191 lines
7.7 KiB
Plaintext
191 lines
7.7 KiB
Plaintext
.\"***************************************************************************
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.\" Copyright (c) 1998-2006,2007 Free Software Foundation, Inc. *
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.\" *
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.\" Permission is hereby granted, free of charge, to any person obtaining a *
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.\" copy of this software and associated documentation files (the *
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.\" "Software"), to deal in the Software without restriction, including *
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.\" without limitation the rights to use, copy, modify, merge, publish, *
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.\" distribute, distribute with modifications, sublicense, and/or sell *
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.\" copies of the Software, and to permit persons to whom the Software is *
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.\" furnished to do so, subject to the following conditions: *
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.\" *
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.\" The above copyright notice and this permission notice shall be included *
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.\" in all copies or substantial portions of the Software. *
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.\" *
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.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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.\" IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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.\" DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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.\" OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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.\" THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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.\" *
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.\" Except as contained in this notice, the name(s) of the above copyright *
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.\" holders shall not be used in advertising or otherwise to promote the *
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.\" sale, use or other dealings in this Software without prior written *
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.\" authorization. *
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.\"***************************************************************************
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.\"
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.\" $Id: panel.3x,v 1.14 2007/05/12 20:45:20 tom Exp $
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.TH panel 3X ""
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.ds n 5
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.ds d @TERMINFO@
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.SH NAME
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panel - panel stack extension for curses
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.SH SYNOPSIS
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\fB#include <panel.h>\fR
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.P
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\fBcc [flags] sourcefiles -lpanel -lncurses\fR
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.P
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\fBPANEL *new_panel(WINDOW *win)\fR
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.br
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\fBint bottom_panel(PANEL *pan)\fR
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.br
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\fBint top_panel(PANEL *pan)\fR
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.br
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\fBint show_panel(PANEL *pan)\fR
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.br
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\fBvoid update_panels();\fR
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.br
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\fBint hide_panel(PANEL *pan)\fR
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.br
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\fBWINDOW *panel_window(const PANEL *pan)\fR
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.br
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\fBint replace_panel(PANEL *pan, WINDOW *window)\fR
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.br
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\fBint move_panel(PANEL *pan, int starty, int startx)\fR
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.br
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\fBint panel_hidden(const PANEL *pan)\fR
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.br
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\fBPANEL *panel_above(const PANEL *pan)\fR
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.br
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\fBPANEL *panel_below(const PANEL *pan)\fR
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.br
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\fBint set_panel_userptr(PANEL *pan, const void *ptr)\fR
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.br
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\fBconst void *panel_userptr(const PANEL *pan)\fR
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.br
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\fBint del_panel(PANEL *pan)\fR
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.br
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.SH DESCRIPTION
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Panels are \fBcurses\fR(3X) windows with the added feature of
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depth. Panel functions allow the use of stacked windows and ensure
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the proper portions of each window and the curses \fBstdscr\fR window are
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hidden or displayed when panels are added, moved, modified or removed.
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The set of currently visible panels is the stack of panels. The
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\fBstdscr\fR window is beneath all panels, and is not considered part
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of the stack.
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.P
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A window is associated with every panel. The panel routines enable
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you to create, move, hide, and show panels, as well as position a
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panel at any desired location in the stack.
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.P
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Panel routines are a functional layer added to \fBcurses\fR(3X), make only
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high-level curses calls, and work anywhere terminfo curses does.
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.SH FUNCTIONS
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.TP
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.B new_panel(win)
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allocates a \fBPANEL\fR structure, associates it with
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\fBwin\fR, places the panel on the top of the stack (causes it
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to be displayed above any other panel) and returns a
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pointer to the new panel.
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.TP
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.B update_panels()
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refreshes the virtual screen to reflect the relations between the
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panels in the stack, but does not call doupdate() to refresh the
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physical screen. Use this function and not wrefresh or wnoutrefresh.
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update_panels() may be called more than once before a call to
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doupdate(), but doupdate() is the function responsible for updating
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the physical screen.
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.TP
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.B del_panel(pan)
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removes the given panel from the stack and deallocates the
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\fBPANEL\fR structure (but not its associated window).
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.TP
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.B hide_panel(pan)
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removes the given panel from the panel stack and thus hides it from
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view. The \fBPANEL\fR structure is not lost, merely removed from the stack.
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.TP
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.B panel_hidden(pan)
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returns TRUE if the panel is in the panel stack,
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FALSE if it is not.
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If the panel is a null pointer, return ERR.
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.TP
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.B show_panel(pan)
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makes a hidden panel visible by placing it on top of the panels in the
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panel stack. See COMPATIBILITY below.
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.TP
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.B top_panel(pan)
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puts the given visible panel on top of all panels in the stack. See
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COMPATIBILITY below.
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.TP
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.B bottom_panel(pan)
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puts panel at the bottom of all panels.
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.TP
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.B move_panel(pan,starty,startx)
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moves the given panel window so that its upper-left corner is at
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\fBstarty\fR, \fBstartx\fR. It does not change the position of the
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panel in the stack. Be sure to use this function, not \fBmvwin()\fR,
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to move a panel window.
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.TP
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.B replace_panel(pan,window)
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replaces the current window of panel with \fBwindow\fR (useful, for
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example if you want to resize a panel; if you're using \fBncurses\fR,
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you can call \fBreplace_panel\fR on the output of \fBwresize\fR(3X)).
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It does not change the position of the panel in the stack.
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.TP
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.B panel_above(pan)
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returns a pointer to the panel above pan. If the panel argument is
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\fB(PANEL *)0\fR, it returns a pointer to the bottom panel in the stack.
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.TP
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.B panel_below(pan)
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returns a pointer to the panel just below pan. If the panel argument
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is \fB(PANEL *)0\fR, it returns a pointer to the top panel in the stack.
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.TP
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.B set_panel_userptr(pan,ptr)
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sets the panel's user pointer.
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.TP
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.B panel_userptr(pan)
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returns the user pointer for a given panel.
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.TP
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.B panel_window(pan)
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returns a pointer to the window of the given panel.
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.SH DIAGNOSTICS
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Each routine that returns a pointer returns \fBNULL\fR if an error
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occurs. Each routine that returns an int value returns \fBOK\fR if it
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executes successfully and \fBERR\fR if not.
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.SH COMPATIBILITY
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Reasonable care has been taken to ensure compatibility
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with the native panel facility introduced in SVr3.2 (inspection of
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the SVr4 manual pages suggests the programming interface is unchanged).
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The \fBPANEL\fR data structures are merely similar. The programmer
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is cautioned not to directly use \fBPANEL\fR fields.
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.P
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The functions \fBshow_panel()\fR and \fBtop_panel()\fR are identical
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in this implementation, and work equally well with displayed or hidden
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panels. In the native System V implementation, \fBshow_panel()\fR is
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intended for making a hidden panel visible (at the top of the stack)
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and \fBtop_panel()\fR is intended for making an already-visible panel
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move to the top of the stack. You are cautioned to use the correct
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function to ensure compatibility with native panel libraries.
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.SH NOTE
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In your library list, libpanel.a should be before libncurses.a; that is,
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you want to say `-lpanel -lncurses', not the other way around (which would
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usually give a link-error).
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.SH FILES
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.P
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panel.h
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interface for the panels library
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.P
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libpanel.a
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the panels library itself
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.SH SEE ALSO
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\fBcurses\fR(3X)
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.PP
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This describes \fBncurses\fR
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version @NCURSES_MAJOR@.@NCURSES_MINOR@ (patch @NCURSES_PATCH@).
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.SH AUTHOR
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Originally written by Warren Tucker <wht@n4hgf.mt-park.ga.us>,
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primarily to assist in porting u386mon to systems without a native
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panels library. Repackaged for ncurses by Zeyd ben-Halim.
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