Hi Tatyana
Welcome to Wine.
Wine has a test suite to make sure, that new code is correct.
Example, what you never tested:
> - if(!pDeviceName) {
> + if(!pDeviceName && !*pDeviceName) {
Your code will crash, when pDeviceName is NULL.
I expect, you want to use a logical OR, but i did not test such a code change.
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By by ... Detlef