Panels are curses(3X) 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 stdscr 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 stdscr
window is beneath all panels, and is not considered part of the
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 curses(3X), make only
high-level curses calls, and work anywhere terminfo curses does.
allocates a PANEL structure, associates it with win, places
the panel on the top of the stack (causes it to be
displayed above any other panel) and returns a pointer to the
refreshes the virtual screen to reflect the relations between
the panels in the stack, but does not call doupdate to refresh
the physical screen. Use this function and not wrefresh or
wnoutrefresh. update_panels may be called more than once
before a call to doupdate, but doupdate is the function
responsible for updating the physical screen.
removes the given panel from the stack and deallocates the
PANEL structure (but not its associated window).
removes the given panel from the panel stack and thus hides it
from view. The PANEL structure is not lost, merely removed
from the stack.
returns TRUE if the panel is in the panel stack, FALSE if it
is not. If the panel is a null pointer, return ERR.
makes a hidden panel visible by placing it on top of the
panels in the panel stack. See COMPATIBILITY below.
puts the given visible panel on top of all panels in the
stack. See COMPATIBILITY below.
puts panel at the bottom of all panels.
moves the given panel window so that its upper-left corner is
at starty, startx. It does not change the position of the
panel in the stack. Be sure to use this function, not mvwin,
to move a panel window.
replaces the current window of panel with window (useful, for
example if you want to resize a panel; if you're using
ncurses, you can call replace_panel on the output of
wresize(3X)). It does not change the position of the panel in
returns a pointer to the panel above pan. If the panel
argument is (PANEL *)0, it returns a pointer to the bottom
panel in the stack.
returns a pointer to the panel just below pan. If the panel
argument is (PANEL *)0, it returns a pointer to the top panel
in the stack.
sets the panel's user pointer.
returns the user pointer for a given panel.
returns a pointer to the window of the given panel.
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 programming interface is unchanged). The
PANEL data structures are merely similar. The programmer is
cautioned not to directly use PANEL fields.
The functions show_panel and top_panel are identical in this
implementation, and work equally well with displayed or hidden
panels. In the native System V implementation, show_panel is
intended for making a hidden panel visible (at the top of the stack)
and top_panel 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.
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