Hy,you should ask this question in the ArcObjects forum.But here my solution in Java:import com.esri.arcgis.geometry.Polygon; import com.esri.arcgis.system.JSONReader; import com.esri.arcgis.geodatabase.JSONDeserializerGdb; JSONReader reader = new JSONReader(); reader.readFromString(jsonTxt); JSONDeserializerGdb ds = new JSONDeserializerGdb(); ds.initDeserializer(reader, null); Polygon polygon = (Polygon) ds.readGeometry(esriGeometryType.esriGeometryPolygon);
This should be similar in C++.Tom