Validate NSDocument on Quit
Validate NSDocument on Quit
- Subject: Validate NSDocument on Quit
- From: Keary Suska <email@hidden>
- Date: Sun, 05 Oct 2014 08:36:26 -0600
I am trying to prevent a quit in a document-based app when data in a document is invalid. AFAICT when auto save is turned on none of the normal document closing methods are called, and when the app delegate is called, NSDocumentController shows no existing documents. It might also have to do with the "Ask to keep changes" preference. Has anyone figured out how to trap closing to prevent saving possibly invalid data?
TIA,
Keary Suska
Esoteritech, Inc.
"Demystifying technology for your home or business"
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