ObjectARX_命名对象字典

为了使用方便，再此封装了，图形数据库字典项

//绑定命名字典值
bool SetDictdata(const CString& strDictName,const CString strRecord,CString& strDictVal);
//获取命名字典的值
bool GetDictdata(const CString& strDictName,const CString strRecord, CString& strDictVal);

bool CQKQuery::SetDictdata(  const CString& strDictName,const CString strRecord,CString& strDictVal )
{
	// 得到有名对象字典，向其中添加指定的字典项
	AcDbDictionary *pNameObjDict = NULL;
	Acad::ErrorStatus es = m_pDb->getNamedObjectsDictionary(pNameObjDict,AcDb::kForWrite);
	if (Acad::eOk != es || NULL == pNameObjDict)
		return false;

	// 检查所要添加的字典项是否已经存在
	AcDbDictionary *pDict = NULL;
	es = pNameObjDict->getAt(strDictName, (AcDbObject*&)pDict,AcDb::kForWrite);
	if (es == Acad::eKeyNotFound || NULL == pDict)//没有字典项，新建一个
	{
		pDict = new AcDbDictionary;
		AcDbObjectId dictObjId;
		es = pNameObjDict->setAt(strDictName, pDict, dictObjId);
		if (Acad::eOk != es)
		{
			delete pDict;
			pDict = NULL;
			pNameObjDict->close();
			return false;
		}

		AcDbXrecord *pXrec = new AcDbXrecord;
		// 设置扩展记录的内容
		struct resbuf *pRb = NULL;
		pRb = acutBuildList(AcDb::kDxfText, strDictVal,RTNONE);
		if (NULL == pRb)
		{
			delete pXrec;
			pXrec = NULL;
			pDict->close();
			pNameObjDict->close();
			return false;
		}
		pXrec->setFromRbChain(*pRb);
		acutRelRb(pRb);

		AcDbObjectId xrecObjId;
		es = pDict->setAt(strRecord, pXrec, xrecObjId);
		if (Acad::eOk != es)
		{
			delete pXrec;
			pXrec = NULL;
			pDict->close();
			pNameObjDict->close();
			return false;
		}

		pXrec->close();
		pDict->close();
		pNameObjDict->close();
	}
	else//已经存在字典项
	{
		//得到扩展数据
		AcDbXrecord* pXrec = NULL;
		es = pDict->getAt(strRecord, (AcDbObject*&)pXrec, AcDb::kForWrite);
		if (es == Acad::eKeyNotFound || NULL == pXrec)//没有扩展数据
		{
			AcDbXrecord *pXrec = new AcDbXrecord;
			// 设置扩展记录的内容
			struct resbuf *pRb = NULL;
			pRb = acutBuildList(AcDb::kDxfText, strDictVal,RTNONE);
			if (NULL == pRb)
			{
				delete pXrec;
				pXrec = NULL;
				pDict->close();
				pNameObjDict->close();
				return false;
			}
			pXrec->setFromRbChain(*pRb);
			acutRelRb(pRb);

			AcDbObjectId xrecObjId;
			es = pDict->setAt(strRecord, pXrec, xrecObjId);
			if (Acad::eOk != es)
			{
				delete pXrec;
				pXrec = NULL;
				pDict->close();
				pNameObjDict->close();
				return false;
			}

			pXrec->close();
			pDict->close();
			pNameObjDict->close();
		}
		else//有扩展数据
		{
			// 设置扩展记录的内容
			struct resbuf *pRb = NULL;
			pRb = acutBuildList(AcDb::kDxfText, strDictVal,RTNONE);
			if (NULL == pRb)
			{
				pXrec->close();
				pDict->close();
				pNameObjDict->close();
				return false;
			}
			pXrec->setFromRbChain(*pRb);
			acutRelRb(pRb);

			pXrec->close();
			pDict->close();
			pNameObjDict->close();
		}
	}

	return true;
}

bool CQKQuery::GetDictdata( const CString& strDictName,const CString strRecord, CString& strDictVal )
{
	// 得到有名对象字典，向其中添加指定的字典项
	AcDbDictionary *pNameObjDict = NULL;
	AcDbDictionary *pDict = NULL;
	Acad::ErrorStatus es = m_pDb->getNamedObjectsDictionary(pNameObjDict,AcDb::kForRead);
	if (es != Acad::eOk || NULL == pNameObjDict)
		return false;	

	// 检查所要添加的字典项是否已经存在
	AcDbObjectId dictObjId;
	es = pNameObjDict->getAt(strDictName,  (AcDbObject*&)pDict, AcDb::kForRead);
	if (es == Acad::eKeyNotFound || NULL == pDict)
	{
		pNameObjDict->close();
		return false;
	}

	// 得到指定的对象字典
	AcDbXrecord *pXrec = NULL;
	es = pDict->getAt(strRecord, (AcDbObject*&)pXrec, AcDb::kForRead);
	if (es != Acad::eOk || NULL == pXrec)
	{
		pDict->close();
		pNameObjDict->close();
		return false;
	}

	// 得到扩展记录的数据链表并关闭扩展数据对象
	struct resbuf *pRb = NULL;
	es = pXrec->rbChain(&pRb);
	if (es != Acad::eOk || NULL == pRb)
	{
		pXrec->close();
		pDict->close();
		pNameObjDict->close();
		return false;
	}

	strDictVal = pRb->resval.rstring;

	acutRelRb(pRb);
	pXrec->close();
	pDict->close();
	pNameObjDict->close();

	return true;
}

具体用法：

SetDictdata(_T("FLAG"),_T("XRecord"),strId);
GetDictdata(_T("FLAG"),_T("XRecord"),strId);