PurplePen.AddControlMode.LeftButtonDrag C# (CSharp) Method

        public override void LeftButtonDrag(Pane pane, PointF location, PointF locationStart, float pixelSize, ref bool displayUpdateNeeded)
        {
            Debug.Assert(pane == Pane.Map);

            // Drag is move map.
            controller.InitiateMapDragging(locationStart, System.Windows.Forms.MouseButtons.Left);
        }