ncursesw-morphos/doc/html/man/panel.3x.html
Thomas E. Dickey ce4803687b ncurses 6.0 - patch 20170218
+ fix several formatting issues with manual pages.
+ correct read of terminfo entry in which all strings are absent or
  explicitly cancelled.  Before this fix, the result was that all were
  treated as only absent.
+ modify infocmp to suppress mixture of absent/cancelled capabilities
  that would only show as "NULL, NULL", unless the -q option is used,
  e.g., to show "-, @" or "@, -".
2017-02-19 02:52:26 +00:00

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<H1 class="no-header">panel 3x</H1>
<PRE>
<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-NAME">NAME</a></H2><PRE>
panel - panel stack extension for curses
</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>*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>
</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.
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.
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.
</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 rela-
tions 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 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 win-
dow.
<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><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><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 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>
In your library list, libpanel.a should be before libn-
curses.a; that is, you should say "-lpanel -lncurses", not
the other way around (which would give a link-error with
static libraries).
</PRE><H2><a name="h2-FILES">FILES</a></H2><PRE>
panel.h interface for the panels library
libpanel.a the panels library itself
</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 20170218).
</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.
<STRONG><A HREF="panel.3x.html">panel(3x)</A></STRONG>
</PRE>
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<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-SEE-ALSO">SEE ALSO</a></li>
<li><a href="#h2-AUTHOR">AUTHOR</a></li>
</ul>
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