void Gtk_viewport_set_shadow_type(int ARI, ei_x_buff *XBUF, char *B, int *I){
gboolean Gtk_viewport_set_shadow_type(int ARI, ei_x_buff *XBUF, char *B, int *I){
void Gtk_viewport_set_shadow_type(int ARI, ei_x_buff *XBUF, char *B, int *I){  GtkViewport* object;  GtkShadowType type;  /* no return value */  if ( ! gn_check_arity(XBUF, 2, ARI) ) return;  if ( ! gn_get_arg_object(XBUF, B, I, GTK_TYPE_VIEWPORT, (GObject**)&object) ) return;  if ( ! gn_get_arg_enum(XBUF, B, I, "GtkShadowType", (gint*)&type) ) return;  gtk_viewport_set_shadow_type(object, type);  gn_put_void(XBUF);}