让Delphi改变系统提示信息，鼠标移动到窗口的方框内，会显示鼠标提示，图标被更换了，编写时放置一个图标，并重新计算提示栏窗体的大小，再将Application.ICON的图标换成其他的图标，绘制提示栏边框，把新类设置为默认的提示栏类。-Delphi to change the system prompt, move the mouse to the window boxes, mouse prompts, icons are replaced, place an icon in the written and re-calculation of the size of the prompt bar form, then Application.ICON icon change to other icons, draw the tooltip border, the new class is set to the default tooltip class.