DWORD help

Stefan Dösinger stefan at codeweavers.com
Sat Oct 25 11:51:03 CDT 2008

> > I have written the following but when I have dwUserIndex as 0,1,2,3
> or
> > any number, doesn't really matter, it always returns
> Not sure why it's not returning ERROR_DEVICE_NOT_CONNECTED for you.
> I'll just point out:
Probably the calling convention is wrong. Usually Windows API functions have
to be declared like this:

DWORD WINAPI XInputGetState(DWORD dwUserIndex, XINPUT_STATE* pState);

The difference is (among others) that the first parameter is passed in the
ECX register instead of the stack

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