Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uflorida!gatech!rutgers!cbmvax!vu-vlsi!swatsun!jackiw
From: jackiw@cs.swarthmore.edu (Nick Jackiw)
Newsgroups: comp.sys.mac.programmer
Subject: Notification Manager at Boot
Message-ID: <2430@ilium.cs.swarthmore.edu>
Date: 15 Feb 89 15:40:53 GMT
Reply-To: jackiw@swatsun.UUCP ()
Distribution: na
Organization: Visual Geometry Project, Swarthmore College, PA
Lines: 28

First, my hat's off to the net. Bravo, folks, you're the best.

Now on to the meat dish:

I want to use the Notification Manager in a sys-heap task (hooked into
GetNextEvent) which is installed at boot.  According to TN#184, the
NM is only around is System 6.0 or later, so I have to check whether
that's present at INIT time. Unfortunately, IM V-5 says "All of the
Toolbox Managers must be initialized before calling SysEnvirons." So,
that rules out SysEnvirons.  Now if I try "Checking for Specify
Functionality" ala TN#156, by comparing trap 0x5E (NMInstall)'s address
to trap 0x9F (UnImplementTrap), the comparison FAILS under old systems,
where the Notification Manager is undefined. 

Q: HOW DO I TELL IF I CAN USE IT DURING MY INIT, SO I CAN CONFIGURE MY
FUTURE BEHAVIOR APPROPRIATELY?

Any responses, official or un-official, will be thoroughly enjoyed. And
appreciated.

-Nick


-- 
+-------------------+-jackiw@cs.swarthmore.edu / !rutgers!bpa!swatsun!jackiw-+
|  nicholas jackiw  | jackiw%campus.swarthmore.edu@swarthmr.bitnet           |
+-------------------+-VGP/MathDept/Swarthmore College, Swarthmore, PA 19081--+
By the time my employer decides on its opinion, I'll be dead.