86 lines
3.1 KiB
Groff
86 lines
3.1 KiB
Groff
.TH curs_slk 3X ""
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.SH NAME
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\fBcurs_slk\fR: \fBslk_init\fR, \fBslk_set\fR, \fBslk_refresh\fR,
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\fBslk_noutrefresh\fR, \fBslk_label\fR, \fBslk_clear\fR, \fBslk_restore\fR,
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\fBslk_touch\fR, \fBslk_attron\fR, \fBslk_attrset\fR, \fBslk_attroff\fR -
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\fBncurses\fR soft label routines
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.SH SYNOPSIS
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\fB#include <ncurses.h>\fR
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\fBint slk_init(int fmt);\fR
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.br
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\fBint slk_set(int labnum, char *label, int fmt);\fR
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.br
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\fBint slk_refresh(void);\fR
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.br
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\fBint slk_noutrefresh(void);\fR
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.br
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\fBchar *slk_label(int labnum);\fR
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.br
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\fBint slk_clear(void);\fR
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.br
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\fBint slk_restore(void);\fR
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.br
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\fBint slk_touch(void);\fR
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.br
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\fBint slk_attron(chtype attrs);\fR
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.br
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\fBint slk_attrset(chtype attrs);\fR
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.br
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\fBint slk_attroff(chtype attrs);\fR
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.br
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.SH DESCRIPTION
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The slk* functions manipulate the set of soft function-key labels that exist on
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many terminals. For those terminals that do not have soft labels,
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\fBncurses\fR takes over the bottom line of \fBstdscr\fR, reducing the size of
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\fBstdscr\fR and the variable \fBLINES\fR. \fBncurses\fR standardizes on eight
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labels of up to eight characters each.
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The \fBslk_init\fR routine must be called before \fBinitscr\fR or \fBnewterm\fR
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is called. If \fBinitscr\fR eventually uses a line from \fBstdscr\fR to
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emulate the soft labels, then \fIfmt\fR determines how the labels are arranged
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on the screen. Setting \fIfmt\fR to \fB0\fR indicates a 3-2-3 arrangement of
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the labels; \fB1\fR indicates a 4-4 arrangement.
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With the \fBslk_set\fR routine, \fIlabnum\fR is the label number, from \fB1\fR
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to \fB8\fR. \fIlabel\fR is the string to be put on the label, up to eight
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characters in length. A null string or a null pointer sets up a blank label.
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\fIfmt\fR is either \fB0\fR, \fB1\fR, or \fB2\fR, indicating whether the label
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is to be left-justified, centered, or right-justified, respectively, within the
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label.
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The \fBslk_refresh\fR and \fBslk_noutrefresh\fR routines correspond to
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the \fBwrefresh\fR and \fBwnoutrefresh\fR routines.
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The \fBslk_label\fR routine returns the current label for label number
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\fIlabnum\fR, with leading and trailing blanks stripped.
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The \fBslk_clear\fR routine clears the soft labels from the screen.
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The \fBslk_restore\fR routine, restores the soft labels to the screen
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after a \fBslk_clear\fR has been performed.
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The \fBslk_touch\fR routine forces all the soft labels to be output
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the next time a \fBslk_noutrefresh\fR is performed.
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The \fBslk_attron\fR, \fBslk_attrset\fR and \fBslk_attroff\fR routines
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correspond to \fBattron\fR, \fBattrset\fR, and \fBattroff\fR. They
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have an effect only if soft labels are simulated on the bottom line of
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the screen.
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.SH RETURN VALUE
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Routines that return an integer return \fBERR\fR upon failure and an integer
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value other than \fBERR\fR upon successful completion.
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\fBslk_label\fR returns \fBNULL\fR on error.
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.SH NOTES
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Most applications would use \fBslk_noutrefresh\fR because a
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\fBwrefresh\fR is likely to follow soon.
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.SH SEE ALSO
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\fBncurses\fR(3X), \fBcurs_attr\fR(3X), \fBcurs_initscr\fR(3X), \fBcurs_refresh\fR(3X)
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.\"#
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.\"# The following sets edit modes for GNU EMACS
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.\"# Local Variables:
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.\"# mode:nroff
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.\"# fill-column:79
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.\"# End:
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