Function

GLibOptionGroupnew

since: 2.6

Declaration

GOptionGroup*
g_option_group_new (
  const gchar* name,
  const gchar* description,
  const gchar* help_description,
  gpointer user_data,
  GDestroyNotify destroy
)

Description

Creates a new GOptionGroup.

description is typically used to provide a title for the group. If so, it is recommended that it’s written in title case, and has a trailing colon so that it matches the style of built-in GLib group titles such as ‘Application Options:’.

Available since: 2.6

Parameters

name

Type: const gchar*

The name for the option group, this is used to provide help for the options in this group with --help-``name.

The data is owned by the caller of the function.
The value is a NUL terminated UTF-8 string.
description

Type: const gchar*

A description for this group to be shown in --help. This string is translated using the translation domain or translation function of the group.

The data is owned by the caller of the function.
The value is a NUL terminated UTF-8 string.
help_description

Type: const gchar*

A description for the --help-``name option. This string is translated using the translation domain or translation function of the group.

The data is owned by the caller of the function.
The value is a NUL terminated UTF-8 string.
user_data

Type: gpointer

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.

The argument can be NULL.
The data is owned by the caller of the function.
destroy

Type: GDestroyNotify

A function that will be called to free user_data, or NULL.

Return value

Type: GOptionGroup

A newly created option group. It should be added to a GOptionContext or freed with g_option_group_unref().

The caller of the function takes ownership of the data, and is responsible for freeing it.