The file chooser will terminate and accept the user’s choice of a file name.
The file chooser will present its stock dialog to confirm about overwriting an existing file.
The file chooser will continue running, so as to let the user select another file name.
Used as a return value of handlers for the #GtkFileChooser::confirm-overwrite signal of a #GtkFileChooser. This value determines whether the file chooser will present the stock confirmation dialog, accept the user’s choice of a filename, or let the user choose another filename.