I'm working on a ArcGIS Runtime 10.2.6 Qt Widgets Application
Is it possible to load tiles of XYZ format in a layer?
The tiles are in a local directory structure
Yes you should be able to use the TiledMapServiceLayer ArcGIS Runtime SDK for Qt C++ API: EsriRuntimeQt::TiledMapServiceLayer Class Reference or the TileHandler ArcGIS Runtime SDK for Qt C++ API: EsriRuntimeQt::TileHandler Class Reference