实时显示鼠标的位置，并在前面板显示出来计算的位置-Real-time display position of the mouse, and the front panel displays the calculated position

本函数集的作用，是用户可以 在程序运行时，任意拖动前面板控件，改变布局。-The role of this function is set, the user can program is running, any drag on the front panel controls, changing the layout.

拖拽控件的移动操作，使用注册事件完成，效果比较好-Drag and drop controls mobile operations, use of a registered event is complete, the results were better