Regarding ACDBGroup

[jignesh.rana]

Hi,

       i made Group of Entities with group name is _BlockLayout using AcDbGroup now i want to get this group with acutbuildlist and move it from one location to another 

   how to do it , any idea ?

[tbrammer]

You have to get all AcDbEntitys within the AcDbGroup and move them individually. The most effective way is to do it like this:

void MoveAllEntitiesInGroup(const AcDbGroup *pMyGroup, AcGeVector3d vOffset)  {
	Acad::ErrorStatus es;
	AcDbObjectIdArray ids;
	pMyGroup->allEntityIds(ids);
	AcDbEntity *pEnt;
	AcGeMatrix3d mat;
	mat.setToTranslation(vOffset);
	for (const AcDbObjectId &id : ids) 	{
		if ( (es=acdbOpenObject(pEnt, id, AcDb::kForWrite)) == Acad::eOk ) {
			es = pEnt->transformBy(mat);
			pEnt->close();
		}		
	}
}

 If you insist on using a resbuf list you can use 

Acad::ErrorStatus acdbGetAdsName(ads_name& objName, AcDbObjectId objId);

to get the ads_names. of the AcDbObjectIds within ids. Than you can and either append them to the resbuf list or build a selectionset.