fill listbox with images

Easy impl of helper.openImage and helper.resizeImage
            // Open Image and return it - does not change size,etc.
            public Image openImage(string path)
            {
                  try
                  {
                        Bitmap bmp = new Bitmap(path);
                        m_img = (Image)bmp;
                        return m_img;
                  }
                  catch(Exception ex)
                  {
                        MessageBox.Show(ex.Message+"Path:"+path);
                        return (Image)null;
                  }
                  
            }
            public void resizeImage(Image src_image,ref Image newImg,Size size)
            {
                Bitmap bitmap = new Bitmap(size.Width, size.Height,src_image.PixelFormat);
                  Graphics new_g = Graphics.FromImage(bitmap);
                  new_g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
                  new_g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
                  new_g.DrawImage(src_image, 0, 0, bitmap.Width, bitmap.Height);
                  newImg = (Image)bitmap;
                  new_g.Dispose();                  
            }