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Anomalous behaviour of 'GetSheetWindowParent'

Subject: Anomalous behaviour of 'GetSheetWindowParent'
From: BDJV - Michael Collins <email@hidden>
Date: Tue, 24 Jun 2003 17:41:44 -0400

'AppUsingSheets' is an example of an application supporting document-model (sheet) printing dialog. So I'd expect 'GetSheetWindowParent' to return the document window's WindowRef when presented with 'GetControlOwner(userPane)' [which I would expect to be the sheet's WindowRef].

Guess what? It returns 'noErr' as a function result, but NULL as a 'WindowRef'! Any explanation, or am I misunderstanding something?

Michael

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