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Re: Notification Manager Callback Argument How ?

 On Nov 9, 2005, at 9:17 AM, Matthias Schmidt wrote:

 how can I pass an argument (in this case an IconRef) to a callback
 method of the notification manager ?
 if i try to abuse one of the fields of the NMRec the thing is
 crashing.


I wrote:

That's what the nmRefCon field is for. 

Laurence Harris <email@hidden> wrote:

The icon is ignored in Mac OS X if I recall correctly.

The icon was in the nmIcon field, not nmRefCon. Anyway Mr. Schmidt did not say what he wanted to use an IconRef for, so I did not assume that he was trying to display an icon in an Apple menu.


Matthias Schmidt wrote:

Anyway I tried to abuse that field and pass my argument through that to
the callback, but it caused a crash, when the callback routine was
called. (Why it causes a crash, when we don't need that field anymore?)

This is not an abuse, the documentation says that nmRefCon is for use by your application. I think there must be some other reason for the crash. For instance maybe the IconRef is no longer valid when the response callback is called.

--
  James W. Walker, ScriptPerfection Enterprises, Inc.
  <http://www.write-brain.com/>
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 >Re: Notification Manager Callback Argument How ? (From: Laurence Harris <email@hidden>)



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