panel:directoryDidChange:

An array of filename extensions or UTIs that represent the allowed file types for the panel.

Returns the required file type (if any).

Specifies the file type (as an extension) or a UTI.

Sets the current pathname in the panel’s browser.

Presents a Save panel as a sheet with a specified path and, optionally, a specified file in that path.

Initializes the panel to the directory and file specified, if any, then displays it and begins its modal event loop.

Controls the ordering of files presented by the NSSavePanel object specified.

Gives the delegate the opportunity to validate selected items.

Gives the delegate the opportunity to filter items that it doesn’t want the user to choose.

Returns the absolute pathname of the directory currently shown in the panel.

Returns the absolute pathname of the file currently shown in the panel.

This method has been deprecated.

Tells the delegate that the user changed the selected directory to the directory located at the specified URL.