/// <summary>
// 从指定元素获取 DragDeltaCommand 依赖项属性的值。
/// </summary>
/// <param name="obj">The element from which the property value is read.</param>
/// <returns>DragDeltaCommand 依赖项属性的值</returns>
public static ICommand GetDragDeltaCommand(ColorPointVisual obj)
{
return((ICommand)obj.GetValue(DragDeltaCommandProperty));
}
