namespace System.Windows.Forms
{
    public class ItemDragEventArgs : EventArgs
    {
        public MouseButtons Button { get; }

        public object Item { get; }

        public ItemDragEventArgs(MouseButtons button)
        {
            Button = button;
            Item = null;
        }

        public ItemDragEventArgs(MouseButtons button, object item)
        {
            Button = button;
            Item = item;
        }
    }

    public delegate void ItemDragEventHandler(object sender, ItemDragEventArgs e);

}