[每日一码] 事物处理中亮显AcDb2dPolyline的顶点

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1. AcTransaction::getObject().
3. Here's a snippet to illustrate:
6. //pPline points to an AcDb2dPolyline open for Read.
7. AcDbObjectIterator *pVertIter= pPline->vertexIterator();
8. AcDbObjectId vertexObjId;
9. //start a transaction
10. AcTransaction *pTrans = actrTransactionManager->startTransaction();
11. assert(pTrans != NULL);
13. //iterate through the oldstyle pline
14. //highlight each segment as you go
15. //numVerts == number of vertices in polyline
16. for (int vertexNumber = 0;  vertexNumber < numVerts - 1;
17.      vertexNumber++, pVertIter->step())
18.      {
19.          vertexObjId = pVertIter->objectId();
20.          ads采用name ename;
21.          acdbGetAdsName(ename, vertexObjId);
23.          ads采用redraw(ename, 3);
24.          //pause for user to see the effect
25.          ads采用getstring(0, "\nPress return to continue: ", dummy);
26.          //always balance ads采用redraw highlight calls in R14
27.          ads采用redraw(ename, 4);
28.      }
29. actrTransactionManager->endTransaction();
30. delete pVertIter;

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