Does someone has experience with the NSUndoManager ?

Wolfram · **Joined:** Thu May 30, 2013 4:39 pm **Posts:** 524

Does someone has an example to work with the OSX internal Undo function?
Lets say I have an array with four values. How can I undo/redo the data of these array?

wilbert · **Posted:** Sat Nov 30, 2019 3:10 pm

Wolfram wrote:

Does someone has an example to work with the OSX internal Undo function?
Lets say I have an array with four values. How can I undo/redo the data of these array?

Do you mean a normal array or a NSArray ?
I believe this undo function only works with objects and not with a PureBasic array.

Wolfram · **Joined:** Thu May 30, 2013 4:39 pm **Posts:** 524

wilbert wrote:

Do you mean a normal array or a NSArray ?
I believe this undo function only works with objects and not with a PureBasic array.

Hi Wilbert,
well for the beginning an an NSArray is ok.
Maybe we could use an pb pointer to read the NSArray more easy inside of pb?
*myNSArray[1]\value

wombats · **Joined:** Thu Dec 29, 2011 5:03 pm **Posts:** 594

I know this isn't what you're asking, but if you don't want to mess with OS specific stuff and want a cross-platform system, srod's Demento is really good.

Forum topic: https://www.purebasic.fr/english/viewtopic.php?f=12&t=42867
Download: http://backup.rsbasic.de/?file=Demento.zip

wilbert · **Posted:** Sun Dec 01, 2019 7:06 am

Wolfram wrote:

well for the beginning an an NSArray is ok.
Maybe we could use an pb pointer to read the NSArray more easy inside of pb?
*myNSArray[1]\value

I looked at it but find it hard to understand how to use it.

You have to provide specific methods so the undo manager knows how to redo something.

Wolfram · **Joined:** Thu May 30, 2013 4:39 pm **Posts:** 524

wilbert wrote:

I looked at it but find it hard to understand how to use it.

Ok, if YOU say it is hard to understand it is no shame for me to give up. ;-)

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Does someone has experience with the NSUndoManager ?

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