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Similarly, Notification:
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The NOTIFICATION function is used by a receiving thread. It receives the notification code, thread number, and parameter passed by the sending thread’s NOTIFY statement. NOTIFICATION returns FALSE (0) if the EVENT() function returns an event other than EVENT:Notify. If EVENT:Notify is posted, NOTIFICATION returns TRUE. Because calls to NOTIFY and NOTIFICATION are asynchronous, the sender thread can be closed already when receiver thread accepts the EVENT:Notify event. |
So my background threads can use Notify to tell the UI thread it needs to redisplay some progress information. And I can update that progress information via an object I share between the UI and the background threads.
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