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curs_scr_dump(3curses)

curs_scr_dump(3CURSES)     Curses Library Functions     curs_scr_dump(3CURSES)

NAME
       curs_scr_dump, scr_dump, scr_restore, scr_init, scr_set - read or write
       a curses screen from or to a file

SYNOPSIS
       cc [ flag ... ] file ... -lcurses [ library ... ]
       #include <curses.h>

       int scr_dump(char *filename);


       int scr_restore(char *filename);


       int scr_init(char *filename);


       int scr_set(char *filename);

DESCRIPTION
       With the scr_dump() routine, the current contents of the virtual screen
       are written to the file filename.


       With  the  scr_restore() routine, the virtual screen is set to the con‐
       tents of filename, which must have been written using  scr_dump().  The
       next call to doupdate() restores the screen to the way it looked in the
       dump file.


       With  the  scr_init() routine, the contents of filename are read in and
       used to initialize the curses data structures about what  the  terminal
       currently  has  on  its  screen. If the data is determined to be valid,
       curses bases its next update of the screen on this  information  rather
       than  clearing the screen and starting from scratch. scr_init() is used
       after initscr() or a system(3C) call to share the screen  with  another
       process  which  has done a scr_dump() after its endwin() call. The data
       is declared invalid if the time-stamp of the tty is old or the terminfo
       capabilities rmcup() and nrrmc() exist.


       The scr_set() routine is a combination of scr_restore() and scr_init().
       It tells the program that the information in filename is what  is  cur‐
       rently  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  getwin()  and
       putwin() routines (see curs_util(3CURSES)).

RETURN VALUES
       All routines return the integer ERR upon failure and OK upon success.

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

       tab()  box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
       TRIBUTE VALUE _ MT-LevelUnsafe


SEE ALSO
       curs_initscr(3CURSES),    curs_refresh(3CURSES),    curs_util(3CURSES),
       curses(3CURSES), system(3C), attributes(7)

NOTES
       The  header <curses.h> automatically includes the headers <stdio.h> and
       <unctrl.h>.


       Note that scr_init(), scr_set(), and scr_restore() may be macros.

Oracle Solaris 11.4               31 Dec 1996           curs_scr_dump(3CURSES)
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