ObjectARX遍历所有的数据库实体，并打印ID和类型名称

AcDbDatabase *m_pDb = acdbHostApplicationServices()->workingDatabase();

AcDbBlockTable *pBlkTbl = NULL;

m_pDb->getBlockTable(pBlkTbl, AcDb::kForWrite);

if (NULL == pBlkTbl)

    return;

AcDbBlockTableRecord *pBlkTblRcd = NULL;

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

pBlkTbl->close();

if (NULL == pBlkTblRcd)

    return;

AcDbBlockTableRecordIterator *pIter;

pBlkTblRcd->newIterator(pIter);

int num = 0;

for (pIter->start();!pIter->done();pIter->step())

{

    AcDbEntity *pEntity;

    pIter->getEntity(pEntity, AcDb::kForWrite);

    acutPrintf(_T("\nname： %s；objectId： %d；"), pEntity->isA()->name(), pEntity->objectId());

    num ++;

    pEntity->close();

}

delete pIter;

acutPrintf(_T("\nTotalNum： %d；"), num);

pBlkTblRcd->close();