TTMSFNCMaps.OnRouteCalculatorBeforeDeletePolyline Event
Occurs when route calculator before delete polyline is raised.
API unit family: TMSFNCMaps
Declaring type: TTMSFNCMaps
Inherited from: TTMSFNCCustomMaps
Syntax
OnRouteCalculatorBeforeDeletePolyline: TTMSFNCMapsRouteCalculatorDeletePolylineEvent;