Path: utzoo!utgpu!water!watmath!clyde!rutgers!ucsd!ucbvax!hplabs!hpcea!hpcilzb!tedj
From: tedj@hpcilzb.HP.COM (Ted Johnson)
Newsgroups: comp.sys.mac
Subject: Re: Re: (LSC) Deep Dark Secrets Wanted! (also LSP)
Message-ID: <870127@hpcilzb.HP.COM>
Date: 29 Jan 88 18:18:17 GMT
References: <870111@hpcilzb.HP.COM>
Organization: HP Design Tech Center - Santa Clara, CA
Lines: 62



LSC Deep Dark Secrets SUMMARY:

Okay folks, here is a summary of the e-mail
responses I have received:

	Q1: how to black out the entire screen, including
            JClock?

	A1: The trick here is that JClock is a VBL task,
	    and the only way to kill it is to disable
            VBL tasks.  If your only VBL task is JClock,
            then this is probably okay; JClock    
            won't "lose track" of the time, because it
            doesn't keep track of the time.  If just calls
	    a ROM routine once a second to get the correct
            time. 

	Q2: How to write an INIT?

	A2: This turned out to be extremely easy.  Oliver
            Steele's posted response (see above) did the
            trick.  For more info., refer to Technical Note
            #14 and #110.  WARNING:  an INIT cannot use globals,
	    cannot directly access other globals (such as
            QuickDraw's), and cannot be segmented. 

	Q3: How to make a DA live forever?

	A3: Many people have suggested doing a Get Info 
            (from inside of ResEdit) on
            the resources which make up the DA, and setting
            the "System Heap" flag.  (NOTE:  This is different
            from the "System" flag that you see when you do a
            "Get Info" the DA's file! The latter is to indicate
            whether or not the file is a "system file", i.e,
            whether or not it should have an icon like the Finder,
            System, etc.)

	    UNFORTUNATELY, I have not got this to work yet.  The DA
            I want to *live forever* is the "Windows" DA that is
            shipped with LSC (it is used when you have tons of windows
            opened up on your desktop, and want to bring one to the
            top.  The Windows DA has a menu with each window's title
            listed as a menu item.  Select the title, and voila! 
	    That window is now the top window.)

	    What am I doing wrong?  Should I alter the code of this DA so
            that it doesn't ask for a "goodbye kiss" (right now it does....)?
            
            Please e-mail responses, and I will summarize for the net.

-Ted

------------------------------
Ted Johnson
Hewlett-Packard
Design Technology Center
(408)553-3555
UUCP: ...hplabs!hpdtc!tedj