gpointer g_memory_output_stream_get_data (GMemoryOutputStream *ostream);
gsize g_memory_output_stream_get_size (GMemoryOutputStream *ostream);
gsize g_memory_output_stream_get_data_size (GMemoryOutputStream *ostream);
+gpointer g_memory_output_stream_steal_data (GMemoryOutputStream *ostream);
G_END_DECLS