创建匿名组

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1. int acdbAddAnonGrpRet2Lsp()
3. {
5. // TODO: Implement the command
7. resbuf *pArg =acedGetArgs ();
11. struct resbuf *startRb = NULL;
13. AcDbGroup *pGroup = new AcDbGroup();
15. AcDbObjectId grpId;
17. AcDbDictionary *pGroupDict;
19. Acad::ErrorStatus es;
21. AcApDocument *curDoc;
25. //get the group dictionary
27. AcDbDatabase *pDb = acdbHostApplicationServices()->
29.   workingDatabase();
31. if (Acad::eOk == (es = acDocManager->lockDocument(
33.   curDoc=acDocManager->curDocument())))
35.   es = pDb->getGroupDictionary(pGroupDict,AcDb::kForWrite);
39. if (es != Acad::eOk)
41.   return es;
47. //make an anonymous entry
49. if ((es = pGroupDict->setAt(L"*", pGroup, grpId)) ==
51.   Acad::eOk) {
53.   //retrieve its name char *pNam;
55.   pGroup->close();
57. }
61. // create a resbuf with our ObjectID in it
63. struct resbuf *newRb = acutBuildList (RTLONG, grpId, RTNONE);
65. // if ok
67. if (newRb != NULL) {
69.   // if this is the first time we've done this
71.   if (startRb == NULL) {
73.    // then set this as the start
75.    startRb = newRb;
77.   }
79.   // otherwise add it to the end of our list
81.   else {
83.    // create a pointer to the beginning of our resbuf list
85.    struct resbuf *ptr = startRb;
87.    // find the end of our list
89.    while (ptr->rbnext != NULL)
91.     ptr = ptr->rbnext;
93.    // now attach our newly create resbuf to the end
95.    ptr->rbnext = newRb;
97.   }
99. }
103. pGroupDict->close();
105. acDocManager->unlockDocument(curDoc);
109. acedRetList(startRb);
111. acutRelRb(startRb);
113. return (RTNORM);
115. }

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