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Trying to make a workaround for animated GIF in WPF

Posted By:      Posted Date: September 03, 2010    Points: 0   Category :WPF
Hello. I'm trying to make a workaround for displaying, with (semi-)correct delays, an animate gif with partial frames into an Image control from a ReadOnlyCollection<BitmapFrame> (from BitmapDecoder) What I've done so far was load the same file as a System.Drawing.Image, get the delays using GetPropertyItem(0x5100), and trying to recompose the frames. The whole thing runs on a separate Task, which then calls another Task with a TaskScheduler.FromCurrentSynchronizationContext() to update the UI. Here's the relevant code as of posting:         private void AnimateTaskMethod(ReadOnlyCollection<BitmapFrame> bi, CancellationToken ct) { int count = bi.Count; int[] delay = new int[count]; int i = 0; System.Drawing.Image img = null; try { img = System.Drawing.Image.FromFile(FileList[(int)index]); System.Drawing.Imaging.PropertyItem prop = img.GetPropertyItem(0x5100); for (int x = 0; x < count; x++) { delay[x] = 10 * BitConverter.ToInt32(prop.Value, x * 4); if (delay[x] == 0) delay[x] = 100; } } catch { for (int x = 0; x < count; x++) { delay[x] = 1000; } } finally { if (img != null) img.Dispose(); } while (true) { ct.ThrowIfCancellationRequested(); Thread.Sleep(delay[i]); Task UIAnim

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