57 lines
2.2 KiB
Groff
57 lines
2.2 KiB
Groff
|
.TH curs_scr_dump 3X ""
|
||
|
|
.SH NAME
|
||
|
|
\fBcurs_scr_dump\fR: \fBscr_dump\fR, \fBscr_restore\fR,
|
||
|
|
\fBscr_init\fR, \fBscr_set\fR - read (write) a \fBncurses\fR screen
|
||
|
|
from (to) a file
|
||
|
|
.SH SYNOPSIS
|
||
|
|
\fB#include <ncurses.h>\fR
|
||
|
|
|
||
|
|
\fBint scr_dump(char *filename);\fR
|
||
|
|
.br
|
||
|
|
\fBint scr_restore(char *filename);\fR
|
||
|
|
.br
|
||
|
|
\fBint scr_init(char *filename);\fR
|
||
|
|
.br
|
||
|
|
\fBint scr_set(char *filename);\fR
|
||
|
|
.br
|
||
|
|
.SH DESCRIPTION
|
||
|
|
The \fBscr_dump\fR routine dumps the current contents of the virtual screen
|
||
|
|
to the file \fIfilename\fR.
|
||
|
|
|
||
|
|
With the \fBscr_restore\fR routine, the virtual screen is set to the contents
|
||
|
|
of \fIfilename\fR, which must have been written using \fBscr_dump\fR. The next
|
||
|
|
call to \fBdoupdate\fR restores the screen to the way it looked in the dump
|
||
|
|
file.
|
||
|
|
|
||
|
|
With the \fBscr_init\fR routine, the contents of \fIfilename\fR are read in and
|
||
|
|
used to initialize the \fBncurses\fR data structures about what the terminal
|
||
|
|
currently has on its screen. If the data is determined to be valid,
|
||
|
|
\fBncurses\fR bases its next update of the screen on this information rather
|
||
|
|
than clearing the screen and starting from scratch. \fBscr_init\fR is used
|
||
|
|
after \fBinitscr\fR or a \fBsystem\fR [see \fBsystem\fR(BA_LIB)] call to share
|
||
|
|
the screen with another process which has done a \fBscr_dump\fR after its
|
||
|
|
\fBendwin\fR call. The data is declared invalid if the time-stamp of the tty
|
||
|
|
is old or the terminfo capabilities \fBrmcup\fR and \fBnrrmc\fR exist.
|
||
|
|
|
||
|
|
The \fBscr_set\fR routine is a combination of \fBscr_restore\fR and
|
||
|
|
\fBscr_init\fR. It tells the program that the information in \fIfilename\fR is
|
||
|
|
what is currently on the screen, and also what the program wants on the screen.
|
||
|
|
This can be thought of as a screen inheritance function.
|
||
|
|
|
||
|
|
To read (write) a window from (to) a file, use the \fBgetwin\fR and
|
||
|
|
\fBputwin\fR routines [see \fBcurs_util\fR(3X)].
|
||
|
|
.SH RETURN VALUE
|
||
|
|
All routines return the integer \fBERR\fR upon failure and \fBOK\fR
|
||
|
|
upon success.
|
||
|
|
.SH NOTES
|
||
|
|
Note that \fBscr_init\fR, \fBscr_set\fR, and \fBscr_restore\fR may be macros.
|
||
|
|
.SH SEE ALSO
|
||
|
|
\fBncurses\fR(3X), \fBcurs_initscr\fR(3X), \fBcurs_refresh\fR(3X),
|
||
|
|
\fBcurs_util\fR(3X), \fBsystem\fR(3S)
|
||
|
|
.\"#
|
||
|
|
.\"# The following sets edit modes for GNU EMACS
|
||
|
|
.\"# Local Variables:
|
||
|
|
.\"# mode:nroff
|
||
|
|
.\"# fill-column:79
|
||
|
|
.\"# End:
|