Reads the print settings from @file_name. Returns a new #GtkPrintSettings
object with the restored settings, or %NULL if an error occurred. If the
file could not be loaded then error is set to either a #GFileError or
#GKeyFileError. See gtk_print_settings_to_file().
Reads the print settings from @file_name. Returns a new #GtkPrintSettings object with the restored settings, or %NULL if an error occurred. If the file could not be loaded then error is set to either a #GFileError or #GKeyFileError. See gtk_print_settings_to_file().