C#으로 UWP 데스크톱 앱 만들기 3/5: 사진 촬영 및 5초 카운트다운 기능 추가

<Page x:Class="PhotoBooth.MainPage" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="using:PhotoBooth" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"> <Grid> <Grid.RowDefinitions> <RowDefinition Height="*" /> <RowDefinition Height="Auto" /> </Grid.RowDefinitions> <!-- 카메라 프리뷰 --> <CaptureElement x:Name="CameraPreview" HorizontalAlignment="Center" VerticalAlignment="Center" Width="640" Height="480" Grid.Row="0" Tapped="CameraPreview_Tapped"/> <!-- 카운트다운 텍스트 --> <TextBlock x:Name="CountdownText" HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="60" Visibility="Collapsed" Grid.Row="0"/> <!-- 촬영된 사진 표시 --> <Image x:Name="CapturedImage" HorizontalAlignment="Center" VerticalAlignment="Center" Visibility="Collapsed" Width="640" Height="480" Grid.Row="0"/> <!-- 다시 찍기 및 인쇄 버튼 --> <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Bottom" Opacity="0" x:Name="ButtonPanel" Grid.Row="1" Margin="0,10,0,10"> <Button Content="다시 찍기" Click="RetakeButton_Click" Margin="10"/> <Button Content="인쇄" Click="PrintButton_Click" Margin="10"/> </StackPanel> </Grid> </Page>

using System; using System.IO; using System.Runtime.InteropServices.WindowsRuntime; using System.Threading.Tasks; using Windows.Media.Capture; using Windows.Storage.Streams; using Windows.UI.ViewManagement; using Windows.UI.Xaml; using Windows.UI.Xaml.Controls; using Windows.UI.Xaml.Media.Imaging; namespace PhotoBooth { public sealed partial class MainPage : Page { private MediaCapture _mediaCapture; private bool _isPreviewing = true; public MainPage() { this.InitializeComponent(); // 전체화면 모드로 전환 EnterFullScreenMode(); InitializeCameraAsync(); } private void EnterFullScreenMode() { var view = ApplicationView.GetForCurrentView(); view.TryEnterFullScreenMode(); ApplicationView.PreferredLaunchWindowingMode = ApplicationViewWindowingMode.FullScreen; } private async void InitializeCameraAsync() { _mediaCapture = new MediaCapture(); await _mediaCapture.InitializeAsync(); CameraPreview.Source = _mediaCapture; await _mediaCapture.StartPreviewAsync(); } private async void CameraPreview_Tapped(object sender, Windows.UI.Xaml.Input.TappedRoutedEventArgs e) { if (_isPreviewing) { await StartCountdownAndTakePhoto(); } } private async Task StartCountdownAndTakePhoto() { try { CountdownText.Visibility = Visibility.Visible; for (int i = 5; i > 0; i--) { CountdownText.Text = i.ToString(); await Task.Delay(1000); } CountdownText.Visibility = Visibility.Collapsed; await TakePhotoAsync(); } catch (Exception ex) { System.Diagnostics.Debug.WriteLine($"Error in StartCountdownAndTakePhoto: {ex.Message}"); } } private async Task TakePhotoAsync() { try { var renderTargetBitmap = new RenderTargetBitmap(); await renderTargetBitmap.RenderAsync(CameraPreview); var pixelBuffer = await renderTargetBitmap.GetPixelsAsync(); var bitmap = new WriteableBitmap(renderTargetBitmap.PixelWidth, renderTargetBitmap.PixelHeight); using (var stream = bitmap.PixelBuffer.AsStream()) { await stream.WriteAsync(pixelBuffer.ToArray(), 0, (int)pixelBuffer.Length); } CapturedImage.Source = bitmap; CameraPreview.Visibility = Visibility.Collapsed; CapturedImage.Visibility = Visibility.Visible; ButtonPanel.Opacity = 1; _isPreviewing = false; } catch (Exception ex) { System.Diagnostics.Debug.WriteLine($"Error in TakePhotoAsync: {ex.Message}"); } } private void RetakeButton_Click(object sender, RoutedEventArgs e) { ButtonPanel.Opacity = 0; CapturedImage.Visibility = Visibility.Collapsed; CameraPreview.Visibility = Visibility.Visible; _isPreviewing = true; } private void PrintButton_Click(object sender, RoutedEventArgs e) { // 인쇄 기능 구현 예정 } } }