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Re: Accessing undo stack?
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Re: Accessing undo stack?


  • Subject: Re: Accessing undo stack?
  • From: Magnus Strand <email@hidden>
  • Date: Thu, 07 Apr 2005 09:42:15 +0200

Hi Duncan,

I have little experience of this, but perhaps you can use this:

NSUndomanager method:
groupingLevel

|- (|int|)|groupingLevel||

Returns the number of nested undo groups (or redo groups, if Redo was last invoked) in the current event loop. If 0 is returned, there is no open undo or redo group.

or
NSDocument method isDocumentEdited

Magnus Strand

Duncan Campbell wrote:

Hi folks.

I have an NSTextView that i am using as a text-editor. When the contents are changed, i set a flag to say that Edited=True, and use [NSWindow setDocumentEdited:hasChanged] to notify the window that an edit has happened (sets the little dot in the red top-left button).

Now if I do apple+z to undo, then my text-editor is now not edited - however I am not sure how to check this - I am thinking it may be possible to look at the Undo-stack, and if nothing is on it then I can assume that an edit has not happened? Is this a good approach to take? Can anyone offer any advice?

Cheers.

---------------------------------------------------------------
Duncan Campbell
http://www.duncanandsarah.com/duncan
---------------------------------------------------------------

A modem is a baudy house.

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 >Accessing undo stack? (From: Duncan Campbell <email@hidden>)

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