Behavior of WaitForMultipleObjects when multiple handles signal at the same time

Question

Given: I fill up an array of handles with auto reset events and pass it off to WaitForMultipleObjects with bWaitAll = FALSE.

From MSDN: “When bWaitAll is FALSE, th

Answer 1

Only the auto-reset event that ended the wait (whose index is returned) will be reset. If the wait times out no events will be reset.

cf https://blogs.msdn.microsoft.com/oldnewthing/20150409-00/?p=44273