Target applications can then subscribe to the queue and obtain the message using either the read or receive function.
然后，目标应用程序可以订阅这个队列，并使用读取或接收函数获得消息。
When adding a widget, if you aren't authorized to use its function, you'll receive a warning message.
添加小部件时，如果没有授权您使用其功能，您将接收到警告消息。
The receive method blocks until a message appropriate to the function block that's passed in to it is received.
receive方法将阻塞，直到接收到对于功能块合适的消息。
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