DIO Control Code Needed

Does any one have the constant value of IOCTL_STORAGE_GET_MEDIA_SERIAL_NUMBER for use with the dll impo开发者_如何学Crt in a C# class? I was told the constants are in WinIoCtl.h, but they are nowhere to be found.

If someone could provide it, it would be appreciated greatly.

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From WinIoCtl.h that comes with Windows SDK v5.0:

#define CTL_CODE( DeviceType, Function, Method, Access ) (                 \
    ((DeviceType) << 16) | ((Access) << 14) | ((Function) << 2) | (Method) \
)

#define METHOD_BUFFERED                 0

#define FILE_ANY_ACCESS                 0

#define FILE_DEVICE_MASS_STORAGE        0x0000002d

#define IOCTL_STORAGE_BASE FILE_DEVICE_MASS_STORAGE

#define IOCTL_STORAGE_GET_MEDIA_SERIAL_NUMBER CTL_CODE(IOCTL_STORAGE_BASE, 0x0304, METHOD_BUFFERED, FILE_ANY_ACCESS)

So it's 2952208 or 0x2d0c10.