ObjectARX创建组简单实例之setSelectable

ObjectARX创建组简单实例之setSelectable

效果展示

创建组函数代码

	static Acad::ErrorStatus CreateGroup(const AcDbObjectIdArray objIds,AcDbObjectId &outGroupId,const CString sGroupName=_T("*"),AcDbDatabase *pDb=curDoc()->database())
	{
		if (objIds.length()<1)
		{
			return Acad::eNullObjectId;
		}
		if (pDb == NULL)
		{
			return Acad::eNoDatabase;
		}
		AcDbDictionary *pGroupDic=NULL;
		Acad::ErrorStatus es= pDb->getGroupDictionary(pGroupDic,AcDb::kForRead);
		if (Acad::eOk != es) return es;
		AcDbDictionaryPointer pGroupDicPtr;
		es = pGroupDicPtr.acquire(pGroupDic);
		if (Acad::eOk != es)
		{
			pGroupDic->close();
			return es;
		}
		if (sGroupName != _T("*"))
		{
			es= pGroupDicPtr->getAt(sGroupName,outGroupId);
			if (Acad::eOk == es)
			{
				return Acad::eDuplicateKey;
			}
		}
		es= pGroupDicPtr->upgradeOpen();
		if (Acad::eOk != es) return es;
		AcDbObjectPointer<AcDbGroup> pGroup;
		es=pGroup.create();
		if (Acad::eOk != es) return es;
		es= pGroup->append(objIds);
		if (Acad::eOk != es) return es;
		//设置 可以选择，如果为false，则会没有组选择效果
		es = pGroup->setSelectable(true);
		return pGroupDicPtr->setAt(sGroupName,pGroup,outGroupId);
	}

调用示例

		ads_name ss;
		if (RTNORM != acedSSGet(NULL,NULL,NULL,NULL,ss))
		{
			return;
		}
		AcDbObjectIdArray objIds;
		Adesk::Int32 nLength=0;
		acedSSLength(ss,&nLength);
		for (int i=0;i<nLength;i++)
		{
			ads_name ent;
			acedSSName(ss,i,ent);
			AcDbObjectId objId;
			acdbGetObjectId(objId,ent);
			if (!objId.isNull())
			{
				objIds.append(objId);
			}
		}
		AcDbObjectId groupId;
		Acad::ErrorStatus es = CreateGroup(objIds,groupId,_T("AAAA"));
		if (Acad::eOk != es)
		{
			acutPrintf(_T("\n创建失败，错误码=%s"),acadErrorStatusText(es));			
		}
		else
		{
			acutPrintf(_T("\n创建成功"));
		}