（UWP）XAML Canvas要流式传输

1 回答

• 2

  在UWP上，我建议使用InkCanvas .

  你可以像这样存储Strokes：

  var savePicker = new FileSavePicker();
  savePicker.SuggestedStartLocation = Windows.Storage.Pickers.PickerLocationId.PicturesLibrary;
  savePicker.FileTypeChoices.Add("Gif with embedded ISF", new
  System.Collections.Generic.List<string> { ".gif" }); 
  
  StorageFile file = await savePicker.PickSaveFileAsync();
  if (null != file)
  {
    try
    {
      using (IRandomAccessStream stream = await file.OpenAsync(FileAccessMode.ReadWrite))
      {
        await myInkCanvas.InkPresenter.StrokeContainer.SaveAsync(stream);
      }
    }
    catch (Exception ex)
    {
      GenerateErrorMessage();
    }
  }
  

  资料来源：https://blogs.windows.com/buildingapps/2015/09/08/going-beyond-keyboard-mouse-and-touch-with-natural-input-10-by-10/

  回复于 2024-05-02T15:17:51+08:00