Path: utzoo!mnetor!uunet!rosevax!ems!nis!stag!daemon
From: ihnp4!pell!orc@stag.UUCP
Newsgroups: comp.sys.atari.st
Subject: Fforce() example.
Message-ID: <331@stag.UUCP>
Date: 8 Feb 88 07:02:55 GMT
Sender: daemon@stag.UUCP
Lines: 38


  
   In an article a day ago (sorry, STadel doesn't give me message ID's -- 
thank god!), wes@obie.UUCP said something about using Fforce() to redirect 
i/o. Well, his example was wrong.  Fforce is passed two file descriptors and 
it forces the first one to point at the second one, like so: 
  
   /* 
    * redirect printer output into a file 
    */ 
  
   foo = Fcreate("a:\printer.out", 0); 
   save= Fdup(PRN);                       /* wanna save the old printer... */ 
   if (Fforce(PRN,foo) == 0) { 
       /* 
        * do printer stuff 
        */ 
       Fclose(PRN); 
       Fforce(PRN,save); 
       Fclose(save); 
       Fclose(foo); 
   } 
   else 
       Cconws("ACK!  Can't redirect the printer!\r\n"); 
  
  
 (I hate so see this already brain-dead OS subjected to further indignities :-) 
  
 --------------------------- 
  
 jsm@laird:  HI!  Yes, your stuff is making it to usenet.  Call Pell one 
of these days and you might see something you posted in the 
comp.sys.atari.st) room. 

                                -orc 
                                -david parsons 
				-ihnp4!pell!orc
                                -orc@pell (US 6123779239 3/12/2400 baud)