curs_scr_dump man page on Oracle

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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 filename.

       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 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 capabilities rmcup and nrrmc exist; also if	 the  terminal
       has been written to since the preceding 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.

       X/Open  defines no error conditions.  In this implementation, each will
       return an error if the file cannot be opened.

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 con‐
       sidered invalid "if the time-stamp of the tty is old" but do not define
       "old".

SEE ALSO
       curses(3X),  curs_initscr(3X),  curs_refresh(3X),  curs_util(3X),  sys‐
       tem(3)

							     curs_scr_dump(3X)
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