CreateDrawingEngine
ObjectDeleter<DrawingEngine> const layerEngine(layerInterface.CreateDrawingEngine());
fDriver(interface != NULL ? interface->CreateDrawingEngine() : NULL)
workspace, this, fDesktop->HWInterface()->CreateDrawingEngine());
ObjectDeleter<DrawingEngine> engine(interface.CreateDrawingEngine());
virtual DrawingEngine* CreateDrawingEngine();
virtual DrawingEngine* CreateDrawingEngine();