Windows 8 開發入門（十四）：剪貼簿操作全攻略——文字、圖片、HTML、檔案四種格式

Windows 8 DataPackage 支援四種標準資料格式互傳：文字、位圖、HTML、StorageItems（檔案）。本文示範各格式的複製與貼上完整流程。

共用資料封裝物件

DataPackage dp = new DataPackage(); // 中繼載體

1. 文字（Text）

// 複製文字
private void CopyText_Click(object sender, RoutedEventArgs e) {
    dp.SetText(SourceText.Text);
    Clipboard.SetContent(dp);
}

// 貼上文字
private async void PasteText_Click(object sender, RoutedEventArgs e) {
    var content = Clipboard.GetContent();
    if (content.Contains(StandardDataFormats.Text)) {
        TargetText.Text = await content.GetTextAsync();
    }
}

2. 圖片（Bitmap）

// 複製圖片（從專案資產載入）
private async void CopyImage_Click(object sender, RoutedEventArgs e) {
    var uri = new Uri("ms-appx:///Assets/iphone0426_006.jpg");
    var file = await StorageFile.GetFileFromApplicationUriAsync(uri);
    dp.SetBitmap(RandomAccessStreamReference.CreateFromFile(file));
    Clipboard.SetContent(dp);
}

// 貼上圖片
private async void PasteImage_Click(object sender, RoutedEventArgs e) {
    var content = Clipboard.GetContent();
    if (content.Contains(StandardDataFormats.Bitmap)) {
        var streamRef = await content.GetBitmapAsync();
        var stream = await streamRef.OpenReadAsync();
        var bitmap = new BitmapImage();
        bitmap.SetSource(stream);
        TargetImage.Source = bitmap;
    }
}

3. HTML

// 複製 HTML（從 WebView 取得）
private void CopyHtml_Click(object sender, RoutedEventArgs e) {
    var html = HtmlFormatHelper.CreateHtmlFormat(
        SourceHtml.InvokeScript("eval", new[] { "document.documentElement.outerHTML;" }));
    dp.SetHtmlFormat(html);
    Clipboard.SetContent(dp);
}

// 貼上 HTML
private async void PasteHtml_Click(object sender, RoutedEventArgs e) {
    var content = Clipboard.GetContent();
    if (content.Contains(StandardDataFormats.Html)) {
        var html = await content.GetHtmlFormatAsync();
        TargetHtml.NavigateToString(html);
    }
}

4. 檔案

// 複製多個檔案
private async void CopyFile_Click(object sender, RoutedEventArgs e) {
    var files = new List<StorageFile>();
    var uri1 = new Uri("ms-appx:///Assets/iphone0426_006.jpg");
    var uri2 = new Uri("ms-appx:///Assets/iphone0426_010.jpg");
    files.Add(await StorageFile.GetFileFromApplicationUriAsync(uri1));
    files.Add(await StorageFile.GetFileFromApplicationUriAsync(uri2));
    dp.SetStorageItems(files);
    Clipboard.SetContent(dp);
}

// 貼上檔案（複製到文件庫）
private async void PasteFile_Click(object sender, RoutedEventArgs e) {
    var content = Clipboard.GetContent();
    TargetFile.Text = "";
    if (content.Contains(StandardDataFormats.StorageItems)) {
        var items = await content.GetStorageItemsAsync();
        foreach (var file in items) {
            var copied = await file.CopyAsync(KnownFolders.DocumentsLibrary, file.Name, NameCollisionOption.ReplaceExisting);
            TargetFile.Text += $"{file.Name} 已複製到 文件庫\\文件\\{file.Name}\r";
        }
    }
}

前端 XAML 佈局（四組複製/貼上區塊）

<Grid Background="{StaticResource ApplicationPageBackgroundThemeBrush}">
    <!-- 文字區 -->
    <TextBox Name="SourceText" Text="複製源" .../>
    <Button Name="CopyText" Content="複製文字" Click="CopyText_Click" .../>
    <Button Name="PasteText" Content="貼上文字" Click="PasteText_Click" .../>
    <TextBlock Name="TargetText" .../>

    <!-- 圖片區 -->
    <Image Name="SourceImage" Source="Assets/iphone0426_006.jpg" .../>
    <Button Name="CopyImage" Content="複製圖片" Click="CopyImage_Click" .../>
    <Button Name="PasteImage" Content="貼上圖片" Click="PasteImage_Click" .../>
    <Image Name="TargetImage" .../>

    <!-- HTML 區 -->
    <WebView Name="SourceHtml" Source="https://wap.easou.com/" .../>
    <Button Name="CopyHtml" Content="複製 HTML" Click="CopyHtml_Click" .../>
    <Button Name="PasteHtml" Content="貼上 HTML" Click="PasteHtml_Click" .../>
    <WebView Name="TargetHtml" .../>

    <!-- 檔案區 -->
    <Button Name="CopyFile" Content="複製檔案" Click="CopyFile_Click" .../>
    <Button Name="PasteFile" Content="貼上檔案" Click="PasteFile_Click" .../>
    <TextBlock Name="TargetFile" .../>
</Grid>

Manifest 設定（存取文件庫與 .jpg 檔案類型）

參考：文件庫存取權限設定

原始碼下載：Win8ClipBoard2.rar