Path: utzoo!attcan!uunet!lll-winken!lll-tis!helios.ee.lbl.gov!pasteur!ames!pacbell!varian!kinetics!buzz
From: buzz@kinetics.UUCP (Mahboud Zabetian)
Newsgroups: comp.sys.mac.programmer
Subject: cdev/Control Panel bug or undocumented action?
Message-ID: <611@kinetics.UUCP>
Date: 3 Aug 88 23:45:20 GMT
Reply-To: buzz@kinetics.UUCP (Mahboud Zabetian)
Organization: Kinetics, Inc.
Lines: 37




I am writing a cdev and noticed a funny behaviour when a closeDev message was
encountered.  It seems as if the value of CPDialog is not valid.  If I do a
GetCtlValue, the item is not found and a bus error occurs.(I do add numItems to
the number of my item).  

For instance, in the following code, a beep is sounded on a deActivDev, but
none for a closeDev:

case closeDev:
	GetDItem(CPDialog, MANBUTTON + numItems, &itemType, &ctrl, &box);
 	if (GetCtlValue(ctrl))
		SysBeep(9);
	TEToScrap();
	cdevValue = 0;
	tcPanel = nill;
	break;
case deActivDev:
	GetDItem(CPDialog, MANBUTTON + numItems, &itemType, &ctrl, &box);
 	if (GetCtlValue(ctrl)) 			 			
		SysBeep(9);

Does anyone know if the closeDev message is supposed to have such a side effect
or whether this is a bug?  Or am I making a mistake?

Thanx.
Standard Disclaimer:  Don't mind me, I'm just babbling.
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    Mahboud Zabetian	(415) 256-3702		buzz@kinetics.uucp
     Kinetics, Inc.			...!ucbvax!mtxinu!kinetics!buzz
   2540 Camino Diablo		      ***Coming soon: buzz@kinetics.com !!***
Walnut Creek, CA 94596		     mtxinu!kinetics!buzz@ucbvax.berkeley.edu
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