Specifying initial directory for NSOpenPanel RunModal?

Seems like I must be overlooking something in documentation.

How do I specify a directory I want to start in when I use runModal with NSOpenPanel.

Some methods are depr开发者_如何学Cecated in 10.6.

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You set this using setDirectoryURL before displaying the panel with beginSheetModalForWindow:completionHandler:

It's specified in the documentation. NSOpenPanel subclasses NSSavePanel so you can use those methods as well.