Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!bbn!apple!well!ewhac
From: ewhac@well.UUCP (Leo 'Bols Ewhac' Schwab)
Newsgroups: comp.sys.amiga
Subject: Re: Forbid() vs LockIBase() question
Message-ID: <11486@well.UUCP>
Date: 2 May 89 09:04:32 GMT
References: <14333@louie.udel.EDU>
Reply-To: ewhac@well.UUCP (Leo 'Bols Ewhac' Schwab)
Organization: Verbatim Corp.:  Abort, Retry, Ignore?
Lines: 37
Quote: "Shoot the Lawyers!  More skin on HBO!"  -- L. H. Puttgrass

In article <14333@louie.udel.EDU> TEETER%HUMBER.BITNET@cornellc.cit.cornell.edu (Doug Teeter) writes:
>  Under what conditions are they required and which one should be used when?
>
>  ie. when adding IText or Border structures to an active gadget?

	RemoveGadget (foo, bar, grill, etc, etc, etc, ....);
	MuckWithGadgetGraphics ();
	AddGadget (even, more, inconsistent, parameters, ....);
	RefreshGadget (still, more, shades, of, stdio, parameter, ordering);

	[ I've been kvetching lately about how none of the Intuition gadget
manipulation function parameters are consistent, which makes it hard for me
to remember what they are. ]

>      when changing the ImageData pointer of an image?

	You can pretty much do this any time you want with impunity.  There
is a small chance of a collision, but if you lay things out right, you
should be able to avoid them.  If you are the only one who will be rendering
the Image, you *can* modify the ImageData pointer at any time.

>      when fiddling with Window Flag bits?
>
	Forbid ();
	FiddleWindowFlags ();		/*  Please be quick here.  */
	Permit ();

> Oh ya! Is it okay to use the ExtData(sp?)(just before the UserData) of the
>Window structure form my own purposes?
>
	Probably not.  However, JimM is God on this one.  JimM?

_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_
Leo L. Schwab -- The Guy in The Cape	INET: well!ewhac@ucbvax.Berkeley.EDU
 \_ -_		Recumbent Bikes:	UUCP: pacbell > !{well,unicom}!ewhac
O----^o	      The Only Way To Fly.	      hplabs / (pronounced "AE-wack")
"Work FOR?  I don't work FOR anybody!  I'm just having fun."  -- The Doctor