Get the available keys for the metadata on @factory.
Return: a %NULL-terminated array of key strings, or %NULL when there is no metadata. Free with g_strfreev() when no longer needed.
1.4
See Implementation
Get the available keys for the metadata on @factory.
Return: a %NULL-terminated array of key strings, or %NULL when there is no metadata. Free with g_strfreev() when no longer needed.