//Here Not Assign IO.Params.
procedure TForm1.Button1Click(Sender: TObject);
var
 bmp : TIEBitmap;
begin
 bmp := TIEBitmap.Create;
  try
   bmp.Read( 'Tulips.jpg' );
   bmp.SwitchTo( ImageEnView1.IEBitmap ); //Here Not Transfer ??
   ImageEnView1.Update;

   ShowMessage( IntToStr( ImageEnView1.IO.Params.OriginalWidth  ) );
   ShowMessage( IntToStr( ImageEnView1.IO.Params.OriginalHeight ) );
  finally
   bmp.Free;
  end;
end;

//Here Normal.
procedure TForm1.Button2Click(Sender: TObject);
begin
 ImageEnView1.IO.LoadFromFile( 'Tulips.jpg' );
 ShowMessage( IntToStr( ImageEnView1.IO.Params.OriginalWidth  ) );
 ShowMessage( IntToStr( ImageEnView1.IO.Params.OriginalHeight ) );
end;

bmp.ParamsEnabled := True;
bmp.Read( 'Tulips.jpg' );