uisearchbar iphone how to get string

i have a question regarding uisearchbar for the iphone. How can i get access to the string the user is typing in the search bar and store it in a开发者_Python百科 separate NSString, so it updates for every keystroke entered?

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You setup the UISearchBar delegate to a object that implements the UISearchBarDelegate interface.

The method 'searchBar:textDidChange:' is called whenever the text in the search bar is changed.