GtkGSDocSink *gtk_gs_doc_sink_new(void);
void gtk_gs_doc_sink_free(GtkGSDocSink * sink);
void gtk_gs_doc_sink_write(GtkGSDocSink * sink, const gchar * buf, int len);
GtkGSDocSink *gtk_gs_doc_sink_new(void);
void gtk_gs_doc_sink_free(GtkGSDocSink * sink);
void gtk_gs_doc_sink_write(GtkGSDocSink * sink, const gchar * buf, int len);