside the range 0..COLOR_PAIRS-1,
+the color pair is outside the range 0..COLOR_PAIRS\-1,

 or opts is not null.
 .TP 5
 \fBslk_color\fP
 returns an error
 if the terminal or the softkeys were not initialized, or
 or opts is not null.
 .TP 5
 \fBslk_color\fP
 returns an error
 if the terminal or the softkeys were not initialized, or

-the color pair is outside the range 0..COLOR_PAIRS-1.
+the color pair is outside the range 0..COLOR_PAIRS\-1.

 .TP 5
 \fBslk_init\fR
 returns an error
 .TP 5
 \fBslk_init\fR
 returns an error


@@ -190,16 +234,27 @@ memory for the labels cannot be allocated.
 Most applications would use \fBslk_noutrefresh\fR because a
 \fBwrefresh\fR is likely to follow soon.
 .SH PORTABILITY
 Most applications would use \fBslk_noutrefresh\fR because a
 \fBwrefresh\fR is likely to follow soon.
 .SH PORTABILITY

-The XSI Curses standard, Issue 4, describes these functions.  It changes the
-argument type of the attribute-manipulation functions \fBslk_attron\fR,
-\fBslk_attroff\fR, \fBslk_attrset\fR to be \fBattr_t\fR, and adds \fBconst\fR
-qualifiers. The format codes \fB2\fR and \fB3\fR for \fBslk_init()\fR and the
+The XSI Curses standard, Issue 4, described the soft-key functions,
+with some differences from SVr4 curses:
+.bP
+It
+added functions like the SVr4
+the attribute-manipulation functions \fBslk_attron\fR,
+\fBslk_attroff\fR, \fBslk_attrset\fR
+which use \fBattr_t\fR parameters,
+along with a reserved \fIopts\fP parameter.
+.IP
+One of these new functions (\fBslk_attr_set\fP) also has a color-pair parameter.
+.bP
+It added \fBconst\fR qualifiers to parameters (unnecessarily), and
+.bP
+It added \fBslk_color\fP.
+.PP
+The format codes \fB2\fR and \fB3\fR for \fBslk_init\fR and the

 function \fBslk_attr\fR are specific to ncurses.
 .SH SEE ALSO
 function \fBslk_attr\fR are specific to ncurses.
 .SH SEE ALSO

-\fBcurses\fR(3X), \fBcurs_attr\fR(3X), \fBcurs_initscr\fR(3X), \fBcurs_refresh\fR(3X)
-.\"#
-.\"# The following sets edit modes for GNU EMACS
-.\"# Local Variables:
-.\"# mode:nroff
-.\"# fill-column:79
-.\"# End:
+\fBcurses\fR(3X),
+\fBcurs_attr\fR(3X),
+\fBcurs_initscr\fR(3X),
+\fBcurs_refresh\fR(3X),
+\fBcurs_variables\fR(3X).