Cannot print text with style from Rich Edit Box

1. I used Print API of Window RT API to print canvas but it cannot print text with style from Rich Edit Box. Is there any way to print text with style?


2. To workaround, we used Render Target Bitmap to render RichEditBox to a image and add it to canvas. The problem is it cannot run through RenderAsync() method. I think it need to be deferred to wait RenderAsync() but I cannot find any deferral for Print. Do you have any ideas about it?