ImageMagick.MagickImage.ToBitmap C# (CSharp) Method

    public Bitmap ToBitmap()
    {
      if (ColorSpace == ColorSpace.CMYK)
        ColorSpace = ColorSpace.sRGB;

      string mapping = "BGR";
      PixelFormat format = PixelFormat.Format24bppRgb;
      if (HasAlpha)
      {
        mapping = "BGRA";
        format = PixelFormat.Format32bppArgb;
      }

      using (PixelCollection pixels = GetPixels())
      {
        Bitmap bitmap = new Bitmap(Width, Height, format);
        BitmapData data = bitmap.LockBits(new Rectangle(0, 0, Width, Height), ImageLockMode.ReadWrite, format);
        IntPtr destination = data.Scan0;
        for (int y = 0; y < Height; y++)
        {
          byte[] bytes = pixels.ToByteArray(0, y, Width, 1, mapping);
          Marshal.Copy(bytes, 0, destination, bytes.Length);

          destination = new IntPtr(destination.ToInt64() + data.Stride);
        }

        bitmap.UnlockBits(data);
        return bitmap;
      }
    }

 private static void Test_ToBitmap(MagickImage image, ImageFormat format)
 {
   using (Bitmap bmp = image.ToBitmap(format))
   {
     Assert.AreEqual(format, bmp.RawFormat);
   }
 }