The major differentiating characteristic of filter effects is that the animated property is one of a filter object, rather than animating a property of the display object.
滤镜效果区别其他效果的一个主要特征是动画的属性是一个Filter对象，而不是动画显示对象的一个属性。
In order for a spawned thread to call back to the Eclipse workbench, it must use methods in the Display object to gain access to the UI thread.
为了使衍生(spawned)线程能够回调eclipse工作台，它必须使用Display对象中的方法才能获得对ui线程的访问。
In order for a spawned thread to call back to the Eclipse workbench, it must use methods in the Display object to gain access to the UI thread.
为了使衍生(spawned)线程能够回调eclipse工作台，它必须使用Display对象中的方法才能获得对ui线程的访问。
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