C# Image.BeginInit方法代码示例

        private void OnSelectedItemChanged(IImgObject selectedObj)
        {
            var img = selectedObj as ImgImage;

            if (img != null)
            {
                var imgCtrl = new Image();
                imgCtrl.BeginInit();
                {
                    imgCtrl.Source = img.GetImageSource();
                    imgCtrl.HorizontalAlignment = HorizontalAlignment.Left;
                    imgCtrl.VerticalAlignment = VerticalAlignment.Top;
                }
                imgCtrl.EndInit();

                ImgCanvas.Children.Clear();

                ImgCanvas.Children.Add(imgCtrl);

                ImgCanvas.Width = img.Width;
                this.orgImgWidth = img.Width;

                ImgCanvas.Height = img.Height;
                this.orgImgHeight = img.Height;

                (this.DataContext as ImageDetailViewModel).TargetImage = img;
            }
        }

 public void addt(String url)
 {
     Image image = new Image();
     image.BeginInit();
     image.Source = new BitmapImage(new Uri(url));
     image.EndInit();
     image.Width = 100;
     image.Height = 100;
     image.Stretch = Stretch.Uniform;
     image.HorizontalAlignment = System.Windows.HorizontalAlignment.Left;
     image.VerticalAlignment = System.Windows.VerticalAlignment.Top;
     myg.Children.Add(image);
 }

        /// <summary>
        /// Converts an <see cref="ImageSource"/> into an <see cref="Image"/>.
        /// </summary>
        /// <param name="value">The value produced by the binding source.</param>
        /// <param name="targetType">The type of the binding target property.</param>
        /// <param name="parameter">The converter parameter to use.</param>
        /// <param name="culture">The culture to use in the converter.</param>
        /// <returns>
        /// A converted value. If the method returns null, the valid null value is used.
        /// </returns>
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            var inputImage = value as ImageSource;
            if (inputImage != null)
            {
                var image = new Image();
                image.BeginInit();
                image.Source = inputImage;
                image.EndInit();
                return image;
            }

            return DependencyProperty.UnsetValue;
        }

        public UIElement GetInfoObject(double width)
        {
            if(string.IsNullOrEmpty(Path))
            {
                throw new ArgumentNullException("Path cannot be null");
            }

            var img = new Image();
            img.BeginInit();
            img.Source = new BitmapImage(new Uri("/CozyLauncher.Plugin.Guide;component/" + Path, UriKind.RelativeOrAbsolute));
            img.Stretch = Stretch.Fill;
            img.EndInit();
            img.MaxWidth = width;
            return img;
        }

        public void AddButton(ImageSource imgSrc)
        {
            Image img = new Image();
            img.BeginInit();
            img.Width = BUTTON_SIZE;
            img.Height = BUTTON_SIZE;
            img.Source = imgSrc;
            img.EndInit();

            buttons.Add(img);
            wheelCanvas.Children.Add(img);

            if (IsInitialized)
            {
                refreshButtons();
            }
        }

        private void initializeButtonImages()
        {
            leftButton = new Image();
            leftButton.BeginInit();
            BitmapImage bmp = new BitmapImage(new Uri(@"C:\Users\Kartikeya\Documents\Visual Studio 2010\Projects\Share\Share\left.png", UriKind.Absolute));
            bmp.CacheOption = BitmapCacheOption.OnLoad;
            leftButton.Source = bmp;
            leftButton.EndInit();
            leftButton.Height = 100;
            leftButton.Width = 100;

            galleryButton = new Image();
            galleryButton.BeginInit();
            bmp = new BitmapImage(new Uri(@"C:\Users\Kartikeya\Documents\Visual Studio 2010\Projects\Share\Share\gallery.jpg", UriKind.Absolute));
            bmp.CacheOption = BitmapCacheOption.OnLoad;
            galleryButton.Source = bmp;
            galleryButton.EndInit();
            galleryButton.Height = 100;
            galleryButton.Width = 100;

            rightButton = new Image();
            rightButton.BeginInit();
            bmp = new BitmapImage(new Uri(@"C:\Users\Kartikeya\Documents\Visual Studio 2010\Projects\Share\Share\right.png", UriKind.Absolute));
            bmp.CacheOption = BitmapCacheOption.OnLoad;
            rightButton.Source = bmp;
            rightButton.EndInit();
            rightButton.Height = 100;
            rightButton.Width = 100;

            trashButton = new Image();
            trashButton.BeginInit();
            bmp = new BitmapImage(new Uri(@"C:\Users\Kartikeya\Documents\Visual Studio 2010\Projects\Share\Share\trash.png", UriKind.Absolute));
            bmp.CacheOption = BitmapCacheOption.OnLoad;
            trashButton.Source = bmp;
            trashButton.EndInit();
            trashButton.Height = 100;
            trashButton.Width = 100;
        }

 //change l'image d'un bouton pour le chemin spécifié
 private void SetImage(string path, Button b)
 {
     Image i = new Image();
     i.BeginInit();
     i.Source = new BitmapImage(new Uri(path, UriKind.RelativeOrAbsolute));
     i.EndInit();
     b.Content = i;
 }

        public string ExecuteThread(FileItem item,string infile, string dest, ValuePairEnumerator configData)
        {
            try
            {

            var conf = new OverlayTransformViewModel(configData);
            using (var fileStream = new MemoryStream(File.ReadAllBytes(infile)))
            {
                BitmapDecoder bmpDec = BitmapDecoder.Create(fileStream,
                    BitmapCreateOptions.PreservePixelFormat,
                    BitmapCacheOption.OnLoad);
                WriteableBitmap writeableBitmap = BitmapFactory.ConvertToPbgra32Format(bmpDec.Frames[0]);
                writeableBitmap.Freeze();

                Grid grid = new Grid
                {
                    Width = writeableBitmap.PixelWidth,
                    Height = writeableBitmap.PixelHeight,
                    ClipToBounds = true,
                    SnapsToDevicePixels = true
                };
                grid.UpdateLayout();
                var size = new Size(writeableBitmap.PixelWidth, writeableBitmap.PixelWidth);
                grid.Measure(size);
                grid.Arrange(new Rect(size));

                Image overlay = new Image();
                Image image = new Image { Width = writeableBitmap.PixelWidth, Height = writeableBitmap.PixelHeight };
                image.BeginInit();
                image.Source = writeableBitmap;
                image.EndInit();
                image.Stretch = Stretch.Fill;
                grid.Children.Add(image);
                grid.UpdateLayout();

                string text = "";
                if (!string.IsNullOrEmpty(conf.Text))
                {
                    Regex regPattern = new Regex(@"\[(.*?)\]", RegexOptions.Singleline);
                    MatchCollection matchX = regPattern.Matches(conf.Text);
                    text = matchX.Cast<Match>()
                        .Aggregate(conf.Text,
                            (current1, match) =>
                                item.FileNameTemplates.Where(
                                    template =>
                                        String.Compare(template.Name, match.Value,
                                            StringComparison.InvariantCultureIgnoreCase) == 0).Aggregate(current1,
                                                (current, template) => current.Replace(match.Value, template.Value)));
                }
                TextBlock textBlock = new TextBlock
                {
                    Text = text,
                    Foreground = (SolidColorBrush) new BrushConverter().ConvertFromString(conf.FontColor),
                    FontFamily = (FontFamily) new FontFamilyConverter().ConvertFromString(conf.Font),
                    FontSize = conf.FontSize,
                    Opacity = conf.Transparency/100.00
                };
                if (conf.A11)
                {
                    textBlock.HorizontalAlignment = HorizontalAlignment.Left;
                    textBlock.VerticalAlignment = VerticalAlignment.Top;
                }
                if (conf.A12)
                {
                    textBlock.HorizontalAlignment = HorizontalAlignment.Center;
                    textBlock.VerticalAlignment = VerticalAlignment.Top;
                }
                if (conf.A13)
                {
                    textBlock.HorizontalAlignment = HorizontalAlignment.Right;
                    textBlock.VerticalAlignment = VerticalAlignment.Top;
                }
                if (conf.A21)
                {
                    textBlock.HorizontalAlignment = HorizontalAlignment.Left;
                    textBlock.VerticalAlignment = VerticalAlignment.Center;
                }
                if (conf.A22)
                {
                    textBlock.HorizontalAlignment = HorizontalAlignment.Center;
                    textBlock.VerticalAlignment = VerticalAlignment.Center;
                }
                if (conf.A23)
                {
                    textBlock.HorizontalAlignment = HorizontalAlignment.Right;
                    textBlock.VerticalAlignment = VerticalAlignment.Center;
                }
                if (conf.A31)
                {
                    textBlock.HorizontalAlignment = HorizontalAlignment.Left;
                    textBlock.VerticalAlignment = VerticalAlignment.Bottom;
                }
                if (conf.A32)
                {
                    textBlock.HorizontalAlignment = HorizontalAlignment.Center;
                    textBlock.VerticalAlignment = VerticalAlignment.Bottom;
                }
                if (conf.A33)
                {
                    textBlock.HorizontalAlignment = HorizontalAlignment.Right;
//.........这里部分代码省略.........

        private static Image TileToImage(byte[] tile)
        {
            var stream = new MemoryStream(tile);

            var bitmapImage = new BitmapImage();
            bitmapImage.BeginInit();
            bitmapImage.StreamSource = stream;
            bitmapImage.EndInit();

            var image = new Image();
            image.BeginInit();
            image.Source = bitmapImage;
            image.EndInit();
            return image;
        }

        private void btnAfficherTrombi_Click(object sender, RoutedEventArgs e)
        {
            if (cbFiltre.SelectedItem != null || rbModule.IsChecked.Value == true){
                    CtrlTrombinoscope ctrlTrombi = new CtrlTrombinoscope();

                    List<Stagiaire> listStagiaire = ctrlTrombi.listeStagiaires(filtre);
                    if (listStagiaire.Count == 0)
                    {
                        Label lab = new Label();
                        lab.Foreground = new SolidColorBrush(Colors.Red);
                        lab.FontWeight = FontWeights.Bold;
                        lab.Content = "Pas de stagiaires disponibles.";
                        Grid g = new Grid();
                        g.Children.Add(lab);
                        groupBox2.Visibility = Visibility.Hidden;
                        groupBox3.Visibility = Visibility.Hidden;
                        groupBox4.Visibility = Visibility.Visible;
                        groupBox4.Content = g;

                    }
                    else {
                        groupBox2.Visibility = Visibility.Visible;
                        groupBox4.Visibility = Visibility.Hidden;
                        groupBox3.Visibility = Visibility.Visible;
                        Grid tableauImages = new Grid();
                        int i = 0;
                        int j = 0;
                        int photo = 1;
                        RowDefinition testRow, testRowNomStagiaire;
                        if (gridTrombi.RowDefinitions.Count > 0)
                        {
                            gridTrombi.RowDefinitions.RemoveRange(0, gridTrombi.RowDefinitions.Count);
                        }
                        if (gridTrombi.ColumnDefinitions.Count > 0)
                        {
                            gridTrombi.ColumnDefinitions.RemoveRange(0, gridTrombi.ColumnDefinitions.Count);
                        }
                        foreach (Stagiaire s in listStagiaire)
                        {
                            if (i - 4 == 0)
                            {
                                i = 0;
                                j += 2;
                            }

                            ColumnDefinition testColumn = new ColumnDefinition();
                            testColumn.Width = new GridLength(140);
                            gridTrombi.ColumnDefinitions.Add(testColumn);

                            if (i == 0)
                            {
                                testRow = new RowDefinition();
                                testRow.Height = new GridLength(120);
                                gridTrombi.RowDefinitions.Add(testRow);
                            }

                            gridTrombi.Width = 1000;

                            Image image = new Image();
                            image.BeginInit();

                            TextBox txt = new TextBox();
                            BitmapImage img;
                            try
                            {
                                img = new BitmapImage(new Uri(s._photo));

                            }
                            catch (Exception)
                            {
                                img = new BitmapImage(new Uri("pack://application:,,,/ApplicationENI;component/Images/portrait-vide.jpg"));
                            }

                            image.Source = img;
                            image.Stretch = Stretch.Uniform;
                            TextBox txtBoxTest = new TextBox();
                            txtBoxTest.Background = Brushes.AliceBlue;
                            txtBoxTest.TextAlignment = TextAlignment.Center;
                            txtBoxTest.BorderThickness = new Thickness(0);

                            image.SetValue(Grid.ColumnProperty, i);
                            image.SetValue(Grid.RowProperty, j);
                            txtBoxTest.Text = s._prenom + " " + s._nom;
                            txtBoxTest.SetValue(Grid.ColumnProperty, i);
                            txtBoxTest.SetValue(Grid.RowProperty, j + 1);
                            gridTrombi.Children.Add(image);

                            // redéfinition de la hauteur de ligne pour le nom du stagiaire
                            if (i == 0)
                            {
                                testRowNomStagiaire = new RowDefinition();
                                testRowNomStagiaire.Height = new GridLength(30);
                                gridTrombi.RowDefinitions.Add(testRowNomStagiaire);
                            }

                            gridTrombi.Children.Add(txtBoxTest);

                            i += 1;
                            photo++;
                        }
//.........这里部分代码省略.........

//.........这里部分代码省略.........
			if (BeforeImageAttribute != null)
				{
				BeforeImagePath = GetButtonFileName(BeforeImageAttribute.Value);
				if (!File.Exists(BeforeImagePath))
					{
					throw new Exception("HandleAllButtonPage.CreateThisButton\r\n" +
										"Der File (\"" + BeforeImagePath + "\") für ein Before-Image fehlt");
					BeforeImagePath = null;
					}
				}
			if (AfterImageAttribute != null)
				{
				AfterImagePath = GetButtonFileName(AfterImageAttribute.Value);
				if (!File.Exists(AfterImagePath))
					{
					throw new Exception("HandleAllButtonPage.CreateThisButton\r\n" +
										"Der File (\"" + AfterImagePath + "\") für ein After-Image fehlt");
					AfterImagePath = null;
					}
				}

			int ButtonColumn = Convert.ToInt32(ColumnAttribute.Value);
			int ButtonRow = Convert.ToInt32(RowAttribute.Value);

			if (!String.IsNullOrEmpty(BeforeImagePath))
				{
				beforeImageSource = ConvertFileNameToBitmapImage(BeforeImagePath);
				}
			if (!String.IsNullOrEmpty(AfterImagePath))
				{
				afterImageSource = ConvertFileNameToBitmapImage(AfterImagePath);
				}
			if (RootIsDynamic == false && (afterImageSource == null))
				{
				column2 = new GridLength(1, GridUnitType.Star);
				column3 = new GridLength(1, GridUnitType.Pixel);
				}

			Button rootButton = new Button();
			rootButton.Style = mybuttonstyle;
			rootButton.Tag = ButtonEntry;

			Grid buttonGrid = new Grid();
			buttonGrid.ColumnDefinitions.Add(new ColumnDefinition());
			buttonGrid.ColumnDefinitions.Add(new ColumnDefinition());
			buttonGrid.ColumnDefinitions.Add(new ColumnDefinition());
			buttonGrid.ColumnDefinitions[0].Width = column1;
			buttonGrid.ColumnDefinitions[1].Width = column2;
			buttonGrid.ColumnDefinitions[2].Width = column3;

			Image imagebefore = new Image();
			if (beforeImageSource != null)
				{
				imagebefore.BeginInit();
				imagebefore.MaxHeight = beforeImageSource.Height;
				imagebefore.MaxWidth = beforeImageSource.Width;
				imagebefore.Source = beforeImageSource;
				imagebefore.EndInit();
				}
			imagebefore.Style = beforeImageStyle;

			Image imageafter = new Image();
			if (afterImageSource != null)
				{
				imageafter.BeginInit();
				imageafter.MaxHeight = afterImageSource.Height;
				imageafter.MaxWidth = afterImageSource.Width;
				imageafter.Source = afterImageSource;
				imageafter.EndInit();
				}
			imageafter.Style = afterImageStyle;

			TextBlock textBlock = new TextBlock();
			textBlock.Style = textBlockStyle;
			textBlock.Text = Text;

			buttonGrid.Children.Add(imagebefore);
			buttonGrid.Children.Add(textBlock);
			buttonGrid.Children.Add(imageafter);

			Grid.SetColumn(imagebefore, 0);
			Grid.SetColumn(textBlock, 1);
			Grid.SetColumn(imageafter, 2);

			rootButton.Content = buttonGrid;

			if (RootIsDynamic == true)
				{
				Button_Grid_Root.Children.Add(rootButton);
				}
			else
				{
				Static_Grid_Root.Children.Add(rootButton);
				}

			Grid.SetColumn(rootButton, ButtonColumn);
			Grid.SetRow(rootButton, ButtonRow);

			rootButton.Click += ButtonClickEventHandler;
			}

        private double DrawImage(Canvas canvas, MemoryStream memoryStream, Rect dest, TileInfo tile)
        {
            Image image = images.Find(tile.Index);

            if (image == null)
            {
                image = new Image();
                memoryStream.Seek(0, SeekOrigin.Begin);
                BitmapSource source = BitmapFrame.Create(memoryStream);
                image.BeginInit();
                image.Source = source;
                image.EndInit();
                images.Add(tile.Index, image);
                Canvas.SetZIndex(image, tile.Index.Level);
                image.Opacity = 0;
                AnimateOpacity(image, 0, 1, 600);
            }

            if (!canvas.Children.Contains(image))
                canvas.Children.Add(image);

            Rect destRounded = new Rect(
                new Point(
                    Math.Round(dest.X) - 0.5,
                    Math.Round(dest.Y) - 0.5),
                new Point(
                    Math.Round(dest.X + dest.Width) + 0.5,
                    Math.Round(dest.Y + dest.Height) + 0.5));

            Canvas.SetLeft(image, destRounded.X);
            Canvas.SetTop(image, destRounded.Y);
            image.Width = destRounded.Width;
            image.Height = destRounded.Height;

            image.Visibility = Visibility.Visible;
            return image.Opacity;
        }

		private void ShowBitmapSource (BitmapSource ClipboardContentImage, String ContentFormatParameter)
			{
			Window BitmapWindow = new Window ();
			BitmapWindow.Title = ContentFormatParameter;
			ScrollViewer Scroll = new ScrollViewer ();
			BitmapWindow.Content = Scroll;
			Image BitmapImage = new Image ();
			BitmapImage.BeginInit ();
			BitmapImage.Source = ClipboardContentImage;
			BitmapImage.EndInit ();
			Scroll.Content = BitmapImage;
			BitmapWindow.ShowDialog ();
			}