使用ObjectARX从块插入中提取属性标记字符串

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1. #include <TCHAR.H>
3. void ExtractAttributes()
4. {
5. ads采用name ename;
6. ads采用point pt;
8. if(acedEntSel("\nSelect an block: ", ename, pt) != RTNORM)
9. {
10.     acutPrintf("\nError selecting entity.");
11.     return;
12. }
13. AcDbObjectId eId;
14. acdbGetObjectId(eId, ename);
15. AcDbEntity* pEnt = NULL;
17. if (acdbOpenObject(pEnt, eId , AcDb::kForRead) != Acad::eOk)
18. {
19.     acutPrintf("\nError opening entity.");
20.     if(pEnt)
21.       pEnt->close();
22.     return;
23. }
24. if(pEnt->isA() != AcDbBlockReference::desc())
25. {
26.     acutPrintf("\nMust select a block insert.");
27.     pEnt->close();
28.     return;
29. }
30. AcDbBlockReference *pBlkRef = AcDbBlockReference::cast(pEnt);
32. AcDbAttribute *pAtt = NULL;
33. AcDbObjectIterator *pAttIter = pBlkRef->attributeIterator();
34. 采用TCHAR tagName[33], strValue[256];
35. for (pAttIter->start(); !pAttIter->done(); pAttIter->step())
36. {
37.      acdbOpenObject(pAtt, pAttIter->objectId(), AcDb::kForRead);
38.      // get the tag string
39.      采用tcscpy(tagName, pAtt->tag());
40.      acutPrintf("\nBlock Insert Attribute tag is: %s", tagName);
41.      采用tcscpy(strValue, pAtt->textString());
42.      acutPrintf("\nBlock Insert Attribute string value is: %s", strValue);
43.      pAtt->close();
44. }
45. delete pAttIter;
46. pBlkRef->close();
47. }

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