Applypartialopenfilters(NULL,NULL) does nothing

By Xiaodong Liang

Issue
How do I load all entities in a partially open drawing? According to the documentation, I should call applyPartialOpenFilters(NULL,NULL), however, this does not load anything.

Solution
This is a known issue. You need to specify NULL for the special filter and a layer filter containing all layers of the drawing. The following code does this and loads all entities:

static void partialLoadCommand()
{
    // Just call filterDatabase on the active database
    AcDbDatabase* pDb = 
     acdbHostApplicationServices()->workingDatabase(); 
    if (pDb != NULL && pDb->isPartiallyOpened())
    {
        AcDbLayerFilter layerFilter;
        AcDbLayerTable* pLayerTable;
        Acad::ErrorStatus es;
        if ((es = 
            pDb->getLayerTable(pLayerTable, 
               AcDb::kForRead)) ==
                Acad::eOk)
        {
            AcDbLayerTableIterator* pLayerIterator;
            if ((es = pLayerTable->newIterator
                    (pLayerIterator,
                Adesk::kTrue, Adesk::kTrue)) == 
                         Acad::eOk)
            {
                for(;!pLayerIterator->done();pLayerIterator->step()) 
                {
                    AcDbLayerTableRecord* pL;
                    if ((es =
                        pLayerIterator->getRecord(pL,
                        AcDb::kForRead)) == Acad::eOk) 
                    {
                        const ACHAR* strName;
          if ((es= pL->getName(strName))==Acad::eOk)
                            layerFilter.add(strName);
                        pL->close();
                    }
                }
                delete pLayerIterator;
            }
            pLayerTable->close();
        }
        pDb->applyPartialOpenFilters(NULL,&layerFilter);
    }
}