rendertargetbitmap

Not sure why exactly your code isn’t working. This works: public void WriteToPng(UIElement element, string filename) { var rect = new Rect(element.RenderSize); var visual = new DrawingVisual(); using (var dc = visual.RenderOpen()) { dc.DrawRectangle(new VisualBrush(element), null, rect); } var bitmap = new RenderTargetBitmap( (int)rect.Width, (int)rect.Height, 96, 96, PixelFormats.Default); bitmap.Render(visual); var encoder = new PngBitmapEncoder(); encoder.Frames.Add(BitmapFrame.Create(bitmap)); … Read more