Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!purdue!decwrl!shelby!polya!ali
From: ali@polya.Stanford.EDU (Ali T. Ozer)
Newsgroups: comp.sys.next
Subject: Re: copying Controls
Message-ID: <11126@polya.Stanford.EDU>
Date: 4 Aug 89 23:12:20 GMT
References: <23996@labrea.Stanford.EDU> <10884@polya.Stanford.EDU> <10906@polya.Stanford.EDU>
Sender: Ali T. Ozer <ali@Polya.Stanford.EDU>
Reply-To: aozer@NeXT.com (Ali Ozer)
Organization: .
Lines: 21

In article <10906@polya.Stanford.EDU> aozer@NeXT.com (Ali Ozer) writes:
>Given this, it does indeed seem like Button (and various other AppKit
>objects) do not respond properly to the "copy" method. I'll make a
>suggestion concerning this...

I did get back one valuable piece of information concerning
making copies of objects: Provided the object is able to read or write
itself (and all AppKit objects do), use the typedstream package to copy
objects:

	// We want to make a copy of object obj.
	int length;
	char *buf = NXWriteRootObjectToBuffer (obj, &length);
	copyOne = NXReadObjectFromBuffer (buf, length);
	copyTwo = NXReadObjectFromBuffer (buf, length);
	// Make as many copies as you wish...
	   ...
	// Then free the buffer
	NXFreeObjectBuffer (buf, length);

Ali Ozer, NeXT Developer Support
aozer@NeXT.com