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-<H1>curs_slk 3x</H1>
-<HR>
+<H1 class="no-header">curs_slk 3x</H1>
<PRE>
-<!-- Manpage converted by man2html 3.0.1 -->
<STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG> <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>
-</PRE>
-<H2>NAME</H2><PRE>
- <STRONG>slk_init</STRONG>, <STRONG>slk_set</STRONG>, <STRONG>slk_refresh</STRONG>, <STRONG>slk_noutrefresh</STRONG>,
+</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
+ <STRONG>slk_init</STRONG>, <STRONG>slk_set</STRONG>, <STRONG>slk_wset</STRONG>, <STRONG>slk_refresh</STRONG>, <STRONG>slk_noutrefresh</STRONG>,
<STRONG>slk_label</STRONG>, <STRONG>slk_clear</STRONG>, <STRONG>slk_restore</STRONG>, <STRONG>slk_touch</STRONG>, <STRONG>slk_attron</STRONG>,
<STRONG>slk_attrset</STRONG>, <STRONG>slk_attroff</STRONG>, <STRONG>slk_attr_on</STRONG>, <STRONG>slk_attr_set</STRONG>,
- <STRONG>slk_attr_off</STRONG>, <STRONG>slk_attr</STRONG>, <STRONG>slk_color</STRONG> - <STRONG>curses</STRONG> soft label
- routines
+ <STRONG>slk_attr_off</STRONG>, <STRONG>slk_attr</STRONG>, <STRONG>slk_color</STRONG>, <STRONG>extended_slk_color</STRONG> -
+ <STRONG>curses</STRONG> soft label routines
-</PRE>
-<H2>SYNOPSIS</H2><PRE>
+</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
<STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
- <STRONG>int</STRONG> <STRONG>slk_init(int</STRONG> <STRONG>fmt);</STRONG>
- <STRONG>int</STRONG> <STRONG>slk_set(int</STRONG> <STRONG>labnum,</STRONG> <STRONG>const</STRONG> <STRONG>char</STRONG> <STRONG>*label,</STRONG> <STRONG>int</STRONG> <STRONG>fmt);</STRONG>
+ <STRONG>int</STRONG> <STRONG>slk_init(int</STRONG> <EM>fmt</EM><STRONG>);</STRONG>
+
+ <STRONG>int</STRONG> <STRONG>slk_set(int</STRONG> <EM>labnum</EM><STRONG>,</STRONG> <STRONG>const</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG><EM>label</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>fmt</EM><STRONG>);</STRONG>
+ <STRONG>int</STRONG> <STRONG>slk_wset(int</STRONG> <EM>labnum</EM><STRONG>,</STRONG> <STRONG>const</STRONG> <STRONG>wchar_t</STRONG> <STRONG>*</STRONG><EM>label</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>fmt</EM><STRONG>);</STRONG>
+
+ <STRONG>char</STRONG> <STRONG>*slk_label(int</STRONG> <EM>labnum</EM><STRONG>);</STRONG>
+
<STRONG>int</STRONG> <STRONG>slk_refresh(void);</STRONG>
<STRONG>int</STRONG> <STRONG>slk_noutrefresh(void);</STRONG>
- <STRONG>char</STRONG> <STRONG>*slk_label(int</STRONG> <STRONG>labnum);</STRONG>
<STRONG>int</STRONG> <STRONG>slk_clear(void);</STRONG>
<STRONG>int</STRONG> <STRONG>slk_restore(void);</STRONG>
<STRONG>int</STRONG> <STRONG>slk_touch(void);</STRONG>
- <STRONG>int</STRONG> <STRONG>slk_attron(const</STRONG> <STRONG>chtype</STRONG> <STRONG>attrs);</STRONG>
- <STRONG>int</STRONG> <STRONG>slk_attroff(const</STRONG> <STRONG>chtype</STRONG> <STRONG>attrs);</STRONG>
- <STRONG>int</STRONG> <STRONG>slk_attrset(const</STRONG> <STRONG>chtype</STRONG> <STRONG>attrs);</STRONG>
- <STRONG>int</STRONG> <STRONG>slk_attr_on(attr_t</STRONG> <STRONG>attrs,</STRONG> <STRONG>void*</STRONG> <STRONG>opts);</STRONG>
- <STRONG>int</STRONG> <STRONG>slk_attr_off(const</STRONG> <STRONG>attr_t</STRONG> <STRONG>attrs,</STRONG> <STRONG>void</STRONG> <STRONG>*</STRONG> <STRONG>opts);</STRONG>
- <STRONG>int</STRONG> <STRONG>slk_attr_set(const</STRONG> <STRONG>attr_t</STRONG> <STRONG>attrs,</STRONG>
- <STRONG>short</STRONG> <STRONG>color_pair_number,</STRONG> <STRONG>void*</STRONG> <STRONG>opts);</STRONG>
+
+ <STRONG>int</STRONG> <STRONG>slk_attron(const</STRONG> <STRONG>chtype</STRONG> <EM>attrs</EM><STRONG>);</STRONG>
+ <STRONG>int</STRONG> <STRONG>slk_attroff(const</STRONG> <STRONG>chtype</STRONG> <EM>attrs</EM><STRONG>);</STRONG>
+ <STRONG>int</STRONG> <STRONG>slk_attrset(const</STRONG> <STRONG>chtype</STRONG> <EM>attrs</EM><STRONG>);</STRONG>
+ <STRONG>int</STRONG> <STRONG>slk_attr_on(attr_t</STRONG> <EM>attrs</EM><STRONG>,</STRONG> <STRONG>void*</STRONG> <EM>opts</EM><STRONG>);</STRONG>
+ <STRONG>int</STRONG> <STRONG>slk_attr_off(const</STRONG> <STRONG>attr_t</STRONG> <EM>attrs</EM><STRONG>,</STRONG> <STRONG>void</STRONG> <STRONG>*</STRONG> <EM>opts</EM><STRONG>);</STRONG>
+ <STRONG>int</STRONG> <STRONG>slk_attr_set(const</STRONG> <STRONG>attr_t</STRONG> <EM>attrs</EM><STRONG>,</STRONG> <STRONG>short</STRONG> <EM>pair</EM><STRONG>,</STRONG> <STRONG>void*</STRONG>
+ <EM>opts</EM><STRONG>);</STRONG>
+
<STRONG>attr_t</STRONG> <STRONG>slk_attr(void);</STRONG>
- <STRONG>int</STRONG> <STRONG>slk_color(short</STRONG> <STRONG>color_pair_number);</STRONG>
+ <STRONG>int</STRONG> <STRONG>slk_color(short</STRONG> <EM>pair</EM><STRONG>);</STRONG>
+ /* extension */
+ <STRONG>int</STRONG> <STRONG>extended_slk_color(int</STRONG> <EM>pair</EM><STRONG>);</STRONG>
-</PRE>
-<
H2>DESCRIPTION</H2><PRE>
+
+<
/PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
The slk* functions manipulate the set of soft function-key
- labels that exist on many terminals. For those terminals
+ labels that exist on many terminals. For those terminals
that do not have soft labels, <STRONG>curses</STRONG> takes over the bottom
- line of <STRONG>stdscr</STRONG>, reducing the size of <STRONG>stdscr</STRONG> and the vari-
- able <STRONG>LINES</STRONG>. <STRONG>curses</STRONG> standardizes on eight labels of up to
- eight characters each. In addition to this, the ncurses
- implementation supports a mode where it simulates 12 la-
- bels 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 doesn't try to use any
- hardware support for this mode.
+ line of <STRONG>stdscr</STRONG>, reducing the size of <STRONG>stdscr</STRONG> and the vari-
+ able <STRONG>LINES</STRONG>. <STRONG>curses</STRONG> standardizes on eight labels of up to
+ eight characters each. In addition to this, the ncurses
+ implementation supports a mode where it simulates 12 la-
+ bels of up to five 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.
+
+</PRE><H3><a name="h3-Initialization">Initialization</a></H3><PRE>
The <STRONG>slk_init</STRONG> routine must be called before <STRONG>initscr</STRONG> or
<STRONG>newterm</STRONG> is called. If <STRONG>initscr</STRONG> eventually uses a line from
<STRONG>stdscr</STRONG> to emulate the soft labels, then <EM>fmt</EM> determines how
- the labels are arranged on the screen. Setting <EM>fmt</EM> to <STRONG>0</STRONG>
- indicates a 3-2-3 arrangement of the labels, <STRONG>1</STRONG> indicates a
- 4-4 arrangement and <STRONG>2</STRONG> indicates the PC like 4-4-4 mode. If
- <STRONG>fmt</STRONG> is set to <STRONG>3</STRONG>, it 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.
-
- The <STRONG>slk_set</STRONG> routine requires <EM>labnum</EM> to be a label number,
- from <STRONG>1</STRONG> to <STRONG>8</STRONG> (resp. <STRONG>12</STRONG>); <EM>label</EM> 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. <EM>fmt</EM> is either <STRONG>0</STRONG>, <STRONG>1</STRONG>, or <STRONG>2</STRONG>, indicating whether the
- label is to be left-justified, centered, or right-justi-
- fied, respectively, within the label.
+ the labels are arranged on the screen:
+
+ <STRONG>0</STRONG> indicates a 3-2-3 arrangement of the labels.
+
+ <STRONG>1</STRONG> indicates a 4-4 arrangement
+
+ <STRONG>2</STRONG> indicates the PC-like 4-4-4 mode.
+
+ <STRONG>3</STRONG> is again the PC-like 4-4-4 mode, but in addition an
+ index line is generated, helping the user to identi-
+ fy the key numbers easily.
+
+
+</PRE><H3><a name="h3-Labels">Labels</a></H3><PRE>
+ The <STRONG>slk_set</STRONG> routine (and the <STRONG>slk_wset</STRONG> routine for the
+ wide-character library) has three parameters:
+
+ <EM>labnum</EM>
+ is the label number, from <STRONG>1</STRONG> to <STRONG>8</STRONG> (12 for <EM>fmt</EM> in
+ <STRONG>slk_init</STRONG> is <STRONG>2</STRONG> or <STRONG>3</STRONG>);
+
+ <EM>label</EM>
+ is be the string to put on the label, up to eight
+ (five for <EM>fmt</EM> in <STRONG>slk_init</STRONG> is <STRONG>2</STRONG> or <STRONG>3</STRONG>) characters in
+ length. A null string or a null pointer sets up a
+ blank label.
+
+ <EM>fmt</EM> is either <STRONG>0</STRONG>, <STRONG>1</STRONG>, or <STRONG>2</STRONG>, indicating whether the label
+ is to be left-justified, centered, or right-justi-
+ fied, respectively, within the label.
+
+ The <STRONG>slk_label</STRONG> routine returns the current label for label
+ number <EM>labnum</EM>, with leading and trailing blanks stripped.
+
+</PRE><H3><a name="h3-Screen-updates">Screen updates</a></H3><PRE>
The <STRONG>slk_refresh</STRONG> and <STRONG>slk_noutrefresh</STRONG> routines correspond to
the <STRONG>wrefresh</STRONG> and <STRONG>wnoutrefresh</STRONG> routines.
- The <STRONG>slk_label</STRONG> routine returns the current label for label
- number <EM>labnum</EM>, with leading and trailing blanks stripped.
-
- The <STRONG>slk_clear</STRONG> routine clears the soft labels from the
+ The <STRONG>slk_clear</STRONG> routine clears the soft labels from the
screen.
- The <STRONG>slk_restore</STRONG> routine restores the soft labels to the
+ The <STRONG>slk_restore</STRONG> routine restores the soft labels to the
screen after a <STRONG>slk_clear</STRONG> has been performed.
- The <STRONG>slk_touch</STRONG> routine forces all the soft labels to be
+ The <STRONG>slk_touch</STRONG> routine forces all the soft labels to be
output the next time a <STRONG>slk_noutrefresh</STRONG> is performed.
+
+</PRE><H3><a name="h3-Video-attributes">Video attributes</a></H3><PRE>
The <STRONG>slk_attron</STRONG>, <STRONG>slk_attrset</STRONG>, <STRONG>slk_attroff</STRONG> and <STRONG>slk_attr</STRONG> rou-
tines correspond to <STRONG>attron</STRONG>, <STRONG>attrset</STRONG>, <STRONG>attroff</STRONG> and <STRONG>attr_get</STRONG>.
- They have an effect only if soft labels are simulated on
- the bottom line of the screen. The default highlight for
+ 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).
- The <STRONG>slk_color</STRONG> routine corresponds to <STRONG>color_set</STRONG>. It has an
- effect only if soft labels are simulated on the bottom
+
+</PRE><H3><a name="h3-Colors">Colors</a></H3><PRE>
+ The <STRONG>slk_color</STRONG> routine corresponds to <STRONG>color_set</STRONG>. It has an
+ effect only if soft labels are simulated on the bottom
line of the screen.
+ Because <STRONG>slk_color</STRONG> accepts only <STRONG>short</STRONG> (signed 16-bit inte-
+ ger) values, this implementation provides <STRONG>extend-</STRONG>
+ <STRONG>ed_slk_color</STRONG> which accepts an integer value, e.g.,
+ 32-bits.
-</PRE>
-<
H2>RETURN VALUE</H2><PRE>
+
+<
/PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
These routines return <STRONG>ERR</STRONG> upon failure and OK (SVr4 speci-
fies only "an integer value other than <STRONG>ERR</STRONG>") upon success-
ful completion.
X/Open defines no error conditions. In this implementa-
tion
- <STRONG>slk_attr</STRONG>
- returns the attribute used for the soft keys.
+ <STRONG>slk_attr</STRONG>
+ returns the attribute used for the soft keys.
- <STRONG>slk_attroff</STRONG>, <STRONG>slk_attron</STRONG>, <STRONG>slk_clear</STRONG>,
- <STRONG>slk_noutrefresh</STRONG>, <STRONG>slk_refresh</STRONG>, <STRONG>slk_touch</STRONG>
- return an error if the terminal or the soft-
- keys were not initialized.
+ <STRONG>slk_attroff</STRONG>, <STRONG>slk_attron</STRONG>, <STRONG>slk_clear</STRONG>, <STRONG>slk_noutrefresh</STRONG>,
+ <STRONG>slk_refresh</STRONG>, <STRONG>slk_touch</STRONG>
+ return an error if the terminal or the softkeys
+ were not initialized.
- <STRONG>slk_attrset</STRONG>
- returns an error if the terminal or the soft-
- keys were not initialized.
+ <STRONG>slk_attrset</STRONG>
+ returns an error if the terminal or the softkeys
+ were not initialized.
- <STRONG>slk_attr_set</STRONG>
- returns an error if the terminal or the soft-
- keys were not initialized, or the color pair
- is outside the range 0..COLOR_PAIRS-1, or opts
- is not null.
+ <STRONG>slk_attr_set</STRONG>
+ returns an error if the terminal or the softkeys
+ were not initialized, or the color pair is outside
+ the range 0..COLOR_PAIRS-1.
- <STRONG>slk_color</STRONG>
- returns an error if the terminal or the soft-
- keys were not initialized, or the color pair
- is outside the range 0..COLOR_PAIRS-1.
+ <STRONG>slk_color</STRONG>
+ returns an error if the terminal or the softkeys
+ were not initialized, or the color pair is outside
+ the range 0..COLOR_PAIRS-1.
- <STRONG>slk_init</STRONG>
- returns an error if the format parameter is
- outside the range 0..3.
+ <STRONG>slk_init</STRONG>
+ returns an error if the format parameter is out-
+ side the range 0..3.
- <STRONG>slk_label</STRONG>
- returns <STRONG>NULL</STRONG> on error.
+ <STRONG>slk_label</STRONG>
+ returns <STRONG>NULL</STRONG> on error.
- <STRONG>slk_set</STRONG>
- returns an error if the terminal or the soft-
- keys were not initialized, or the <EM>labnum</EM> pa-
- rameter 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.
+ <STRONG>slk_set</STRONG>
+ returns an error if the terminal or the softkeys
+ were not initialized, or the <EM>labnum</EM> parameter is
+ outside the range of label counts, or if the for-
+ mat parameter is outside the range 0..2, or if
+ memory for the labels cannot be allocated.
-</PRE>
-<H2>NOTES</H2><PRE>
+</PRE><H2><a name="h2-EXTENSIONS">EXTENSIONS</a></H2><PRE>
+ X/Open Curses documents the <EM>opts</EM> argument as reserved for
+ future use, saying that it must be null. This implementa-
+ tion uses that parameter in ABI 6 for the functions which
+ have a color-pair parameter to support extended color
+ pairs.
+
+ For functions which modify the color, e.g., <STRONG>slk_at-</STRONG>
+ <STRONG>tr_set</STRONG>, if <EM>opts</EM> is set it is treated as a pointer to <STRONG>int</STRONG>,
+ and used to set the color pair instead of the <STRONG>short</STRONG>
+ pair parameter.
+
+
+</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
Most applications would use <STRONG>slk_noutrefresh</STRONG> because a <STRONG>wre-</STRONG>
<STRONG>fresh</STRONG> is likely to follow soon.
-</PRE>
-<H2>PORTABILITY</H2><PRE>
- The XSI Curses standard, Issue 4, describes these func-
- tions. It changes the argument type of the attribute-ma-
- nipulation functions <STRONG>slk_attron</STRONG>, <STRONG>slk_attroff</STRONG>, <STRONG>slk_attrset</STRONG>
- to be <STRONG>attr_t</STRONG>, and adds <STRONG>const</STRONG> qualifiers. The format codes
- <STRONG>2</STRONG> and <STRONG>3</STRONG> for <STRONG>slk_init()</STRONG> and the function <STRONG>slk_attr</STRONG> are spe-
- cific to ncurses.
+</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
+ The XSI Curses standard, Issue 4, described the soft-key
+ functions, with some differences from SVr4 curses:
+ <STRONG>o</STRONG> It added functions like the SVr4 attribute-manipula-
+ tion functions <STRONG>slk_attron</STRONG>, <STRONG>slk_attroff</STRONG>, <STRONG>slk_attrset</STRONG>,
+ but which use <STRONG>attr_t</STRONG> parameters (rather than <STRONG>chtype</STRONG>),
+ along with a reserved <EM>opts</EM> parameter.
-</PRE>
-<H2>SEE ALSO</H2><PRE>
+ Two of these new functions (unlike the SVr4 functions)
+ have no provision for color: <STRONG>slk_attr_on</STRONG> and <STRONG>slk_at-</STRONG>
+ <STRONG>tr_off</STRONG>.
+
+ The third function (<STRONG>slk_attr_set</STRONG>) has a color-pair pa-
+ rameter.
+
+ <STRONG>o</STRONG> It added <STRONG>const</STRONG> qualifiers to parameters (unnecessari-
+ ly), and
+
+ <STRONG>o</STRONG> It added <STRONG>slk_color</STRONG>.
+
+ The format codes <STRONG>2</STRONG> and <STRONG>3</STRONG> for <STRONG>slk_init</STRONG> and the function
+ <STRONG>slk_attr</STRONG> are specific to ncurses.
+
+ X/Open Curses does not specify a limit for the number of
+ colors and color pairs which a terminal can support. How-
+ ever, in its use of <STRONG>short</STRONG> for the parameters, it carries
+ over SVr4's implementation detail for the compiled termin-
+ fo database, which uses signed 16-bit numbers. This im-
+ plementation provides extended versions of those functions
+ which use <STRONG>short</STRONG> parameters, allowing applications to use
+ larger color- and pair-numbers.
+
+
+</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
<STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>, <STRONG><A HREF="curs_initscr.3x.html">curs_initscr(3x)</A></STRONG>, <STRONG>curs_re-</STRONG>
- <STRONG><A HREF="curs_refresh.3x.html">fresh(3x)</A></STRONG>
+ <STRONG><A HREF="curs_refresh.3x.html">fresh(3x)</A></STRONG>, <STRONG><A HREF="curs_variables.3x.html">curs_variables(3x)</A></STRONG>.
<STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>
</PRE>
-<HR>
-<ADDRESS>
-Man(1) output converted with
-<a href="http://www.oac.uci.edu/indiv/ehood/man2html.html">man2html</a>
-</ADDRESS>
+<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-Labels">Labels</a></li>
+<li><a href="#h3-Screen-updates">Screen updates</a></li>
+<li><a href="#h3-Video-attributes">Video attributes</a></li>
+<li><a href="#h3-Colors">Colors</a></li>
+</ul>
+</li>
+<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
+<li><a href="#h2-EXTENSIONS">EXTENSIONS</a></li>
+<li><a href="#h2-NOTES">NOTES</a></li>
+<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
+<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
+</ul>
+</div>
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