:right-sidebar: True

OptionArg
===================================================================

.. currentmodule:: gi.repository.GLib





.. class:: OptionArg
   :no-contents-entry:






The :obj:`~gi.repository.GLib.OptionArg` enum values determine which type of extra argument the
options expect to find. If an option expects an extra argument, it can
be specified in several ways; with a short option: `-x arg`, with a long
option: `--name arg` or combined in a single argument: ``--name=arg``.













Fields
------

.. rst-class:: interim-class

.. class:: OptionArg
   :no-index:
   

   .. attribute:: CALLBACK

      The option provides a callback (of type
      ``GOptionArgFunc``) to parse the extra argument.







   .. attribute:: DOUBLE

      The option takes a double argument. The argument
      can be formatted either for the user's locale or for the "C" locale.
      Since 2.12







   .. attribute:: FILENAME

      The option takes a filename as argument, which will
      be in the GLib filename encoding rather than UTF-8.







   .. attribute:: FILENAME_ARRAY

      The option takes a filename as argument,
      multiple uses of the option are collected into an array of strings.







   .. attribute:: INT

      The option takes an integer argument.







   .. attribute:: INT64

      The option takes a 64-bit integer. Like
      :const:`~gi.repository.GLib.OptionArg.INT` but for larger numbers. The number can be in
      decimal base, or in hexadecimal (when prefixed with ``0x``, for
      example, ``0xffffffff``). Since 2.12







   .. attribute:: NONE

      No extra argument. This is useful for simple flags or booleans.







   .. attribute:: STRING

      The option takes a UTF-8 string argument.







   .. attribute:: STRING_ARRAY

      The option takes a string argument, multiple
      uses of the option are collected into an array of strings.