[issue2745] Add support for IsWow64Process

[Martin v. Löwis]

Martin v. Löwis <martin at v.loewis.de> added the comment:

I think this can be just as well done with (untested, as I don't have
access to a Windows system right now)

def iswow64():
    if platform.getarchitecture()[0] == '64-bit':return False
    return os.environ["PROCESSOR_ARCHITECTURE"] != "x86"

IOW, it's wow64 iff it's a 32-bit Python not running on an x86 machine.

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