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One can use a CRITICAL_SECTION variable to get mutual exclusion.
My question is: does CRITICAL_SECTION support copying? If I pass one by value to another thread, can I know for sure that mutual exclusion will work?
I wouldn’t be surprised if the answer is “you cannot do that”, but it’d be nice to have some sort of official confirmation. I wasn’t able to find a statement either way in the documentation.
No. A
CRITICAL_SECTIONcannot be copied. MSDN states this explicitly: