a clock : ActiveX controls and the application of principle. ActiveX controls in...

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一个时钟程序：ActiveX控件的应用与工作原理。ActiveX控件的编写，如何为控件安排属性，方法，事件，属性页，持久性存储，控件如何通知容器自身属性的改变。-a clock : ActiveX controls and the application of principle. ActiveX controls in the preparation, how to control arrangements for the properties, methods, events, properties page, persistent storage, Controls to inform their own containers attribute changes.