Returns all groups registered for the recently used item info. The array of returned group names will be NULL terminated, so length might optionally be NULL. Since 2.10
a newly allocated NULL terminated array of strings. Use g_strfreev() to free it. [array length=length zero-terminated=1][transfer full]
See Implementation
Returns all groups registered for the recently used item info. The array of returned group names will be NULL terminated, so length might optionally be NULL. Since 2.10