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From: watt@eleazar.dartmouth.edu (Gill Watt)
Newsgroups: comp.sys.mac.programmer
Subject: GlobalToLocal() LocalToGlobal() information
Summary: see subject
Keywords: QuickDraw, GlobalToLocal, Window Managare
Message-ID: <1991Feb17.190448.19116@dartvax.dartmouth.edu>
Date: 17 Feb 91 19:04:48 GMT
Sender: news@dartvax.dartmouth.edu (The News Manager)
Distribution: comp
Organization: Dartmouth College, Hanover, NH
Lines: 27

howdy,

I have a quick question that someone in this group might be 
able to answer without too much trouble.

The (WindowPtr).portRect contains the dimensions of a window
in the local coordinate system.  To translate a point to the 
global coordinate system one uses LocalToGlobal( &point ).  

This LocalToGlobal() translation is simply addition or 
subtraction from some reference point (window location in 
global coordinates). This information is contained in the
WDEFResource boundsRect element, but I don't know where 
it goes during the GetWindow( ) function call.  

Where is this reference point stored? (structure? element?).

Where is this described?  I haven't been able to find anything
in IM.  

Thanks in advance.

-- 
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Gill Watt (watt@eleazar.dartmouth.edu)
Thayer School of Engineering, Dartmouth College, Hanover, NH  03755
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