CURSSCRDMP(3X-SVR4)RISC/os Reference ManualURSSCRDMP(3X-SVR4)



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

SYNOPSIS
     #include <curses.h>

     int scrdump(char *filename);

     int scrrestore(char *filename);
     int scrinit(char *filename);

     int scrset(char *filename);

DESCRIPTION
     With the scrdump routine, the current contents of the vir-
     tual screen are written to the file filename.

     With the scrrestore routine, the virtual screen is set to
     the contents of filename, which must have been written using
     scrdump.  The next call to doupdate restores the screen to
     the way it looked in the dump file.

     With the scrinit 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.  scrinit is used after
     initscr or a system [see system(BA_LIB)] call to share the
     screen with another process which has done a scrdump 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 scrset routine is a combination of scrrestore and
     scrinit.  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
     The header file <curses.h> automatically includes the header
     files <stdio.h> and <unctrl.h>.




                        Printed 11/19/92                   Page 1

CURSSCRDMP(3X-SVR4)RISC/os Reference ManualURSSCRDMP(3X-SVR4)



     Note that scrinit, scrset, and scrrestore may be macros.

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


















































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