报警控制在各种工业控制系统中是经常见到的,一般用于报警的方法有很多,有用文本标示,有用图形表示的,其原理不外乎构造CDC类对象然后利用提供的各种基本图元属性进行图形绘制就可以了.这里我们来制作一个能够显示报警文本,当出现某个报警的时候我们然背景进行闪烁就可以实现功能了.-alarm control in a variety of industrial control system is often seen, the general method for alarm are many, useful text label, useful graphics said, its principle either tectonic CDC class object and then using the basic attributes yuan map graphic on it. here we are to produce a report to show text, when there is a report to the police when we ran background flicker on the function can be achieved.