OptionGroup.this

Creates a new #GOptionGroup.

Parameters

name string: the name for the option group, this is used to provide help for the options in this group with --help-@name
description string: a description for this group to be shown in --help. This string is translated using the translation domain or translation function of the group
helpDescription string: a description for the --help-@name option. This string is translated using the translation domain or translation function of the group
userData void*: user data that will be passed to the pre- and post-parse hooks, the error hook and to callbacks of %G_OPTION_ARG_CALLBACK options, or %NULL
destroy GDestroyNotify: a function that will be called to free @user_data, or %NULL
Return: a newly created option group. It should be added to a #GOptionContext or freed with g_option_group_unref().

ConstructionException GTK+ fails to create the object.