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- * Copyright 2018-2019,2020 Thomas E. Dickey *
+ * Copyright 2018-2021,2022 Thomas E. Dickey *
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- * @Id: panel.3x,v 1.39 2020/02/15 21:06:40 tom Exp @
+ * @Id: panel.3x,v 1.42 2022/02/12 20:03:40 tom Exp @
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-<H1 class="no-header">panel 3X</H1>
+<H1 class="no-header">panel 3x</H1>
<PRE>
-<B><A HREF="panel.3X.html">panel(3X)</A></B> <B><A HREF="panel.3X.html">panel(3X)</A></B>
+<STRONG><A HREF="panel.3x.html">panel(3x)</A></STRONG> <STRONG><A HREF="panel.3x.html">panel(3x)</A></STRONG>
</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
- <B>#include</B> <B><panel.h></B>
+ <STRONG>#include</STRONG> <STRONG><panel.h></STRONG>
- <B>cc</B> <B>[flags]</B> <B>sourcefiles</B> <B>-lpanel</B> <B>-lncurses</B>
+ <STRONG>cc</STRONG> <STRONG>[flags]</STRONG> <STRONG>sourcefiles</STRONG> <STRONG>-lpanel</STRONG> <STRONG>-lncurses</STRONG>
- <B>PANEL</B> <B>*new_panel(WINDOW</B> <B>*</B><I>win</I><B>);</B>
+ <STRONG>PANEL</STRONG> <STRONG>*new_panel(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>);</STRONG>
- <B>int</B> <B>bottom_panel(PANEL</B> <B>*</B><I>pan</I><B>);</B>
- <B>int</B> <B>top_panel(PANEL</B> <B>*</B><I>pan</I><B>);</B>
- <B>int</B> <B>show_panel(PANEL</B> <B>*</B><I>pan</I><B>);</B>
- <B>void</B> <B>update_panels(void);</B>
- <B>int</B> <B>hide_panel(PANEL</B> <B>*</B><I>pan</I><B>);</B>
+ <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>
- <B>WINDOW</B> <B>*panel_window(const</B> <B>PANEL</B> <B>*</B><I>pan</I><B>);</B>
- <B>int</B> <B>replace_panel(PANEL</B> <B>*</B><I>pan</I><B>,</B> <B>WINDOW</B> <B>*</B><I>window</I><B>);</B>
- <B>int</B> <B>move_panel(PANEL</B> <B>*</B><I>pan</I><B>,</B> <B>int</B> <I>starty</I><B>,</B> <B>int</B> <I>startx</I><B>);</B>
- <B>int</B> <B>panel_hidden(const</B> <B>PANEL</B> <B>*</B><I>pan</I><B>);</B>
+ <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>
- <B>PANEL</B> <B>*panel_above(const</B> <B>PANEL</B> <B>*</B><I>pan</I><B>);</B>
- <B>PANEL</B> <B>*panel_below(const</B> <B>PANEL</B> <B>*</B><I>pan</I><B>);</B>
+ <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>
- <B>int</B> <B>set_panel_userptr(PANEL</B> <B>*</B><I>pan</I><B>,</B> <B>const</B> <B>void</B> <B>*</B><I>ptr</I><B>);</B>
- <B>const</B> <B>void</B> <B>*panel_userptr(const</B> <B>PANEL</B> <B>*</B><I>pan</I><B>);</B>
+ <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>
- <B>int</B> <B>del_panel(PANEL</B> <B>*</B><I>pan</I><B>);</B>
+ <STRONG>int</STRONG> <STRONG>del_panel(PANEL</STRONG> <STRONG>*</STRONG><EM>pan</EM><STRONG>);</STRONG>
/* ncurses-extensions */
- <B>PANEL</B> <B>*ground_panel(SCREEN</B> <B>*</B><I>sp</I><B>);</B>
- <B>PANEL</B> <B>*ceiling_panel(SCREEN</B> <B>*</B><I>sp</I><B>);</B>
+ <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 <B><A HREF="curses.3X.html">curses(3X)</A></B> windows with the added feature of depth. Panel
+ 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 <B>stdscr</B> window are hidden or
+ 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 <B>stdscr</B> window
+ 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
to create, move, hide, and show panels, as well as position a panel at
any desired location in the stack.
- Panel routines are a functional layer added to <B><A HREF="curses.3X.html">curses(3X)</A></B>, make only
+ 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 terminfo curses does.
</PRE><H2><a name="h2-FUNCTIONS">FUNCTIONS</a></H2><PRE>
</PRE><H3><a name="h3-bottom_panel">bottom_panel</a></H3><PRE>
- <B>bottom_panel(</B><I>pan</I><B>)</B> puts panel <I>pan</I> at the bottom of all panels.
+ <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>
- <B>ceiling_panel(</B><I>sp</I><B>)</B> acts like <B>panel_below(NULL)</B>, for the given <B>SCREEN</B> <I>sp</I>.
+ <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>
- <B>del_panel(</B><I>pan</I><B>)</B> removes the given panel <I>pan</I> from the stack and
- deallocates the <B>PANEL</B> structure (but not its associated window).
+ <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>
- <B>ground_panel(</B><I>sp</I><B>)</B> acts like <B>panel_above(NULL)</B>, for the given <B>SCREEN</B> <I>sp</I>.
+ <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>
- <B>hide_panel(</B><I>pan</I><B>)</B> removes the given panel <I>pan</I> from the panel stack and
- thus hides it from view. The <B>PANEL</B> structure is not lost, merely
+ <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>
- <B>move_panel(</B><I>pan</I><B>,</B><I>starty</I><B>,</B><I>startx</I><B>)</B> moves the given panel <I>pan</I>'s window so
- that its upper-left corner is at <I>starty</I>, <I>startx</I>. It does not change
+ <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 <B><A HREF="curs_window.3X.html">mvwin(3X)</A></B>, to move a panel window.
+ 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>
- <B>new_panel(</B><I>win</I><B>)</B> allocates a <B>PANEL</B> structure, associates it with <I>win</I>,
+ <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>
- <B>panel_above(</B><I>pan</I><B>)</B> returns a pointer to the panel above <I>pan</I>. If the
- panel argument is <B>(PANEL</B> <B>*)0</B>, it returns a pointer to the bottom panel
+ <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>
- <B>panel_below(</B><I>pan</I><B>)</B> returns a pointer to the panel just below <I>pan</I>. If the
- panel argument is <B>(PANEL</B> <B>*)0</B>, it returns a pointer to the top panel in
+ <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>
- <B>panel_hidden(</B><I>pan</I><B>)</B> returns <B>TRUE</B> if the panel <I>pan</I> is in the panel stack,
- <B>FALSE</B> if it is not. If the panel is a null pointer, return <B>ERR</B>.
+ <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>
- <B>panel_userptr(</B><I>pan</I><B>)</B> returns the user pointer for a given panel <I>pan</I>.
+ <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>
- <B>panel_window(</B><I>pan</I><B>)</B> returns a pointer to the window of the given panel
- <I>pan</I>.
+ <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>
- <B>replace_panel(</B><I>pan</I><B>,</B><I>window</I><B>)</B> replaces the current window of panel <I>pan</I> with
- <I>window</I> This is useful, for example if you want to resize a panel. In
- <B>ncurses</B>, you can call <B>replace_panel</B> to resize a panel using a window
- resized with <B><A HREF="wresize.3X.html">wresize(3X)</A></B>. It does not change the position of the panel
+ <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>
- <B>set_panel_userptr(</B><I>pan</I><B>,</B><I>ptr</I><B>)</B> sets the panel's user pointer.
+ <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>
- <B>show_panel(</B><I>pan</I><B>)</B> makes a hidden panel visible by placing it on top of
- the panels in the panel stack. See <B>COMPATIBILITY</B> below.
+ <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>
- <B>top_panel(</B><I>pan</I><B>)</B> puts the given visible panel <I>pan</I> on top of all panels in
- the stack. See <B>COMPATIBILITY</B> below.
+ <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>
- <B>update_panels()</B> refreshes the <I>virtual</I> <I>screen</I> to reflect the relations
- between the panels in the stack, but does not call <B><A HREF="curs_refresh.3X.html">doupdate(3X)</A></B> to
- refresh the <I>physical</I> <I>screen</I>. Use this function and not <B><A HREF="curs_refresh.3X.html">wrefresh(3X)</A></B> or
- <B><A HREF="curs_refresh.3X.html">wnoutrefresh(3X)</A></B>.
+ <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>.
- <B>update_panels</B> may be called more than once before a call to <B>doupdate</B>,
- but <B>doupdate</B> is the function responsible for updating the <I>physical</I>
- <I>screen</I>.
+ <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 <B>NULL</B> if an error occurs.
- Each routine that returns an int value returns <B>OK</B> if it executes
- successfully and <B>ERR</B> if not.
+ 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 <I>pan</I> and <I>window</I> parameters must be non-null. If
+ 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 <B>move_panel</B> function uses <B><A HREF="curs_window.3X.html">mvwin(3X)</A></B>, and will return an error if
- <B>mvwin</B> returns an error.
+ 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
- <B>PANEL</B> data structures are merely similar. The programmer is
- cautioned not to directly use <B>PANEL</B> fields.
+ <STRONG>PANEL</STRONG> data structures are merely similar. The programmer is
+ cautioned not to directly use <STRONG>PANEL</STRONG> fields.
- The functions <B>show_panel</B> and <B>top_panel</B> are identical in this
+ 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, <B>show_panel</B> is intended for
- making a hidden panel visible (at the top of the stack) and <B>top_panel</B>
+ 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-PORTABILITY">PORTABILITY</a></H2><PRE>
- The panel facility was documented in SVr4.2 in <I>Character</I> <I>User</I> <I>Interface</I>
- <I>Programming</I> <I>(UNIX</I> <I>SVR4.2)</I>.
+ The panel facility was documented in SVr4.2 in <EM>Character</EM> <EM>User</EM> <EM>Interface</EM>
+ <EM>Programming</EM> <EM>(UNIX</EM> <EM>SVR4.2)</EM>.
It is not part of X/Open Curses.
A few implementations exist:
- <B>o</B> Systems based on SVr4 source code, e.g., Solaris, provide this
+ <STRONG>o</STRONG> Systems based on SVr4 source code, e.g., Solaris, provide this
library.
- <B>o</B> <B>ncurses</B> (since version 0.6 in 1993) and <B>PDCurses</B> (since version 2.2
+ <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 <I>u386mon</I> 2.20
+ domain implementation by Warren Tucker published in <EM>u386mon</EM> 2.20
(1990).
According to Tucker, the SystemV panel library was first released
Several developers have improved each of these; they are no longer
the same as Tucker's implementation.
- <B>o</B> NetBSD 8 (2018) has a panel library begun by Valery Ushakov in
+ <STRONG>o</STRONG> NetBSD 8 (2018) has a panel library begun by Valery Ushakov in
2015. This is based on the AT&T documentation.
</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
- <B><A HREF="curses.3X.html">curses(3X)</A></B>, <B><A HREF="curs_variables.3X.html">curs_variables(3X)</A></B>,
+ <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_variables.3x.html">curs_variables(3x)</A></STRONG>,
- This describes <B>ncurses</B> version 6.2 (patch 20210612).
+ This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20220813).
</PRE><H2><a name="h2-AUTHOR">AUTHOR</a></H2><PRE>
Originally written by Warren Tucker <wht@n4hgf.mt-park.ga.us>,
- primarily to assist in porting <I>u386mon</I> to systems without a native
+ primarily to assist in porting <EM>u386mon</EM> to systems without a native
panels library.
Repackaged for ncurses by Zeyd ben-Halim.
- <B><A HREF="panel.3X.html">panel(3X)</A></B>
+ <STRONG><A HREF="panel.3x.html">panel(3x)</A></STRONG>
</PRE>
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