code: func (v *TextBuffer) InsertPixbuf(iter *TextIter, pixbuf *gdk.Pixbuf) {
  	C.gtk_text_buffer_insert_pixbuf(v.native(), (*C.GtkTextIter)(iter),
  		(*C.GdkPixbuf)(unsafe.Pointer(pixbuf.Native())))
  }
docs: // InsertPixbuf() is a wrapper around gtk_text_buffer_insert_pixbuf().