Bug 2062 - Export as WAV does not remember the previously used setting
Bug 1355 - "Other uncompressed files" does not (visually) update target
file extension according to the chosen "Header" type
Bug 1356 - "Other uncompressed files" forces the default extension for
the format in the exported file
Bug 1381 - Export other uncompressed formats incorrectly assumes max 255
channels
(and possibly others...not the best bugzilla searcher)
It's a bit crude. It always pastes the entire text field, ignoring the
insertion cursor, and ignoring which control really has the focus.
The file dialog, which can call up the Finder, is implemented in the AppKit
so it's not wholly under our control. But I could bolt on an event filter,
after the fashion of CommandManager, to intercept key events.
Perhaps later versions of the toolkit than 10.6 will have a better save dialog
in the AppKit, making this change unnecessary.