Reading DWG

[Anonymous]

Hello members,

What I want to know is the differences between reading in current drawing (curDoc()->database()) and reading file as offline using ;
AcDbDatabase *pDb = new AcDbDatabase(Adesk::kFalse);
pDb->readDwgFile(DWGNameToOpen);

AcDbBlockTable *pBlkTbl;
pDb->getSymbolTable(pBlkTbl, AcDb::kForRead);

AcDbBlockTableRecord *pBlkTblRcd;
pBlkTbl->getAt(ACDB_MODEL_SPACE, pBlkTblRcd, AcDb::kForWrite);

pBlkTbl->close();
AcDbBlockTableRecordIterator *pBlkTblRcdItr;
pBlkTblRcd->newIterator(pBlkTblRcdItr);

for (pBlkTblRcdItr->start(); !pBlkTblRcdItr->done(); BlkTblRcdItr->step()) { ...}

I found that the number of etities of reading offline is 2 or 3 times bigger than reading in cuurent doc.

I uses ssget() by filter only "X" in current doc.
How can I get the same result in offline reading.
I tested it using ;
Adesk::Boolean pErasing=pObj->isErased();
if ((pErasing == Adesk::kFalse) && (pEnt->visibility() == AcDb::kVisible)) { .. }
However, I falied to get the correct result.

I would appreciate it if someone advise.

ChangHoon Lee