These identify the various errors that can occur while calling GtkFileChooser functions.
GtkFileChooser
Indicates a duplicate path (e.g. when adding a bookmark).
Indicates a malformed filename.
Indicates an incomplete hostname (e.g. "http://foo" without a slash after that).
Indicates that a file does not exist.
These identify the various errors that can occur while calling
GtkFileChooserfunctions.