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Create a GUID at runtime

 

comments1 comments. Current rating: 4 stars (1 votes). Leave comments and/ or rate it.

You may need to create a GUID at runtime. One reason could be to simply have a unique number that identifies each workstation.
By the way the last group of digits in the GUID generated on a computer is its network card number (if any is present).
Delphi does not have the needed definitions, here they are:

function CoCreateGuid (pGUID : TGUID) : longint; 
  external 'OLE32.DLL';

procedure TForm1.FormCreate(Sender: TObject);
var
  udtGUID : TGUID;
  lResult : longint;
begin
  lResult := CoCreateGuid(udtGUID);
  // see definition of TGUID in Delphi's online help
  // udtGUID.D4 = network card's number
end;

Comments:

2008-10-28, 06:55:18
anonymous from United Kingdom  
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