UndoManager for NSApplication
UndoManager for NSApplication
- Subject: UndoManager for NSApplication
- From: Reza Farhad <email@hidden>
- Date: Wed, 17 Jun 2009 00:22:19 +0100
The problem with my situation is that the application might not have a
window up as it has been deleted, so I can not use the NSUndoManager
associated with the window system.
> I would like to have the facility of undoing deleting of a window.
> The best way that I thought I could do this is was to use the
> UndoManager belonging of my NSApplication. However when I try to get
> the undoManager for the application by calling:
>
> [ NSApp undoManager ]
>
> I get a nil pointer.
> Also I could not see any straight forward way of setting an
> undoManager for a NSResponder.
> Any suggestions how I can resolve this issue.
AFAIK, of the NSResponders only NSWindow creates its own
NSUndoManager. Now, any responder on a window will automatically
search up the responder chain for an undo manager, so it should
automatically get the window's.
Keary Suska
Esoteritech, Inc.
"Demystifying technology for your home or business"
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