diff --git a/doc/html/man/panel.3x.html b/doc/html/man/panel.3x.html
index 52e1f68..58ad42d 100644
--- a/doc/html/man/panel.3x.html
+++ b/doc/html/man/panel.3x.html
@@ -1,6 +1,7 @@
-<!-- 
+<!--
   ****************************************************************************
-  * Copyright (c) 1998-2020,2015 Free Software Foundation, Inc.              *
+  * Copyright 2018-2023,2024 Thomas E. Dickey                                *
+  * Copyright 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            *
@@ -26,224 +27,279 @@
   * sale, use or other dealings in this Software without prior written       *
   * authorization.                                                           *
   ****************************************************************************
-  * @Id: panel.3x,v 1.18 2015/04/11 10:23:49 tom Exp @
+  * @Id: panel.3x,v 1.63 2024/03/16 15:35:01 tom Exp @
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-<H1 class="no-header">panel 3x</H1>
+<H1 class="no-header">panel 3x 2024-03-16 ncurses 6.5 Library calls</H1>
 <PRE>
-<STRONG><A HREF="panel.3x.html">panel(3x)</A></STRONG>                                                     <STRONG><A HREF="panel.3x.html">panel(3x)</A></STRONG>
+<STRONG><A HREF="panel.3x.html">panel(3x)</A></STRONG>                        Library calls                       <STRONG><A HREF="panel.3x.html">panel(3x)</A></STRONG>
 
 
 
 
-</PRE>
-<H2><a name="h2-NAME">NAME</a></H2><PRE>
-       panel - panel stack extension for curses
+</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
+       panel - panel stack extension for <EM>curses</EM>
 
 
-</PRE>
-<H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
+</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
        <STRONG>#include</STRONG> <STRONG>&lt;panel.h&gt;</STRONG>
 
-       <STRONG>cc</STRONG> <STRONG>[flags]</STRONG> <STRONG>sourcefiles</STRONG> <STRONG>-lpanel</STRONG> <STRONG>-lncurses</STRONG>
+       <STRONG>PANEL</STRONG> <STRONG>*new_panel(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>);</STRONG>
 
-       <STRONG>PANEL</STRONG> <STRONG>*new_panel(WINDOW</STRONG> <STRONG>*win)</STRONG>
-       <STRONG>int</STRONG> <STRONG>bottom_panel(PANEL</STRONG> <STRONG>*pan)</STRONG>
-       <STRONG>int</STRONG> <STRONG>top_panel(PANEL</STRONG> <STRONG>*pan)</STRONG>
-       <STRONG>int</STRONG> <STRONG>show_panel(PANEL</STRONG> <STRONG>*pan)</STRONG>
-       <STRONG>void</STRONG> <STRONG>update_panels();</STRONG>
-       <STRONG>int</STRONG> <STRONG>hide_panel(PANEL</STRONG> <STRONG>*pan)</STRONG>
-       <STRONG>WINDOW</STRONG> <STRONG>*panel_window(const</STRONG> <STRONG>PANEL</STRONG> <STRONG>*pan)</STRONG>
-       <STRONG>int</STRONG> <STRONG>replace_panel(PANEL</STRONG> <STRONG>*pan,</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*window)</STRONG>
-       <STRONG>int</STRONG> <STRONG>move_panel(PANEL</STRONG> <STRONG>*pan,</STRONG> <STRONG>int</STRONG> <STRONG>starty,</STRONG> <STRONG>int</STRONG> <STRONG>startx)</STRONG>
-       <STRONG>int</STRONG> <STRONG>panel_hidden(const</STRONG> <STRONG>PANEL</STRONG> <STRONG>*pan)</STRONG>
-       <STRONG>PANEL</STRONG> <STRONG>*panel_above(const</STRONG> <STRONG>PANEL</STRONG> <STRONG>*pan)</STRONG>
-       <STRONG>PANEL</STRONG> <STRONG>*panel_below(const</STRONG> <STRONG>PANEL</STRONG> <STRONG>*pan)</STRONG>
-       <STRONG>int</STRONG> <STRONG>set_panel_userptr(PANEL</STRONG> <STRONG>*pan,</STRONG> <STRONG>const</STRONG> <STRONG>void</STRONG> <STRONG>*ptr)</STRONG>
-       <STRONG>const</STRONG> <STRONG>void</STRONG> <STRONG>*panel_userptr(const</STRONG> <STRONG>PANEL</STRONG> <STRONG>*pan)</STRONG>
-       <STRONG>int</STRONG> <STRONG>del_panel(PANEL</STRONG> <STRONG>*pan)</STRONG>
+       <STRONG>int</STRONG> <STRONG>bottom_panel(PANEL</STRONG> <STRONG>*</STRONG><EM>pan</EM><STRONG>);</STRONG>
+       <STRONG>int</STRONG> <STRONG>top_panel(PANEL</STRONG> <STRONG>*</STRONG><EM>pan</EM><STRONG>);</STRONG>
+       <STRONG>int</STRONG> <STRONG>show_panel(PANEL</STRONG> <STRONG>*</STRONG><EM>pan</EM><STRONG>);</STRONG>
+       <STRONG>void</STRONG> <STRONG>update_panels(void);</STRONG>
+       <STRONG>int</STRONG> <STRONG>hide_panel(PANEL</STRONG> <STRONG>*</STRONG><EM>pan</EM><STRONG>);</STRONG>
+
+       <STRONG>WINDOW</STRONG> <STRONG>*panel_window(const</STRONG> <STRONG>PANEL</STRONG> <STRONG>*</STRONG><EM>pan</EM><STRONG>);</STRONG>
+       <STRONG>int</STRONG> <STRONG>replace_panel(PANEL</STRONG> <STRONG>*</STRONG><EM>pan</EM><STRONG>,</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*</STRONG><EM>window</EM><STRONG>);</STRONG>
+       <STRONG>int</STRONG> <STRONG>move_panel(PANEL</STRONG> <STRONG>*</STRONG><EM>pan</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>starty</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>startx</EM><STRONG>);</STRONG>
+       <STRONG>int</STRONG> <STRONG>panel_hidden(const</STRONG> <STRONG>PANEL</STRONG> <STRONG>*</STRONG><EM>pan</EM><STRONG>);</STRONG>
+
+       <STRONG>PANEL</STRONG> <STRONG>*panel_above(const</STRONG> <STRONG>PANEL</STRONG> <STRONG>*</STRONG><EM>pan</EM><STRONG>);</STRONG>
+       <STRONG>PANEL</STRONG> <STRONG>*panel_below(const</STRONG> <STRONG>PANEL</STRONG> <STRONG>*</STRONG><EM>pan</EM><STRONG>);</STRONG>
+
+       <STRONG>int</STRONG> <STRONG>set_panel_userptr(PANEL</STRONG> <STRONG>*</STRONG><EM>pan</EM><STRONG>,</STRONG> <STRONG>const</STRONG> <STRONG>void</STRONG> <STRONG>*</STRONG><EM>ptr</EM><STRONG>);</STRONG>
+       <STRONG>const</STRONG> <STRONG>void</STRONG> <STRONG>*panel_userptr(const</STRONG> <STRONG>PANEL</STRONG> <STRONG>*</STRONG><EM>pan</EM><STRONG>);</STRONG>
+
+       <STRONG>int</STRONG> <STRONG>del_panel(PANEL</STRONG> <STRONG>*</STRONG><EM>pan</EM><STRONG>);</STRONG>
+
+       <EM>/*</EM> <EM>ncurses</EM> <EM>extensions</EM> <EM>*/</EM>
+       <STRONG>PANEL</STRONG> <STRONG>*ground_panel(SCREEN</STRONG> <STRONG>*</STRONG><EM>sp</EM><STRONG>);</STRONG>
+       <STRONG>PANEL</STRONG> <STRONG>*ceiling_panel(SCREEN</STRONG> <STRONG>*</STRONG><EM>sp</EM><STRONG>);</STRONG>
 
 
-</PRE>
-<H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
-       Panels  are  <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>  windows with the added feature of
-       depth.  Panel functions allow the use of  stacked  windows
-       and  ensure  the  proper  portions  of each window and the
-       curses <STRONG>stdscr</STRONG> window are hidden or displayed  when  panels
-       are  added,  moved,  modified or removed.  The set of cur-
-       rently visible panels is the stack of panels.  The  <STRONG>stdscr</STRONG>
-       window  is  beneath all panels, and is not considered part
-       of the stack.
+</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
+       Panels  are <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG> windows with the added property of depth.  Panel
+       functions allow the use of stacked windows and ensure that  the  proper
+       portions  of  each  window  and  the <EM>curses</EM> <STRONG>stdscr</STRONG> window are hidden or
+       displayed when panels are added, moved, modified, or removed.  The  set
+       of  currently visible panels is the stack of panels.  The <STRONG>stdscr</STRONG> window
+       is beneath all panels, and is not considered part of the stack.
 
-       A window is associated with every panel.  The  panel  rou-
-       tines  enable  you to create, move, hide, and show panels,
-       as well as position a panel at any desired location in the
-       stack.
+       A window is associated with each panel.  The panel routines enable  you
+       to  create,  move,  hide, and show panels.  You can relocate a panel to
+       any desired position in the stack.
 
-       Panel routines are a functional layer added to <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>,
-       make only high-level curses calls, and work anywhere  ter-
-       minfo curses does.
+       Panel routines are a functional layer added to <EM>curses</EM>, make only  high-
+       level <EM>curses</EM> calls, and work anywhere <EM>curses</EM> does.
 
 
-</PRE>
-<H2><a name="h2-FUNCTIONS">FUNCTIONS</a></H2><PRE>
-       <STRONG>new_panel(win)</STRONG>
-              allocates   a   <STRONG>PANEL</STRONG> structure, associates it with
-              <STRONG>win</STRONG>, places the panel  on  the  top  of  the  stack
-              (causes   it  to   be   displayed  above  any other
-              panel) and returns a pointer to the new panel.
+</PRE><H2><a name="h2-FUNCTIONS">FUNCTIONS</a></H2><PRE>
 
-       <STRONG>update_panels()</STRONG>
-              refreshes the virtual screen to reflect  the  rela-
-              tions between the panels in the stack, but does not
-              call doupdate() to  refresh  the  physical  screen.
-              Use this function and not <STRONG>wrefresh</STRONG> or <STRONG>wnoutrefresh</STRONG>.
-              <STRONG>update_panels</STRONG> may be called more than once before a
-              call  to doupdate(), but doupdate() is the function
-              responsible for updating the physical screen.
-
-       <STRONG>del_panel(pan)</STRONG>
-              removes the given panel from the  stack and deallo-
-              cates  the  <STRONG>PANEL</STRONG> structure (but not its associated
-              window).
-
-       <STRONG>hide_panel(pan)</STRONG>
-              removes the given panel from the  panel  stack  and
-              thus hides it from view. The <STRONG>PANEL</STRONG> structure is not
-              lost, merely removed from the stack.
-
-       <STRONG>panel_hidden(pan)</STRONG>
-              returns <STRONG>TRUE</STRONG> if the panel is in  the  panel  stack,
-              <STRONG>FALSE</STRONG>  if  it  is  not.   If  the  panel  is a null
-              pointer, return ERR.
-
-       <STRONG>show_panel(pan)</STRONG>
-              makes a hidden panel visible by placing it  on  top
-              of the panels in the panel stack. See COMPATIBILITY
-              below.
-
-       <STRONG>top_panel(pan)</STRONG>
-              puts the given visible panel on top of  all  panels
-              in the stack.  See COMPATIBILITY below.
-
-       <STRONG>bottom_panel(pan)</STRONG>
-              puts panel at the bottom of all panels.
-
-       <STRONG>move_panel(pan,starty,startx)</STRONG>
-              moves the given panel window so that its upper-left
-              corner is at <STRONG>starty</STRONG>, <STRONG>startx</STRONG>.  It  does  not  change
-              the position of the panel in the stack.  Be sure to
-              use this function, not <STRONG>mvwin()</STRONG>,  to  move  a  panel
-              window.
-
-       <STRONG>replace_panel(pan,window)</STRONG>
-              replaces  the  current  window of panel with <STRONG>window</STRONG>
-              (useful, for example if you want to resize a panel;
-              if you're using <STRONG>ncurses</STRONG>, you can call <STRONG>replace_panel</STRONG>
-              on the output of <STRONG><A HREF="wresize.3x.html">wresize(3x)</A></STRONG>).  It does not  change
-              the position of the panel in the stack.
-
-       <STRONG>panel_above(pan)</STRONG>
-              returns  a  pointer to the panel above pan.  If the
-              panel argument is <STRONG>(PANEL</STRONG> <STRONG>*)0</STRONG>, it returns a  pointer
-              to the bottom panel in the stack.
-
-       <STRONG>panel_below(pan)</STRONG>
-              returns  a pointer to the panel just below pan.  If
-              the panel argument is  <STRONG>(PANEL</STRONG>  <STRONG>*)0</STRONG>,  it  returns  a
-              pointer to the top panel in the stack.
-
-       <STRONG>set_panel_userptr(pan,ptr)</STRONG>
-              sets the panel's user pointer.
-
-       <STRONG>panel_userptr(pan)</STRONG>
-              returns the user pointer for a given panel.
-
-       <STRONG>panel_window(pan)</STRONG>
-              returns a pointer to the window of the given panel.
+</PRE><H3><a name="h3-bottom_panel">bottom_panel</a></H3><PRE>
+       <STRONG>bottom_panel(</STRONG><EM>pan</EM><STRONG>)</STRONG> puts panel <EM>pan</EM> at the bottom of all panels.
 
 
-</PRE>
-<H2><a name="h2-DIAGNOSTICS">DIAGNOSTICS</a></H2><PRE>
-       Each  routine  that  returns  a pointer returns <STRONG>NULL</STRONG> if an
-       error occurs. Each  routine  that  returns  an  int  value
-       returns <STRONG>OK</STRONG> if it executes successfully and <STRONG>ERR</STRONG> if not.
+</PRE><H3><a name="h3-ceiling_panel">ceiling_panel</a></H3><PRE>
+       <STRONG>ceiling_panel(</STRONG><EM>sp</EM><STRONG>)</STRONG> acts like <STRONG>panel_below(NULL)</STRONG> for the given <EM>SCREEN</EM> <EM>sp</EM>.
 
 
-</PRE>
-<H2><a name="h2-COMPATIBILITY">COMPATIBILITY</a></H2><PRE>
-       Reasonable  care  has been taken to  ensure  compatibility
-       with  the  native  panel  facility  introduced  in  SVr3.2
-       (inspection of the SVr4 manual pages suggests the program-
-       ming interface is unchanged).  The <STRONG>PANEL</STRONG>  data  structures
-       are  merely   similar. The  programmer is cautioned not to
-       directly use <STRONG>PANEL</STRONG> fields.
-
-       The functions <STRONG>show_panel()</STRONG> and <STRONG>top_panel()</STRONG>  are  identical
-       in  this  implementation,  and work equally well with dis-
-       played or hidden panels.  In the native System V implemen-
-       tation, <STRONG>show_panel()</STRONG> is intended for making a hidden panel
-       visible (at the top  of  the  stack)  and  <STRONG>top_panel()</STRONG>  is
-       intended  for  making an already-visible panel move to the
-       top of the stack. You are cautioned  to  use  the  correct
-       function   to   ensure  compatibility  with  native  panel
-       libraries.
+</PRE><H3><a name="h3-del_panel">del_panel</a></H3><PRE>
+       <STRONG>del_panel(</STRONG><EM>pan</EM><STRONG>)</STRONG>   removes  the  given  panel  <EM>pan</EM>  from  the  stack  and
+       deallocates the <EM>PANEL</EM> structure (but not its associated window).
 
 
-</PRE>
-<H2><a name="h2-NOTE">NOTE</a></H2><PRE>
-       In your library list, libpanel.a should  be  before  libn-
-       curses.a;  that  is,  you want to say `-lpanel -lncurses',
-       not the other way around (which would usually give a link-
-       error).
+</PRE><H3><a name="h3-ground_panel">ground_panel</a></H3><PRE>
+       <STRONG>ground_panel(</STRONG><EM>sp</EM><STRONG>)</STRONG> acts like <STRONG>panel_above(NULL)</STRONG> for the given <EM>SCREEN</EM> <EM>sp</EM>.
 
 
-</PRE>
-<H2><a name="h2-FILES">FILES</a></H2><PRE>
-       panel.h interface for the panels library
-
-       libpanel.a the panels library itself
+</PRE><H3><a name="h3-hide_panel">hide_panel</a></H3><PRE>
+       <STRONG>hide_panel(</STRONG><EM>pan</EM><STRONG>)</STRONG> removes the given panel <EM>pan</EM> from the  panel  stack  and
+       thus  hides  it  from  view.   The  <EM>PANEL</EM> structure is not lost, merely
+       removed from the stack.
 
 
-</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_variables.3x.html">curs_variables(3x)</A></STRONG>,
-
-       This describes <STRONG>ncurses</STRONG> version 6.0 (patch 20150808).
+</PRE><H3><a name="h3-move_panel">move_panel</a></H3><PRE>
+       <STRONG>move_panel(</STRONG><EM>pan</EM><STRONG>,</STRONG> <EM>starty</EM><STRONG>,</STRONG> <EM>startx</EM><STRONG>)</STRONG> moves the given panel <EM>pan</EM>'s  window  so
+       that  its  upper-left  corner is at <EM>starty</EM>, <EM>startx</EM>.  It does not change
+       the position of the panel in the stack.  Be sure to use this  function,
+       not <STRONG><A HREF="curs_window.3x.html">mvwin(3x)</A></STRONG>, to move a panel window.
 
 
-</PRE>
-<H2><a name="h2-AUTHOR">AUTHOR</a></H2><PRE>
-       Originally   written   by   Warren  Tucker  &lt;wht@n4hgf.mt-
-       park.ga.us&gt;, primarily to assist  in  porting  u386mon  to
-       systems  without  a native panels library.  Repackaged for
-       ncurses by Zeyd ben-Halim.
+</PRE><H3><a name="h3-new_panel">new_panel</a></H3><PRE>
+       <STRONG>new_panel(</STRONG><EM>win</EM><STRONG>)</STRONG>  allocates  a  <EM>PANEL</EM>  structure, associates it with <EM>win</EM>,
+       places the panel on the top of the stack (causes  it  to  be  displayed
+       above any other panel) and returns a pointer to the new panel.
+
+
+</PRE><H3><a name="h3-panel_above">panel_above</a></H3><PRE>
+       <STRONG>panel_above(</STRONG><EM>pan</EM><STRONG>)</STRONG>  returns  a  pointer  to  the panel above <EM>pan</EM>.  If the
+       panel argument is "<STRONG>(PANEL</STRONG> <STRONG>*)0</STRONG>", it returns  a  pointer  to  the  bottom
+       panel in the stack.
+
+
+</PRE><H3><a name="h3-panel_below">panel_below</a></H3><PRE>
+       <STRONG>panel_below(</STRONG><EM>pan</EM><STRONG>)</STRONG> returns a pointer to the panel just below <EM>pan</EM>.  If the
+       panel argument is "<STRONG>(PANEL</STRONG> <STRONG>*)0</STRONG>", it returns a pointer to the  top  panel
+       in the stack.
+
+
+</PRE><H3><a name="h3-panel_hidden">panel_hidden</a></H3><PRE>
+       <STRONG>panel_hidden(</STRONG><EM>pan</EM><STRONG>)</STRONG> returns <STRONG>FALSE</STRONG> if the panel <EM>pan</EM> is in the panel stack,
+       and <STRONG>TRUE</STRONG> if it is not.  If the panel is a null pointer, it returns <STRONG>ERR</STRONG>.
+
+
+</PRE><H3><a name="h3-panel_userptr">panel_userptr</a></H3><PRE>
+       <STRONG>panel_userptr(</STRONG><EM>pan</EM><STRONG>)</STRONG> returns the user pointer for a given panel <EM>pan</EM>.
+
+
+</PRE><H3><a name="h3-panel_window">panel_window</a></H3><PRE>
+       <STRONG>panel_window(</STRONG><EM>pan</EM><STRONG>)</STRONG> returns a pointer to the window of  the  given  panel
+       <EM>pan</EM>.
+
+
+</PRE><H3><a name="h3-replace_panel">replace_panel</a></H3><PRE>
+       <STRONG>replace_panel(</STRONG><EM>pan</EM><STRONG>,</STRONG>  <EM>window</EM><STRONG>)</STRONG>  replaces  the  current window of panel <EM>pan</EM>
+       with <EM>window</EM> This is useful if, for example, you want to resize a panel.
+       In <EM>ncurses</EM>, you can call <STRONG>replace_panel</STRONG> to resize a panel using a window
+       resized with <STRONG><A HREF="wresize.3x.html">wresize(3x)</A></STRONG>.  It does not change the position of the panel
+       in the stack.
+
+
+</PRE><H3><a name="h3-set_panel_userptr">set_panel_userptr</a></H3><PRE>
+       <STRONG>set_panel_userptr(</STRONG><EM>pan</EM><STRONG>,</STRONG> <EM>ptr</EM><STRONG>)</STRONG> sets the panel's user pointer.
+
+
+</PRE><H3><a name="h3-show_panel">show_panel</a></H3><PRE>
+       <STRONG>show_panel(</STRONG><EM>pan</EM><STRONG>)</STRONG>  makes  a  hidden panel visible by placing it on top of
+       the panels in the panel stack.  See "PORTABILITY" below.
+
+
+</PRE><H3><a name="h3-top_panel">top_panel</a></H3><PRE>
+       <STRONG>top_panel(</STRONG><EM>pan</EM><STRONG>)</STRONG> puts the given visible panel <EM>pan</EM> on top of all panels in
+       the stack.  See "PORTABILITY" below.
+
+
+</PRE><H3><a name="h3-update_panels">update_panels</a></H3><PRE>
+       <STRONG>update_panels()</STRONG>  refreshes  the virtual screen to reflect the relations
+       between the panels in the stack, but  does  not  call  <STRONG><A HREF="curs_refresh.3x.html">doupdate(3x)</A></STRONG>  to
+       refresh the physical screen.  Use this function and not <STRONG><A HREF="curs_refresh.3x.html">wrefresh(3x)</A></STRONG> or
+       <STRONG><A HREF="curs_refresh.3x.html">wnoutrefresh(3x)</A></STRONG>.
+
+       <STRONG>update_panels</STRONG> may be called more than once before a call  to  <STRONG>doupdate</STRONG>,
+       but  <STRONG>doupdate</STRONG>  is  the  function  responsible for updating the physical
+       screen.
+
+
+</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
+       Each routine that returns a pointer returns <STRONG>NULL</STRONG> if  an  error  occurs.
+       Each  routine  that  returns  an  int  value  returns <STRONG>OK</STRONG> if it executes
+       successfully and <STRONG>ERR</STRONG> if not.
+
+       Except as noted, the <EM>pan</EM> and <EM>window</EM> parameters must  be  non-null.   If
+       either is null, an error is returned.
+
+       The  <STRONG>move_panel</STRONG>  function uses <STRONG><A HREF="curs_window.3x.html">mvwin(3x)</A></STRONG>, and returns an error if <STRONG>mvwin</STRONG>
+       returns an error.
+
+
+</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
+       The header file <EM>panel.h</EM> itself includes the header file <EM>curses.h</EM>.
+
+
+</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
+       Reasonable care has been taken to ensure compatibility with the  native
+       panel  facility  introduced  in System V; inspection of the SVr4 manual
+       pages suggests the programming interface never changed.  The <EM>PANEL</EM> data
+       structures  are  merely  similar.   The  programmer is cautioned not to
+       directly use <EM>PANEL</EM> fields.
+
+       The  functions  <STRONG>show_panel</STRONG>  and  <STRONG>top_panel</STRONG>  are   identical   in   this
+       implementation,  and work equally well with displayed or hidden panels.
+       In the System V implementation, <STRONG>show_panel</STRONG> is  intended  for  making  a
+       hidden  panel  visible  (at  the  top  of  the  stack) and <STRONG>top_panel</STRONG> is
+       intended for making an already-visible panel move to  the  top  of  the
+       stack.   You  are  cautioned  to  use  the  correct  function to ensure
+       compatibility with System V panel libraries.
+
+
+</PRE><H2><a name="h2-HISTORY">HISTORY</a></H2><PRE>
+       A panel facility was documented in SVr4.2's  <EM>Character</EM>  <EM>User</EM>  <EM>Interface</EM>
+       <EM>Programming</EM> document.
+
+       It is not part of X/Open Curses.
+
+       A few implementations exist:
+
+       <STRONG>o</STRONG>   Systems  based  on  SVr4 source code, such as Solaris, provide this
+           library.
+
+       <STRONG>o</STRONG>   <EM>ncurses</EM> (since version 0.6 in 1993) and <EM>PDCurses</EM> (since version 2.2
+           in  1995) provide a panel library whose common ancestor is a public
+           domain implementation by Warren Tucker published  in  <EM>u386mon</EM>  2.20
+           (1990).
+
+           According  to Tucker, the System V panel library was first released
+           in SVr3.2 (1988), and his implementation  helped  with  a  port  to
+           SVr3.1 (1987).
+
+           Several  developers have improved each of these; they are no longer
+           the same as Tucker's implementation.
+
+       <STRONG>o</STRONG>   NetBSD 8 (2018) has a panel library  begun  by  Valery  Ushakov  in
+           2015, based on the System V documentation.
+
+
+</PRE><H2><a name="h2-AUTHORS">AUTHORS</a></H2><PRE>
+       Warren   Tucker   &lt;wht@n4hgf.mt-park.ga.us&gt;   originally   wrote   this
+       implementation, primarily to  assist  in  porting  <EM>u386mon</EM>  to  systems
+       without a native panel library.
+
+       Zeyd ben-Halim repackaged it for <EM>ncurses</EM>.
+
+       Juergen Pfeifer and Thomas E. Dickey revised and improved the library.
+
+
+</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_variables.3x.html">curs_variables(3x)</A></STRONG>
 
 
 
-                                                              <STRONG><A HREF="panel.3x.html">panel(3x)</A></STRONG>
+ncurses 6.5                       2024-03-16                         <STRONG><A HREF="panel.3x.html">panel(3x)</A></STRONG>
 </PRE>
 <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></li>
-<li><a href="#h2-FUNCTIONS">FUNCTIONS</a></li>
-<li><a href="#h2-DIAGNOSTICS">DIAGNOSTICS</a></li>
-<li><a href="#h2-COMPATIBILITY">COMPATIBILITY</a></li>
-<li><a href="#h2-NOTE">NOTE</a></li>
-<li><a href="#h2-FILES">FILES</a></li>
+<li><a href="#h2-FUNCTIONS">FUNCTIONS</a>
+<ul>
+<li><a href="#h3-bottom_panel">bottom_panel</a></li>
+<li><a href="#h3-ceiling_panel">ceiling_panel</a></li>
+<li><a href="#h3-del_panel">del_panel</a></li>
+<li><a href="#h3-ground_panel">ground_panel</a></li>
+<li><a href="#h3-hide_panel">hide_panel</a></li>
+<li><a href="#h3-move_panel">move_panel</a></li>
+<li><a href="#h3-new_panel">new_panel</a></li>
+<li><a href="#h3-panel_above">panel_above</a></li>
+<li><a href="#h3-panel_below">panel_below</a></li>
+<li><a href="#h3-panel_hidden">panel_hidden</a></li>
+<li><a href="#h3-panel_userptr">panel_userptr</a></li>
+<li><a href="#h3-panel_window">panel_window</a></li>
+<li><a href="#h3-replace_panel">replace_panel</a></li>
+<li><a href="#h3-set_panel_userptr">set_panel_userptr</a></li>
+<li><a href="#h3-show_panel">show_panel</a></li>
+<li><a href="#h3-top_panel">top_panel</a></li>
+<li><a href="#h3-update_panels">update_panels</a></li>
+</ul>
+</li>
+<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
+<li><a href="#h2-NOTES">NOTES</a></li>
+<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
+<li><a href="#h2-HISTORY">HISTORY</a></li>
+<li><a href="#h2-AUTHORS">AUTHORS</a></li>
 <li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
-<li><a href="#h2-AUTHOR">AUTHOR</a></li>
 </ul>
 </div>
 </BODY>