MB> Well, I did mention programming complexity for a reason.  You end up 
 MB> having to create another mutex semaphore to protect 
 MB> the timer from being reset once it is started, so then 
 MB> you end up with: (1) a mutex semaphore to serialize 
 MB> data insertion into and extraction from the buffer, 
 MB> (2) an event semaphore to signal that data must be 
 MB> extracted from the buffer, (3) a timer started when 
 MB> data is inserted that expires in order to post the 
 MB> event semaphore which signals the need for extraction, 
 MB> and (4) a mutex semaphore to serialize setting and 
 MB> resetting the timer.

I was confused about what you were up to,  but I think JdeBP cleared it up
for me -- you're not using "wait for something" mode,  which
eliminates step 3 (and therefore 4).

Step #2 can be replaced by a WinPostMsg(),  if a PM program.

Step #2 can be hidden inside of a circular queue, too.



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