PictureAt
= new BPicture(*otherPicture.fExtent->PictureAt(i));
err = fExtent->PictureAt(i)->Archive(&pictureMessage, deep);
if (!fExtent->PictureAt(i)->_AssertServerCopy())
BPicture* picture = fExtent->PictureAt(i);
status_t status = PictureAt(i)->Flatten(stream);