By default, the Debug property is exDebugLayerDragNothing, so no debug information is displayed during the drag operation. The Debug property specifies debugging information to be shown while dragging the layers. The Debug property should be called during the DragStart event, or whenever debugging information should be displayed. The debugging information includes offsets, angles, values, and so on. Use the Debug property of the Control to display layers in debug mode. During drag operation you can use the RotateAngleValid property to limit the rotation angle.

The following information shows all debug information while dragging the layer: