arx的com接口编写

wxd20130610

可能我没说清楚，我是想利用objectarx扩充activex vba函数库，因为activex中一些函数是没有的，功能不全，但objectarx是个庞大且高效的函数库，因此想到利用arx编写（制作）com接口来供vba调用。

wxd20130610

@风树
您说的没错，正是锁定和解锁文档的问题，现将调试好的源码贴出来：
        acDocManager->lockDocument(acDocManager->curDocument(), AcAp::kWrite, NULL, NULL, true);    //锁定文档
        AcGePoint3d ptStart(0, 0, 0);
        AcGePoint3d ptEnd(100, 100, 0);
        AcDbLine *pLine = new AcDbLine(ptStart, ptEnd);

        AcDbBlockTable *pBlockTable;
        acDocManager->curDocument()->database()->getBlockTable(pBlockTable, AcDb::kForRead);
        //acdbHostApplicationServices()->workingDatabase()->getBlockTable(pBlockTable, AcDb::kForRead);
        AcDbBlockTableRecord *pBlockTableRecord;
        pBlockTable->getAt(ACDB_MODEL_SPACE, pBlockTableRecord,AcDb::kForWrite);
        AcDbObjectId lineId;
        pBlockTableRecord->appendAcDbEntity(lineId, pLine);
        pBlockTable->close();
        pBlockTableRecord->close();
        pLine->close();

        acDocManager->unlockDocument(acDocManager->curDocument()); //解锁文档
        return S_OK;