Hard to say. Sometimes Apple&#x27;s OS is just legitimately missing the feature (I&#x27;m reminded of the tricks needed to have one process render into another process&#x27;s window before QuickTime needed that feature for 10.6).<p>Honestly, I&#x27;m surprised more people aren&#x27;t responding &quot;Wait, why _isn&#x27;t_ this possible in iOS? Windows has had the necessary tools to do this for years.&quot;