Delphi Magazine Collection 2001/Delphi Magazine Collection 20001 (2001).iso/DISKS/Issue70/system/Listing2.pas

Pascal/Delphi Source File | 2001-05-02 | 523b | 18 lines

var
  libuuidHandle: Pointer;
  uuid_generate_time: procedure (out Guid: TGUID) cdecl;
function CreateGUID (out Guid: TGUID): HResult;
const
  E_NOTIMPL = HRESULT($80004001);
begin
  Result := E_NOTIMPL;
  if libuuidHandle = nil then begin
    libuuidHandle := dlopen ('libuuid.so.1', RTLD_LAZY);
    if libuuidHandle = nil then Exit;
    uuid_generate_time := dlsym (libuuidHandle, 'uuid_generate_time');
    if @uuid_generate_time = nil then Exit;
  end;
  uuid_generate_time (Guid);
  Result := 0;
end;