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-  * @Id: panel.3x,v 1.24 2017/11/25 20:31:13 tom Exp @
+  * @Id: panel.3x,v 1.39 2020/02/15 21:06:40 tom Exp @
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 <TITLE>panel 3x</TITLE>
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        <STRONG>cc</STRONG> <STRONG>[flags]</STRONG> <STRONG>sourcefiles</STRONG> <STRONG>-lpanel</STRONG> <STRONG>-lncurses</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>PANEL</STRONG> <STRONG>*new_panel(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>);</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>
+
+       /* ncurses-extensions */
+       <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  por-
-       tions  of  each  window and the curses <STRONG>stdscr</STRONG> window are hidden or dis-
-       played 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.
+       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  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 routines enable  you
+       A window is associated with every panel.  The panel routines enable you
        to  create, move, hide, and show panels, as well as position a panel at
        any desired location in the stack.
 
 
 
 </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.
-
-       <STRONG>update_panels</STRONG>
-              refreshes  the  virtual  screen to reflect the relations between
-              the panels in the stack, but does not call <STRONG>doupdate</STRONG>  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 <STRONG>doupdate</STRONG>, but <STRONG>doupdate</STRONG> is the function responsible for
-              updating the physical screen.
-
-       <STRONG>del_panel(pan)</STRONG>
-              removes the given panel from  the   stack  and  deallocates  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 <STRONG>ERR</STRONG>.
-
-       <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><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 <STRONG>SCREEN</STRONG> <EM>sp</EM>.
+
+
+</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 <STRONG>PANEL</STRONG> structure (but not its associated window).
+
+
+</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 <STRONG>SCREEN</STRONG> <EM>sp</EM>.
+
+
+</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  <STRONG>PANEL</STRONG> structure is not lost, merely
+       removed from the stack.
+
+
+</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><H3><a name="h3-new_panel">new_panel</a></H3><PRE>
+       <STRONG>new_panel(</STRONG><EM>win</EM><STRONG>)</STRONG>  allocates   a  <STRONG>PANEL</STRONG> 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>TRUE</STRONG> if the panel <EM>pan</EM> is in the panel stack,
+       <STRONG>FALSE</STRONG> if it is not.  If the panel is a null pointer, return <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, for example if you want to resize a  panel.   In
+       <STRONG>ncurses</STRONG>,  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 <STRONG>COMPATIBILITY</STRONG> 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 <STRONG>COMPATIBILITY</STRONG> below.
+
+
+</PRE><H3><a name="h3-update_panels">update_panels</a></H3><PRE>
+       <STRONG>update_panels()</STRONG>  refreshes  the <EM>virtual</EM> <EM>screen</EM> 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 <EM>physical</EM> <EM>screen</EM>.  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 <EM>physical</EM>
+       <EM>screen</EM>.
 
 
 </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 suc-
-       cessfully and <STRONG>ERR</STRONG> if not.
+       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
+       those are null, an error is returned.
+
+       The  <STRONG>move_panel</STRONG>  function  uses  <STRONG><A HREF="curs_window.3x.html">mvwin(3x)</A></STRONG>, and will return an error if
+       <STRONG>mvwin</STRONG> returns an error.
 
 
 </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 System V (inspection of the SVr4
        manual pages suggests the programming  interface  is  unchanged).   The
-       <STRONG>PANEL</STRONG> data structures are merely  similar. The  programmer is cautioned
-       not to directly use <STRONG>PANEL</STRONG> fields.
+       <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  implemen-
-       tation,  and work equally well with displayed or hidden panels.  In the
-       native 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 compati-
-       bility with native panel libraries.
+       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 native 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 native panel libraries.
 
 
 </PRE><H2><a name="h2-NOTE">NOTE</a></H2><PRE>
 
        It is not part of X/Open Curses.
 
-       Aside  from  ncurses,  only  systems  based  on SVr4 source code, e.g.,
-       Solaris provide this library.
+       A few implementations exist:
+
+       <STRONG>o</STRONG>   Systems  based  on  SVr4  source  code, e.g., Solaris, provide this
+           library.
+
+       <STRONG>o</STRONG>   <STRONG>ncurses</STRONG> (since version 0.6 in 1993) and <STRONG>PDCurses</STRONG> (since version 2.2
+           in 1995) provide a panel library whose common ancestor was a public
+           domain implementation by Warren Tucker published  in  <EM>u386mon</EM>  2.20
+           (1990).
+
+           According  to  Tucker, the SystemV 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.  This is based on the AT&amp;T documentation.
 
 
 </PRE><H2><a name="h2-FILES">FILES</a></H2><PRE>
 </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 6.1 (patch 20180331).
+       This describes <STRONG>ncurses</STRONG> version 6.2 (patch 20211009).
 
 
 </PRE><H2><a name="h2-AUTHOR">AUTHOR</a></H2><PRE>
-       Originally written by Warren Tucker &lt;wht@n4hgf.mt-park.ga.us&gt;,  primar-
-       ily  to  assist  in  porting u386mon to systems without a native panels
-       library.  Repackaged for ncurses by Zeyd ben-Halim.
+       Originally   written   by   Warren   Tucker  &lt;wht@n4hgf.mt-park.ga.us&gt;,
+       primarily to assist in porting <EM>u386mon</EM>  to  systems  without  a  native
+       panels library.
+
+       Repackaged for ncurses by Zeyd ben-Halim.
+
+       Juergen Pfeifer and Thomas E. Dickey revised/improved the library.
 
 
 
 <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-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-DIAGNOSTICS">DIAGNOSTICS</a></li>
 <li><a href="#h2-COMPATIBILITY">COMPATIBILITY</a></li>
 <li><a href="#h2-NOTE">NOTE</a></li>