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)

June 5, 2002 REDRAWWIN(3XCURSES)