REDRAWWIN(3XCURSES) X/Open Curses Library Functions REDRAWWIN(3XCURSES)

NAME


redrawwin, wredrawln - redraw screen or portion of screen

SYNOPSIS


cc [ flag... ] file... -I /usr/xpg4/include -L /usr/xpg4/lib \
-R /usr/xpg4/lib -lcurses [ library... ]

c89 [ flag... ] file... -lcurses [ library... ]

#include <curses.h>

int redrawwin(WINDOW *win);


int wredrawln(WINDOW *win, int beg_line, int num_lines);


PARAMETERS


win
Is a pointer to the window in which to redraw.


beg_line
Is the first line to redraw.


num_lines
Is the number of lines to redraw.


DESCRIPTION


The redrawwin() and wredrawln() functions force portions of a window to
be redrawn to the terminal when the next refresh operation is performed.


The redrawwin() function forces the entire window win to be redrawn,
while the wredrawln() function forces only num_lines lines starting with
beg_line to be redrawn. Normally, refresh operations use optimization
methods to reduce the actual amount of the screen to redraw based on the
current screen contents. These functions tell the refresh operations
not to attempt any optimization when redrawing the indicated areas.


These functions are useful when the data that exists on the screen is
believed to be corrupt and for applications such as screen editors that
redraw portions of the screen.

RETURN VALUES


On success, these functions return OK. Otherwise, they return ERR.

ERRORS


None.

ATTRIBUTES


See attributes(7) for descriptions of the following attributes:


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Standard |
+--------------------+-----------------+
|MT-Level | Unsafe |
+--------------------+-----------------+

SEE ALSO


doupdate(3XCURSES), libcurses(3XCURSES), attributes(7), standards(7)

illumos June 5, 2002 REDRAWWIN(3XCURSES)