GOptionFlags

Flags which modify individual options.

Values

ValueMeaning
NONE0

No flags. Since: 2.42.

HIDDEN1

The option doesn't appear in --help output.

IN_MAIN2

The option appears in the main section of the --help output, even if it is defined in a group.

REVERSE4

For options of the G_OPTION_ARG_NONE kind, this flag indicates that the sense of the option is reversed.

NO_ARG8

For options of the G_OPTION_ARG_CALLBACK kind, this flag indicates that the callback does not take any argument (like a G_OPTION_ARG_NONE option). Since 2.8

FILENAME16

For options of the G_OPTION_ARG_CALLBACK kind, this flag indicates that the argument should be passed to the callback in the GLib filename encoding rather than UTF-8. Since 2.8

OPTIONAL_ARG32

For options of the G_OPTION_ARG_CALLBACK kind, this flag indicates that the argument supply is optional. If no argument is given then data of GOptionParseFunc will be set to NULL. Since 2.8

NOALIAS64

This flag turns off the automatic conflict resolution which prefixes long option names with groupname- if there is a conflict. This option should only be used in situations where aliasing is necessary to model some legacy commandline interface. It is not safe to use this option, unless all option groups are under your direct control. Since 2.8.