Being an critically important part of web-site and application design and usability, mostly the animations are used to show that something is loading on the background (e.g. Hope this helps provide some alternatives when using InkCanvas in Windows 10 Universal.Loading GIF or, so called loader gif is an animation that indicates a loading process on a web-site or an application. Using (var stream = ())Īwait stream.WriteAsync(pixels, 0, pixels.Length) Var cropBmp = new WriteableBitmap(pixelWidth, pixelHeight) Var pdp = await decoder.GetPixelDataAsync(ĮxifOrientationMode.IgnoreExifOrientation, Var decoder = await BitmapDecoder.CreateAsync(memStream) Using (var memStream = new InMemoryRandomAccessStream())Īwait (memStream) Var pixelHeight = (int)Math.Round(bounds.Height) Var pixelWidth = (int)Math.Round(bounds.Width) Var yOffset = (uint)Math.Round(bounds.Y) Var xOffset = (uint)Math.Round(bounds.X) You just get the strokes from the canvas and then it is saved directly into a memory stream private async Task GetSignatureBitmapCropped() The key thing with this method is notice how with this approach, you don't have to get the pixel bytes as an array first. Private async Task GetSignatureBitmapFullAsync()Īwait stream.WriteAsync(bytes, 0, bytes.Length) įinally, here is an async method that I am using to be able to do a crop on the bitmap if you want to do that. Var bmp = new WriteableBitmap(width, height) Var bytes = ConvertInkCanvasToByteArray()

private WriteableBitmap GetSignatureBitmapFull() Here are sync and async methods that can be called to do this. However, if you now want to generate an image, you use the WriteableBitmap to do so. If all you need is a byte array of the pixels, you are done. Using (var ds = renderTarget.CreateDrawingSession())ĭs.DrawInk(()) Var renderTarget = new CanvasRenderTarget(device, width, Var device = CanvasDevice.GetSharedDevice() Var height = (int)cvsSignature.ActualHeight Var width = (int)cvsSignature.ActualWidth It is provided by Microsoft.Ĭonvert the InkCanvas to a byte array: private byte ConvertInkCanvasToByteArray() Note, for some of this, you will need to add a reference to Win2D.uwp, which can be found on NuGet by searching that exact name. If you don't want to save your InkCanvas to a file or as a GIF, to manipulate it in memory. I know this is an old post but here is how I found to do it for others who might need it.

Windows 10 loading gif png