disable CopyBitmapDataObject

samples/ControlCatalog/Pages/ClipboardPage.xaml

@@ -12,7 +12,7 @@
     <Button Click="CopyFilesDataObject" Content="Copy files to clipboard (data object)" />
     <Button Click="PasteFilesDataObject" Content="Paste files from clipboard (data object)" />
 
-    <Button Click="CopyBitmapDataObject" Content="Copy bitmap (CF_DIB, image/bmp) to clipboard (data object)" />
+    <Button Click="CopyBitmapDataObject" Content="Copy bitmap (CF_DIB, image/bmp) to clipboard (data object)" IsEnabled="False" />
     <Button Click="PasteBitmapDataObject" Content="Paste bitmap (CF_DIB, image/bmp) from clipboard (data object)" />
 
     <Button Click="GetFormats" Content="Get clipboard formats" />

samples/ControlCatalog/Pages/ClipboardPage.xaml.cs

@@ -121,10 +121,7 @@ namespace ControlCatalog.Pages
 
         private void CopyBitmapDataObject(object? sender, RoutedEventArgs args)
         {
-            if (TopLevel.GetTopLevel(this)?.Clipboard is { } clipboard)
-            {
-
-            }
+            throw new NotSupportedException();
         }
 
         private async void PasteBitmapDataObject(object? sender, RoutedEventArgs args)