一个用GDI绘制的仪器仪表，能够动态显示其功能，只要稍加改变，就可以用在其他行业领域，

一个用GDI绘制的仪器仪表，能够动态显示其功能，只要稍加改变，就可以用在其他行业领域，-GDI rendering a used instrument, be able to dynamically display and its function, as long as a little change, you can use in other industries and fields,

一个仪表控件的源码,可用于速度\方向等的指示-A source code control instrument can be used to speed \ direction instructions