If the file's data is valid, the next screen update is based on the contents of the file rather than clearing the screen and starting from scratch. You can allow more than one process to share screen dumps. Both processes must be run from the same terminal. If you are allowing two processes to share a screen dump, it is important to understand that one process starts up another process.
Control is passed back to the first process.
OK Indicates that the curses data structures were successfully initialized using the contents of the dump file. Parameters Filename Points to a dump file. Writing and Debugging Programs .