"Nick Name" wrote:
*) File types
Has this really something to do with the UI library? The fileopen dialog will always show correct file types for you if it is native.
An application that presents an open dialog will have to tell the GUI library to "display just plain text and RTF files by default". When a file is opened, it needs to discover whether it was a text file or an RTF file.
*) Displaying File Names and Extension Hiding
The same. IMO, this has to do with a filesystem abstraction, not with the UI library.
Then why is it part of Apple's GUI toolkits? I think in this case, this file system feature is an important part of the UI experience, and it's probably just a single function. Something like this: displayNameForPath :: String -> IO String #if MACOS displayNameForPath path = .. - don't remember exactly #else displayNameForPath = return . reverse . takeWhile (/= '/') . reverse #endif Cheers, Wolfgang