枚举CAD图层
//枚举图层 Acad::ErrorStatus EnumAllLayer(AcDbObjectIdArray& layeIds,AcDbDatabase* pDb=acdbHostApplicationServices()->workingDatabase()) { if(pDb==NULL) return Acad::eNullPtr; AcDbLayerTable *pLayerTable=NULL; Acad::ErrorStatus es=Acad::eOk; if((es=pDb->getSymbolTable(pLayerTable,AcDb::kForRead))!=Acad::eOk) { pLayerTable->close(); return es; } //创建一个层表迭代器 AcDbLayerTableIterator *pLayerTableIterator; if ( (es =pLayerTable->newIterator (pLayerTableIterator) ) != Acad::eOk ) { pLayerTable->close () ; return es; } //取得图层 for(pLayerTableIterator->start ();!pLayerTableIterator->done();pLayerTableIterator->step()) { AcDbObjectId id; es=pLayerTableIterator->getRecordId(id); if(es!=Acad::eOk) continue; layeIds.append(id); } //删除层表迭代器 delete pLayerTableIterator; pLayerTableIterator=NULL; //关闭层表(切记) pLayerTable->close () ; return Acad::eOk; } //枚举图层 Acad::ErrorStatus EnumAllLayer(CStringArray& layeNames,AcDbDatabase* pDb=acdbHostApplicationServices()->workingDatabase()) { if(pDb==NULL) return Acad::eNullPtr; AcDbLayerTable *pLayerTable=NULL; Acad::ErrorStatus es=Acad::eOk; if((es=pDb->getSymbolTable(pLayerTable,AcDb::kForRead))!=Acad::eOk) { pLayerTable->close(); return es; } //创建一个层表迭代器 AcDbLayerTableIterator *pLayerTableIterator; if ( (es =pLayerTable->newIterator (pLayerTableIterator) ) != Acad::eOk ) { pLayerTable->close () ; return es; } //取得图层 for(pLayerTableIterator->start ();!pLayerTableIterator->done();pLayerTableIterator->step()) { AcDbLayerTableRecord *pLayerTableRecord=NULL; es=pLayerTableIterator->getRecord(pLayerTableRecord,AcDb::kForRead); if(es!=Acad::eOk) continue; const ACHAR* pName=NULL; es=pLayerTableRecord->getName(pName); if(es!=Acad::eOk) { pLayerTableRecord->close(); continue; } CString strName=pName; layeNames.Add(strName); //关闭(切记) pLayerTableRecord->close(); } //删除层表迭代器 delete pLayerTableIterator; pLayerTableIterator=NULL; //关闭层表(切记) pLayerTable->close () ; return Acad::eOk; }查看完整版本： 枚举CAD图层
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