Retrieves the list of group names of the bookmark for @uri.
In the event the URI cannot be found, %NULL is returned and @error is set to #G_BOOKMARK_FILE_ERROR_URI_NOT_FOUND.
The returned array is %NULL terminated, so @length may optionally be %NULL.
a valid URI
Return: a newly allocated %NULL-terminated array of group names. Use g_strfreev() to free it.
GException on failure.
2.12
See Implementation
Retrieves the list of group names of the bookmark for @uri.
In the event the URI cannot be found, %NULL is returned and @error is set to #G_BOOKMARK_FILE_ERROR_URI_NOT_FOUND.
The returned array is %NULL terminated, so @length may optionally be %NULL.