243 lines
8.1 KiB
Plaintext
243 lines
8.1 KiB
Plaintext
.\"***************************************************************************
|
|
.\" Copyright (c) 1998-2007,2010 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 *
|
|
.\" "Software"), to deal in the Software without restriction, including *
|
|
.\" without limitation the rights to use, copy, modify, merge, publish, *
|
|
.\" distribute, distribute with modifications, sublicense, and/or sell *
|
|
.\" copies of the Software, and to permit persons to whom the Software is *
|
|
.\" furnished to do so, subject to the following conditions: *
|
|
.\" *
|
|
.\" The above copyright notice and this permission notice shall be included *
|
|
.\" in all copies or substantial portions of the Software. *
|
|
.\" *
|
|
.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
|
|
.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
|
|
.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
|
|
.\" IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
|
|
.\" DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
|
|
.\" OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
|
|
.\" THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
|
|
.\" *
|
|
.\" Except as contained in this notice, the name(s) of the above copyright *
|
|
.\" holders shall not be used in advertising or otherwise to promote the *
|
|
.\" sale, use or other dealings in this Software without prior written *
|
|
.\" authorization. *
|
|
.\"***************************************************************************
|
|
.\"
|
|
.\" $Id: curs_slk.3x,v 1.22 2010/12/04 18:38:55 tom Exp $
|
|
.TH curs_slk 3X ""
|
|
.na
|
|
.hy 0
|
|
.SH NAME
|
|
\fBslk_init\fR,
|
|
\fBslk_set\fR,
|
|
\fBslk_wset\fR,
|
|
\fBslk_refresh\fR,
|
|
\fBslk_noutrefresh\fR,
|
|
\fBslk_label\fR,
|
|
\fBslk_clear\fR,
|
|
\fBslk_restore\fR,
|
|
\fBslk_touch\fR,
|
|
\fBslk_attron\fR,
|
|
\fBslk_attrset\fR,
|
|
\fBslk_attroff\fR,
|
|
\fBslk_attr_on\fR,
|
|
\fBslk_attr_set\fR,
|
|
\fBslk_attr_off\fR,
|
|
\fBslk_attr\fR,
|
|
\fBslk_color\fR \- \fBcurses\fR soft label routines
|
|
.ad
|
|
.hy
|
|
.SH SYNOPSIS
|
|
\fB#include <curses.h>\fR
|
|
.sp
|
|
\fBint slk_init(int fmt);\fR
|
|
.br
|
|
\fBint slk_set(int labnum, const char *label, int fmt);\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
|
|
.br
|
|
\fBint slk_attron(const chtype attrs);\fR
|
|
.br
|
|
\fBint slk_attroff(const chtype attrs);\fR
|
|
.br
|
|
\fBint slk_attrset(const chtype attrs);\fR
|
|
.br
|
|
\fBint slk_attr_on(attr_t attrs, void* opts);\fR
|
|
.br
|
|
\fBint slk_attr_off(const attr_t attrs, void * opts);\fR
|
|
.br
|
|
\fBint slk_attr_set(const attr_t attrs, short color_pair, void* opts);\fR
|
|
.br
|
|
\fBattr_t slk_attr(void);\fR
|
|
.br
|
|
\fBint slk_color(short color_pair);\fR
|
|
.br
|
|
\fBint slk_wset(int labnum, const wchar_t *label, int fmt);\fR
|
|
.br
|
|
.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,
|
|
\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
|
|
implementation supports a mode where it simulates 12 labels of up to five
|
|
characters each.
|
|
This is useful for today's 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.
|
|
.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:
|
|
.RS
|
|
.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.
|
|
.RE
|
|
.PP
|
|
The \fBslk_set\fR routine
|
|
(and the \fBslk_wset\fR routine for the wide-character library)
|
|
has three parameters:
|
|
.RS
|
|
.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.
|
|
.RE
|
|
.PP
|
|
The \fBslk_refresh\fR and \fBslk_noutrefresh\fR routines correspond to
|
|
the \fBwrefresh\fR and \fBwnoutrefresh\fR routines.
|
|
.PP
|
|
The \fBslk_label\fR routine returns the current label for label number
|
|
\fIlabnum\fR, with leading and trailing blanks stripped.
|
|
.PP
|
|
The \fBslk_clear\fR routine clears the soft labels from the screen.
|
|
.PP
|
|
The \fBslk_restore\fR routine restores the soft labels to the screen
|
|
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_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
|
|
System V curses, which does not document this fact).
|
|
.PP
|
|
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
|
|
These routines return \fBERR\fR upon failure and OK (SVr4 specifies only "an
|
|
integer value other than \fBERR\fR") upon successful completion.
|
|
.PP
|
|
X/Open defines no error conditions.
|
|
In this implementation
|
|
.RS
|
|
.TP 5
|
|
\fBslk_attr\fR
|
|
returns the attribute used for the soft keys.
|
|
.TP 5
|
|
.na
|
|
.hy 0
|
|
\fBslk_attroff\fP, \fBslk_attron\fP, \fBslk_clear\fP, \fBslk_noutrefresh\fP, \fBslk_refresh\fP, \fBslk_touch\fP
|
|
.ad
|
|
.hy
|
|
return an error
|
|
if the terminal or the softkeys were not initialized.
|
|
.TP 5
|
|
\fBslk_attrset\fP
|
|
returns an error
|
|
if the terminal or the softkeys were not initialized.
|
|
.TP 5
|
|
\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,
|
|
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.
|
|
.TP 5
|
|
\fBslk_init\fR
|
|
returns an error
|
|
if the format parameter is outside the range 0..3.
|
|
.TP 5
|
|
\fBslk_label\fR
|
|
returns \fBNULL\fR on error.
|
|
.TP 5
|
|
\fBslk_set\fP
|
|
returns an error
|
|
if the terminal or the softkeys were not initialized, or
|
|
the \fIlabnum\fP parameter is outside the range of label counts, or
|
|
if the format parameter is outside the range 0..2, or if
|
|
memory for the labels cannot be allocated.
|
|
.RE
|
|
.SH NOTES
|
|
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
|
|
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),
|
|
\fBcurs_variables\fR(3X).
|