'\" te
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.TH redrawwin 3XCURSES "5 Jun 2002" "SunOS 5.11" "X/Open Curses Library Functions"
.SH NAME
redrawwin, wredrawln \- redraw screen or portion of screen
.SH SYNOPSIS
.LP
.nf
\fBcc\fR [ \fIflag\fR... ] \fIfile\fR... \fB-I\fR /usr/xpg4/include \fB -L \fR /usr/xpg4/lib \e
\fB -R \fR /usr/xpg4/lib \fB -lcurses \fR [ \fIlibrary\fR... ]

\fBc89\fR [ \fIflag\fR... ] \fIfile\fR... \fB-lcurses\fR [ \fIlibrary\fR... ]

#include <curses.h>

\fBint\fR \fBredrawwin\fR(\fBWINDOW *\fR\fIwin\fR);
.fi

.LP
.nf
\fBint\fR \fBwredrawln\fR(\fBWINDOW *\fR\fIwin\fR, \fBint\fR \fIbeg_line\fR, \fBint\fR \fInum_lines\fR);
.fi

.SH PARAMETERS
.sp
.ne 2
.mk
.na
\fB\fIwin\fR\fR
.ad
.RS 13n
.rt  
Is a pointer to the window in which to redraw.
.RE

.sp
.ne 2
.mk
.na
\fB\fIbeg_line\fR\fR
.ad
.RS 13n
.rt  
Is the first line to redraw.
.RE

.sp
.ne 2
.mk
.na
\fB\fInum_lines\fR\fR
.ad
.RS 13n
.rt  
Is the number of lines to redraw.
.RE

.SH DESCRIPTION
.sp
.LP
The \fBredrawwin()\fR and \fBwredrawln()\fR functions force portions of a
window to be redrawn to the terminal when the next refresh operation is
performed.
.sp
.LP
The \fBredrawwin()\fR function forces the entire window \fIwin\fR to be
redrawn, while the \fBwredrawln()\fR function forces only \fInum_lines\fR lines
starting with \fIbeg_line\fR 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.
.sp
.LP
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.
.SH RETURN VALUES
.sp
.LP
On success, these functions return \fBOK\fR. Otherwise, they return \fBERR\fR.
.SH ERRORS
.sp
.LP
None.
.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
tab() box;
cw(2.75i) |cw(2.75i) 
lw(2.75i) |lw(2.75i) 
.
ATTRIBUTE TYPEATTRIBUTE VALUE
_
Interface StabilityStandard
_
MT-LevelUnsafe
.TE

.SH SEE ALSO
.sp
.LP
\fBdoupdate\fR(3XCURSES), \fBlibcurses\fR(3XCURSES), \fBattributes\fR(5),
\fBstandards\fR(5)