利用Application对象事件实现动态设定演示文稿放映内容

Setting PowerPoint＇ s Playing Contents Dynamically Through Applying Events of Application Object

PowerPoint通过Application对象提供了作用于演示文稿、幻灯片和演示文稿窗口等非控件的对象的事件。但是对这些事件的编程与对其他标准控件的事件的编程不同,必须要先在类模块里用WithEvents关键字申明一个Application对象,并在另一个标准模块的初始化例程里实例化该类模块和Application对象,然后才能实现对Application对象的事件的编程。可以利用Application对象的幻灯片放映事件来实现在PowerPoint放映时动态设定放映内容。

PowerPoint has provided events for such non-control objects as presentations, slides and windows. However, Programming on these events is quite different from programming on the standard controls： programming on the events of application objects cannot be conducted until an application object has been declared with the key word WithEvents in a class module and this class module as well as its apphcation object has been referenced in the initialization routine in a standard module. Setting the playing contents dynamically when the presentation is being played can be implemented through applying the playing events of the application object.