Re: unique identifier of your computer

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#16035

From: Eudy Silva
Date: Sun, 01 Jun 2003 01:30

34 lines
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Hi Mike,

I don't get it. What kind of uniqueness will be
achieved by using a GUID? I mean, how is this going
to be used for protection since the calculated
value is system independent?

Eudy

Mike Collins wrote:
> Hi Mike,
> 
> We do exactly the same thing!  I found the easiest way to generate a unique
> ID is to create a new GUID using the CoCreateGuid function, thus:
> 
>    AnsiString szGUID = NULL;
>    GUID guid;
>    if (CoCreateGuid(&guid)==S_OK)
>    {
>       OLECHAR cBuff[50];
>       ZeroMemory(cBuff, sizeof(cBuff));
>       if ((StringFromGUID2(guid, cBuff, 50))==(MAX_GUID_SIZE+1))
>       {
>          szGUID = AnsiString(cBuff);
>       }
>    }
> 
> Alternatively, you could concatenate together several other pieces of
> information which is specific to the target PC i.e. Computer Name, Domain
> Name, MAC address, IP address etc.
> 
> HTH
> 
> Mike C

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