I support legacy software that uses MinGW. I have been experiencing an interesting issue on a specific computer. Only happens on that computer. It runs Windows 7 64 bit. I use Codeblocks and today I updated my MinGW to see if that solved the issue. It doesn't. ***Issue*** I send a command via WriteFile to a device. This works just fine. The device then starts returning data in multiple packets which I read asynchronously using ReadFile(). I can use big hefty sleeps to prevent access to the buffer during input. The corruption still happens. On all computers running Windows 10 this works fine. On this specific computer, some of the first bytes of a packet (I've never seen it happen to the first packet) becomes corrupted. **** The only thing I can think of is that the ReadFile call itself is somehow corrupting the data as it comes in (sometimes). Is this possible? Since I use MinGW, I thought I would ask here first. Any ideas as to where I should be looking for my problem? Kat
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