Hi,

I'm trying to use the PlayTo functionality in my metro app using the Media Player last release (Preview 2), but when I set the PlayTo source request, I fall into a threading exception, that seems to be raised by the PlayToSource property:

The application called an interface that was marshalled for a different thread. (Exception from HRESULT: 0x8001010E (RPC_E_WRONG_THREAD)) 

at Windows.UI.Xaml.DependencyObject.GetValue(DependencyProperty dp) 
at Microsoft.PlayerFramework.MediaPlayer.get_PlayToSource()

Thinking that was because of my app, I switched to Microsoft's PlayTo sample and tried it on that: the sample works fine, but when I replace the Xaml Media Player with the PlayerFramework one it raises the above exception again.

Is there any known issue on that? Any workaround?

Thanks for your help,

Nicola

Nicola, I see the PlayTo sample on MSDN added a note about needing to use a dispatcher when accessing the PlayTo sample. The fundamental issues is that MediaPlayer.PlayToSource is a dependency property and dependency properties can only be accessed from the UI thread.

I'm not sure why MediaElement would work however because it also uses a dependency property. Please try the dispatcher trick and let me know if you still have problems.

Regards,

Tim