public async void TakeScreenshotWithDelay()

in XamlControlsGallery/Controls/ControlExample.xaml.cs [249:329]
62 lines of code
6 McCabe index (conditional complexity)

        public async void TakeScreenshotWithDelay()
        {
            // 3 second countdown
            for (int i = 3; i > 0; i--)
            {
                ScreenshotStatusTextBlock.Text = i.ToString();
                await Task.Delay(1000);
            }
            ScreenshotStatusTextBlock.Text = "Image captured";

            // AppRecordingManager is desktop-only, and its use here is quite hacky,
            // but it is able to capture popups (though not theme shadows).

            bool isAppRecordingPresent = ApiInformation.IsTypePresent("Windows.Media.AppRecording.AppRecordingManager");
            if (!isAppRecordingPresent)
            {
                // Better than doing nothing
                TakeScreenshot();
            }
            else
            {
                var manager = AppRecordingManager.GetDefault();
                if (manager.GetStatus().CanRecord)
                {
                    var result = await manager.SaveScreenshotToFilesAsync(
                        ApplicationData.Current.LocalFolder,
                        "appScreenshot",
                        AppRecordingSaveScreenshotOption.HdrContentVisible,
                        manager.SupportedScreenshotMediaEncodingSubtypes);

                    if (result.Succeeded)
                    {
                        // Open the screenshot back up
                        var screenshotFile = await ApplicationData.Current.LocalFolder.GetFileAsync("appScreenshot.png");
                        using (var stream = await screenshotFile.OpenAsync(FileAccessMode.Read))
                        {
                            var decoder = await BitmapDecoder.CreateAsync(stream);

                            // Find the control in the picture
                            GeneralTransform t = ControlPresenter.TransformToVisual(Window.Current.Content);
                            Point pos = t.TransformPoint(new Point(0, 0));
;
                            if (!CoreApplication.GetCurrentView().TitleBar.ExtendViewIntoTitleBar)
                            {
                                // Add the height of the title bar, which I really wish was programmatically available anywhere.
                                pos.Y += 32.0;
                            }

                            // Crop the screenshot to the control area
                            var transform = new BitmapTransform() { Bounds = new BitmapBounds() {
                                X = (uint)(Math.Ceiling(pos.X)) + 1, // Avoid the 1px window border
                                Y = (uint)(Math.Ceiling(pos.Y)) + 1,
                                Width = (uint)ControlPresenter.ActualWidth - 1, // Rounding issues -- this avoids capturing the control border
                                Height = (uint)ControlPresenter.ActualHeight - 1} };

                            var softwareBitmap = await decoder.GetSoftwareBitmapAsync(
                                decoder.BitmapPixelFormat,
                                BitmapAlphaMode.Ignore,
                                transform,
                                ExifOrientationMode.IgnoreExifOrientation,
                                ColorManagementMode.DoNotColorManage);

                            // Save the cropped picture
                            var file = await ApplicationData.Current.LocalFolder.CreateFileAsync(GetBestScreenshotName(), CreationCollisionOption.ReplaceExisting);
                            using (var outStream = await file.OpenAsync(FileAccessMode.ReadWrite))
                            {
                                BitmapEncoder encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.PngEncoderId, outStream);
                                encoder.SetSoftwareBitmap(softwareBitmap);
                                await encoder.FlushAsync();
                            }
                        }

                        // Delete intermediate file
                        await screenshotFile.DeleteAsync();
                    }
                }
            }

            await Task.Delay(1000);
            ScreenshotStatusTextBlock.Text = "";
        }