ObjectARX属性块参照遍历属性值实例代码

属性块属性值遍历参考代码.

 

		//获取块参照属性
		ads_name ent;
		ads_point pt;
		if (RTNORM != acedEntSel(NULL,ent,pt))
		{
			acutPrintf(_T("\n未选择有效对象!"));
			return;
		}
		AcDbObjectId objId;
		acdbGetObjectId(objId,ent);
		AcDbObjectPointer<AcDbBlockReference> pBlkRef(objId,AcDb::kForRead);
		if (Acad::eOk != pBlkRef.openStatus())
		{
			acutPrintf(_T("\n打开块参照失败,错误码: %s "),pBlkRef.openStatus());
			return;
		}
		//直接获取图块的属性迭代器
		AcDbObjectIterator *pIter=pBlkRef->attributeIterator();
		//无论图块是否有属性,迭代器一般不会为NULL
		if (NULL == pIter)
		{
			acutPrintf(_T("\n获取属性迭代器失败!"));
			return;
		}
		//设置判断是否能获取到属性
		bool bIsAttribBlock=false;
		for (pIter->start();!pIter->done();pIter->step())
		{
			AcDbObjectId attribId=pIter->objectId();
			AcDbObjectPointer<AcDbAttribute> pAttrib(attribId,AcDb::kForRead);
			if (Acad::eOk != pAttrib.openStatus())
			{
				continue;
			}
			//方式一
			/*
			CString strTag;
			strTag=pAttrib->tag();
			CString strValue;
			strValue=pAttrib->textString();
			acutPrintf(_T("\n属性名: %s 属性值: %s"),strTag,strValue);
			*/
			//方式二
			ACHAR *szTag=pAttrib->tag();
			ACHAR *szValue=pAttrib->textString();
			if (szTag!=NULL && szValue!=NULL)
			{
				acutPrintf(_T("\n属性名: %s 属性值: %s"),szTag,szValue);
			}
			else
			{
				acutPrintf(_T("\n获取属性值失败!"),szTag,szValue);
			}
			if (szTag!=NULL)
			{
				acutDelString(szTag);
			}
			if (szValue!=NULL)
			{
				acutDelString(szValue);
			}
			//获取到属性,设置标志
			bIsAttribBlock=true;
		}
		//释放迭代器
		delete pIter;
		if (!bIsAttribBlock)
		{
			acutPrintf(_T("\n该块参照无属性!"));
		}