Bug in Win32file WaitCommEvent ???

[Grant Edwards]

In article <arg6kb$es5$0 at 216.39.172.122>, Bengt Richter wrote:

>>> Sounds like the mask location is safe if you don't call
>>> GetOverlappedResult??

I've added a call to GetOverlappedResult to my Python app, it
hasn't caused problems (nor does it do anything useful).

>>I sure don't know.  I've found examples that don't call GetOverlappedResult
>>and they expect a "delayed" write to *lpfdwEvtMask happen.
>>
> """
>   If the lpo parameter is NULL or the hCommDev handle was opened without specifying
>     the FILE_FLAG_OVERLAPPED flag, WaitCommEvent does not return until one of the specified
>     events or an error occurs. 
> """
> 
> Did the examples use the FILE_FLAG_OVERLAPPED flag and provide
> the lpo parameter for sure? 

Yes.

> Otherwise there is apparently an implicit wait.
> 
>>And I thought it impossible for me to grow to hate Windows even more...
>
> Well, try to make your solutions portable ;-)

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