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RedHat 9 (Linux i386) - man page for scr_init (redhat section 3X)

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curs_scr_dump(3X)								curs_scr_dump(3X)

NAME
       scr_dump, scr_restore, scr_init, scr_set - read (write) a curses screen from (to) a file

SYNOPSIS
       #include <curses.h>

       int scr_dump(const char *filename);
       int scr_restore(const char *filename);
       int scr_init(const char *filename);
       int scr_set(const char *filename);

DESCRIPTION
       The  scr_dump  routine  dumps the current contents of the virtual screen to the file file-
       name.

       The scr_restore routine sets the virtual screen 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.

       The scr_init routine reads in the contents of filename and uses	them  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(BA_LIB)] 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 terminfo capa-
       bilities rmcup and nrrmc exist; also if the terminal has been written to since the preced-
       ing scr_dump call.

       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(3X)].

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

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

PORTABILITY
       The XSI Curses standard, Issue 4, describes these functions (adding the const qualifiers).

       The SVr4 docs merely say under scr_init that the dump data is also considered invalid  "if
       the time-stamp of the tty is old" but don't define "old".

SEE ALSO
       curses(3X), curs_initscr(3X), curs_refresh(3X), curs_util(3X), system(3S)

										curs_scr_dump(3X)
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