public bool get_boolean (string group_name, string key) throws KeyFileError
Returns the value associated with
group_name as a boolean.
key cannot be found then false is returned and throws is
set to g_key_file_error_key_not_found. Likewise, if the value associated with
key cannot be
interpreted as a boolean then false is returned and throws is set to
a group name
the value associated with the key as a boolean, or false if the key was not found or could not be parsed.