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NSAlert synchronous sheet?

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NSAlert synchronous sheet?

Subject: NSAlert synchronous sheet?
From: Hamish Allan <email@hidden>
Date: Tue, 22 Mar 2005 23:26:27 +0000

Hi,

NSAlert seems to provide two ways to run:

– runModal, for blocking application-modal dialogs, or – beginSheetModalForWindow:modalDelegate:didEndSelector:contextInfo:, for non-blocking document-modal sheets.

I want a blocking document-modal sheet, for an "Are you sure" type of question in response to a windowShouldClose:, but I can see that this would tie up the run loop and prevent other document windows from functioning. However, it's not clear to me how to implement this asychronously. Can anybody point me in the right direction?

Thanks,
Hamish

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