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curs_scr_dump(S)


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

Syntax

cc ... -lcurses

#include <curses.h>

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

Description

scr_dump

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

scr_restore

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

scr_init

With the scr_init(S) routine, the contents of filename are read in and used to initialize the curses(S) 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(S) or a system(S) call to share the screen with another process which has done a scr_dump( ) after its endwin(S) call. The data is declared invalid if the time-stamp of the tty is old or the terminfo capabilities rmcup and nrrmc exist.

scr_init

The scr_set(S) 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 routines getwin(S) and putwin(S).

Return values

All routines return the integer ERR on failure and OK on success.

Warning

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

The following can be macros: scr_init( ), scr_set( ), and scr_restore( ).

Files


/usr/lib/libcurses.a
the library

See also

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

Standards conformance

scr_dump(S), scr_restore(S), scr_set(S), and scr_init(S) are not part of any currently supported standard; they were developed by UNIX System Laboratories, Inc. and are maintained by The SCO Group.
© 2003 Caldera International, Inc. All rights reserved.
SCO OpenServer Release 5.0.7 -- 11 February 2003