title: Function Null for variant in Delphi 2010
body: <p>Where is this function in Delphi 2010?</p>
  
  <pre><code>function Null: Variant;
  begin
    _VarNull(TVarData(Result));
  end;
  </code></pre>
  
  <p>in Delphi 6 it was in Variants.</p>