Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!think.com!hsdndev!dartvax!Roger.W.Brown
From: Roger.W.Brown@dartmouth.edu (Roger W. Brown)
Newsgroups: comp.sys.mac.programmer
Subject: Re: ?'s about HC 2.0 XCMD Text Edit stuff
Message-ID: <1991Mar18.215229.13190@dartvax.dartmouth.edu>
Date: 18 Mar 91 21:52:29 GMT
References: <4.27CF2777@mmug.edgar.mn.org>
Sender: news@dartvax.dartmouth.edu (The News Manager)
Organization: Dartmouth College, Hanover, NH
Lines: 49

In article <4.27CF2777@mmug.edgar.mn.org>
Edward.Blakes.Jr.@f13.n396.z1.mmug.edgar.mn.org (Edward Blakes Jr.)
writes:

> ******** Here's the code **********************************
> 	/* other declarations, etc. */
> 	
> 	TEHandle	fieldTE, toTE;		/* TE record of field */
> 	Handle		htxt;			/* Handle to text */
> 	StScrpHandle txt_scrap;		/* Handle to text style scrap */
> 	TEHandle	tempTE;			/* TE handle to temp area for pasting */
> 
> 	/* Get params stuff.  Nothing fishy here */
> 	
> 	
> 	/* Get fieldTE of FROM field and TO field */
> 
> 	fieldTE = GetFieldTE(paramPtr, TRUE, fromID, 0, NIL);
> 	toTE = GetFieldTE(paramPtr,TRUE,toID,0,NIL);
> 
> 	/* Select the entire toTE and paste it to a temp TErec */
> 	TESetSelect(0,32767,toTE);
> 
> 	/*** HC dies right here ***/
> 	TECopy (toTE);
> 	TEStylPaste(tempTE);
> 	


1. From the "final Version" fo the extended XCMD interface docs from
Apple: "the XCMD should NOT use the TEHandle returned by this callback
before adjusting the TEHandle^^.inPort field to point to another
grafport." .. because you might draw into the card's port. Maybe you
might also bomb??

2. Have you allocated tempTE somewhere?

>  Also, does GetFieldTE() return a copy of the TE record or a
copy of the handle to the field's TE record?

A copy of the whole record; you are instructed to dispose of the handle
when you are done. If it was not a handle, the real data would be
disposed along with it.

Any help? 
-----------------------------------------------------------------
Roger Brown                           Roger.W.Brown@dartmouth.edu
Courseware Development
Dartmouth College, Hanover, NH