setActionName: method purpose for NSUndoManager class

setActionName: method description says that it set the action name for undo or redo command. But, my doubt is how th开发者_StackOverflowe undomanager use the action name set by the above method.

Regards, iSight

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The setActionName: method only changes the label on the Undo and Redo menu items. So, if you use

[undoMgr setActionName:@"Cut"]

the label of the Undo menu item will change to Undo Cut.