How could get scsi HDD serial number?

I wanna get the serial number of a scsi harddisk, but it makes an error! I work with VC++ on Microsof开发者_如何转开发t Windows XP.

What must i do for that?

Take a look here to find out how to query WMI using C++: http://msdn.microsoft.com/en-us/library/aa394558%28VS.85%29.aspx

You'll need to look in Win32_DiskDrive for the disk and then retrieve the SerialNumber value.