PictureData
class PictureData {
PictureData(BFile *file);
~PictureData();
bool enumObject(PictureData **);
PictureData *picture_data;
PictureData::PictureData(BFile *file)
PictureData::~PictureData()
PageData::enumObject(PictureData **picture_data)
*picture_data = new PictureData(fFile);