Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!apple!well!gurgle
From: gurgle@well.sf.ca.us (Pete Gontier)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Check DialogPtr returned by GetNewDialog?=YES + DETAILED SOLUTION
Message-ID: <24101@well.sf.ca.us>
Date: 9 Apr 91 02:39:29 GMT
References: <1991Apr5.225347.3100@dartvax.dartmouth.edu>
Organization: cellular
Lines: 25

In article <1991Apr5.225347.3100@dartvax.dartmouth.edu> ari@eleazar.dartmouth.edu (Ari Halberstadt) writes:
> A. The disk containing the application could have been placed offline.
> B. There may not be anough memory to create the dialog.
> 1. Make sure the 'DLOG' resource is loaded and is not a nil handle
> 2. Do the same for the 'DITL' resource.
> 3. Allocate a pointer to contain the dialog, after making sure that
> 4. Save the current value of ResErrProc, and install your own
> 5. Call GetNewDialog, passing it the pointer allocated in step 3.
> 6. Restore the value of ResErrProc. Then check the value returned by
> 7. If the dialog pointer is nil, try to display an error message. The
>8. Recover from the dialog error as appropriate for your application.

Maybe I'm missing something here, but whatever happened to...

	GetNewDialog, check for a nil pointer
	ResError
	MemError

On failure, make an appeal to either...

	an earlier CouldAlert
	Notification Manager
-- 
 Pete Gontier, gurgle@well.sf.ca.us
 Software Imagineer, Kiwi Software, Inc.