SAOtng supports a shared memory XPA public access point through which it can access FITS data created by external programs. ... xpaset SAOtng"; /* get info about shared segment, including size of segment */ shmctl(shmid, IPC_STAT, ); /* send this info to the SAOtng "shm" public access point */ sprintf(tbuf, fmt, shm_name, shmid, sbuf.shm_segsz); system(tbuf); SAOtng will retrieve an image section from the shared memory segment, scale it, and display it. ...