curs_scr_dump(3curses)                        curs_scr_dump(3curses)


       NAME
             curs_scr_dump: scr_dump, scr_restore, scr_init, scr_set - read
             (write) a curses screen from (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
             contents 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 [see system(3S)] 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 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 getwin and
             putwin routines [see curs_util(3curses)].

          Return Values
             All routines return the integer ERR upon failure and OK upon
             success.




                           Copyright 1994 Novell, Inc.               Page 1

      curs_scr_dump(3curses)                        curs_scr_dump(3curses)


      REFERENCES
            curses(3curses), curs_initscr(3curses), curs_refresh(3curses),
            curs_util(3curses), system(3S)

      NOTICES
            The header file curses.h automatically includes the header
            files stdio.h and unctrl.h.

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







































                          Copyright 1994 Novell, Inc.               Page 2