您的自定义代码可以调用MessageBroker实用工具函数来获得有关消息内容及其在消息流中的当前执行点的信息。

Your custom code can invoke Message Broker utility functions to obtain information about message contents and the current point of execution in the message flow.

youdao

返回一个命中测试代码，指示某个点是否包含在当前视觉样式元素的背景中。

Returns a hit test code indicating whether a point is contained in the background of the current visual style element.

youdao

返回一个命中测试代码，指示该点是否包含在当前视觉样式元素的背景中的指定边界内。

Returns a hit test code indicating whether the point is contained in the background of the current visual style element and within the specified region.

youdao

返回一个命中测试代码，指示该点是否包含在当前视觉样式元素的背景中的指定边界内。

Returns a hit test code indicating whether the point is contained in the background of the current visual style element and within the specified region.

youdao