Outputting the data from a USB port? (Windows)

I was wondering if the WinAPI or something has a way to get the raw data from a USB device, or something that would lead me in the right direction for this sort of thing.

for example, for an midi device, this data might be the velocity, and which note was hit.

Thank开发者_StackOverflows

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Not directly but you can now use usblib on windows