Obtener la dirección MAC (Mac Address)

Como obtener la dirección MAC (dirección de la tarjeta Ethernet) ...

Uso:

direccion = MacAddress()

FUNCTION MacAddress
Local pGUID,rGUID,lnSize
Declare integer CoCreateGuid in 'OLE32.dll' ;
  string @pguid
Declare integer StringFromGUID2 in 'OLE32.dll' ;
  string rguid, string @lpsz, integer cchMax
pGUID=replicate(chr(0),16)
rGUID=replicate(chr(0),80)

If "5." $ OS() && 2000/XP
  Declare integer UuidCreateSequential in 'RPCRT4.dll'  string @ Uuid
  Return substr( iif( UuidCreateSequential(@pGUID) = 0 ;
    and StringFromGUID2(pGUID,@rGUID,40) # 0, ;
    StrConv(left(rGUID,76),6), "" ), 26,12)
Else
  Return substr( iif( CoCreateGuid(@pGUID) = 0 ;
    and StringFromGUID2(pGUID,@rGUID,40) # 0, ;
    StrConv(left(rGUID,76),6), "" ), 26,12)
Endif

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