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From: summer@sarcasm.trl.oz.au (Mark Summerfield)
Newsgroups: comp.sys.mac.programmer
Subject: Problem with GetString? Or is it me?
Message-ID: <1991Jan16.020012.24103@trl.oz.au>
Date: 16 Jan 91 02:00:12 GMT
Sender: news@trl.oz.au (USENET News System)
Reply-To: m.summerfield@trl.oz.au
Organization: Telecom Research Laboratories, Melbourne, Australia
Lines: 38

In my latest project I am trying to do all the "right things", and
am using 'STR ' resources for absolutely all text. In particular,
my error alert code looks like this:

void ErrorAlert(alrtID, strID)
	short		alrtID, strID;
{
	StringHandle	theString;

	if ((theString = GetString(strID)) == nil) {
		/* Handle missing resource case... */
	}

	HLock(theString);
	ParamText(*theString, nil, nil, nil);
	(void) CentreStopAlert(alrtID, nil);
		/* A function of mine that behaves exactly like StopAlert()
		   except that at reads in the resource and centres the
		   dialog on the screen before displaying it... works fine */
	HUnlock(theString);	/* Probably unnecessary */
	DisposHandle(theString);
}

This works fine the first time I use it for any given strID, the problem
is that if it is called a second time (at any later stage) with a strID
that has been used before (ie if the same error occurs twice) then the
handle returned by GetString() points to an empty string! I've checked this
with SADE -- I'm not just guessing from the empty dialog box :-)

What am I missing here? Please e-mail, our feed is still very poor.

Thanks in advance,

Mark.
------------------------------------------------+-----------------------------+
Mark Summerfield, Telecom Research Laboratories |     Heisenberg may have     |
ACSnet[AARN/Internet]: m.summerfield@trl.oz[.au]|         been here!          |
Snail: PO Box 249, Clayton, Vic., 3168          +-----------------------------+