'\" te
.\"  Copyright (c) 1990, 1995 by Mortice Kern Systems Inc.  All Rights Reserved  Portions Copyright (c) 1996, Sun Microsystems, Inc.  All Rights Reserved
.\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License").  You may not use this file except in compliance with the License.
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.TH scr_dump 3XCURSES "5 Jun 2002" "SunOS 5.11" "X/Open Curses Library Functions"
.SH NAME
scr_dump, scr_init, scr_restore, scr_set \- write screen contents to/from a
file
.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 \fBscr_dump\fR(\fBconst char *\fR\fIfilename\fR);
.fi

.LP
.nf
\fBint\fR \fBscr_init\fR(\fBconst char *\fR\fIfilename\fR);
.fi

.LP
.nf
\fBint\fR \fBscr_restore\fR(\fBconst char *\fR\fIfilename\fR);
.fi

.LP
.nf
\fBint\fR \fBscr_set\fR(\fBconst char *\fR\fIfilename\fR);
.fi

.SH PARAMETERS
.sp
.ne 2
.mk
.na
\fB\fIfilename\fR\fR
.ad
.RS 12n
.rt  
Is a pointer to the file in which screen contents are written.
.RE

.SH DESCRIPTION
.sp
.LP
These function perform input/output functions on a screen basis.
.sp
.LP
The \fBscr_dump()\fR function writes the contents of the virtual screen,
\fBcurscr\fR, to \fIfilename\fR.
.sp
.LP
The \fBscr_restore()\fR function reads the contents of \fIfilename\fR  from
\fBcurscr\fR (which must have been written with \fBscr_dump()\fR).  The next
refresh operation restores the screen to the way it looks in \fIfilename\fR.
.sp
.LP
The \fBscr_init()\fR function reads the contents of \fIfilename\fR and uses
those contents to initialize the X/Open Curses data structures to what is
actually on screen. The next refresh operation bases its updates on this data,
unless the  terminal has been written to since \fIfilename\fR was saved or the
\fBterminfo\fR capabilities \fBrmcup\fR and \fBnrrmc\fR are defined for  the
current terminal.
.sp
.LP
The \fBscr_set()\fR function combines \fBscr_restore()\fR and
\fBscr_init()\fR.   It informs the program that the contents of the file
\fIfilename\fR are what is currently on the screen and that the program wants
those contents on 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
\fBdelscreen\fR(3XCURSES), \fBdoupdate\fR(3XCURSES), \fBendwin\fR(3XCURSES),
\fBgetwin\fR(3XCURSES), \fBlibcurses\fR(3XCURSES), \fBattributes\fR(5),
\fBstandards\fR(5)