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From: jkc@Apple.COM (John Kevin Calhoun)
Newsgroups: comp.sys.mac.hypercard
Subject: Re: XCMD/XFCN questions.
Message-ID: <48168@apple.Apple.COM>
Date: 16 Jan 91 19:03:13 GMT
References: <91Jan16.102932*Arne.Venstad@elab-runit.sintef.no>
Organization: Apple Computer Inc., Cupertino, CA
Lines: 18


In article <91Jan16.102932*Arne.Venstad@elab-runit.sintef.no>
Arne.Venstad@elab-runit.sintef.no (Arne Venstad) writes:
>
>> ...is it safe to reallocate a handle (by SetHandleSize) delivered to the
>XCMD/XFCN from HC?

It's safe to resize the handle with SetHandleSize.

>Is it possible to let a message "exception" which are sent from a XCMD by
>SendCardMessage, close the stack without returning to the XCMD?

No.  After handling a callback request from an XCMD, HyperCard always
returns to the XCMD.

Kevin Calhoun
HyperCard Team
Apple Computer, Inc.