Question

I have image in System.Drawing.Image object and I need to create an ImageBrush object (used for Fill property of Rectangle in WPF for example) from it. I guess there should be a way to do this, but I can’t find one.

Answer 1

      var image = System.Drawing.Image.FromFile("..."); // or wherever it comes from
      var bitmap = new System.Drawing.Bitmap(image);
      var bitmapSource = Imaging.CreateBitmapSourceFromHBitmap(bitmap.GetHbitmap(),
                                                                            IntPtr.Zero,
                                                                            Int32Rect.Empty,
                                                                            BitmapSizeOptions.FromEmptyOptions()
            );
      bitmap.Dispose();
      var brush = new ImageBrush(bitmapSource);          

This solution, however, doesnt free the memory of the handle. For information on how to remove the memory leak see WPF CreateBitmapSourceFromHBitmap() memory leak