setIgnoreUnknownOptions
Sets whether to ignore unknown options or not. If an argument is ignored, it is left in the @argv array after parsing. By default, g_option_context_parse() treats unknown options as error.
This setting does not affect non-option arguments (i.e. arguments which don't start with a dash). But note that GOption cannot reliably determine whether a non-option belongs to a preceding unknown option.
Since
2.6
Parameters
ignoreUnknown
true to ignore unknown options, false to produce an error when unknown options are met