/// <summary>
/// Called when a drag operation is ongoing, while the mouse pointer is still
/// over the operable part of the drop site for the <code>DropTarget</code>
/// registered with this listener.
/// </summary>
/// <param name="dtde"> the <code>DropTargetDragEvent</code> </param>
public virtual void DragOver(DropTargetDragEvent dtde)
{
}
/// <summary>
/// Called if the user has modified
/// the current drop gesture.
/// </summary>
/// <param name="dtde"> the <code>DropTargetDragEvent</code> </param>
public virtual void DropActionChanged(DropTargetDragEvent dtde)
{
}
