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   // Panel Properties
    pPanel.SetBounds(10,10,400,400);
    pPanel.Name := 'test123';
    pPanel.Caption := 'dsfjkhasdklfhasdkljfh';

   // Bitmap: to draw on Panel  ( same Size as Panel)
    pPanel.Bitmap := TBitmap.Create;
    pPanel.Bitmap.Height := pPanel.Height;
    pPanel.Bitmap.Width := pPanel.Width;

   // Panel Background Picture

    // create Bitmap
    Bitmap1 := TBitmap.Create;
    Bitmap1.LoadFromFile('C:\Media-Archiv\Picture\Seifenblase.bmp');

    pPanel.Bitmap.Canvas.Draw(0,0,Bitmap1);

    Bitmap1.Free;