Re: [PATCH v13 0/5] MR8829: windows.media.playback.mediaplayer: Implement IActivationFactory::ActivateInstance().

[Rémi Bernon (＠rbernon)]

Rémi Bernon (@rbernon) commented about include/windows.media.playback.idl:
> -
>    [propget] HRESULT Current([out, retval] Windows.Media.Playback.MediaPlayer **player);
> -
>    [eventadd] HRESULT MessageReceivedFromBackground(
> -
>        [in] Windows.Foundation.EventHandler<Windows.Media.Playback.MediaPlayerDataReceivedEventArgs *> *value,
> -
>        [out, retval] EventRegistrationToken *token
> -
>    );
> -
>    [eventremove] HRESULT MessageReceivedFromBackground([in] EventRegistrationToken token);
> -
>    [eventadd] HRESULT MessageReceivedFromForeground(
> -
>        [in] Windows.Foundation.EventHandler<Windows.Media.Playback.MediaPlayerDataReceivedEventArgs *> *value,
> -
>        [out, retval] EventRegistrationToken *token
> -
>    );
> -
>    [eventremove] HRESULT MessageReceivedFromForeground([in] EventRegistrationToken token);
> -
>    HRESULT SendMessageToBackground([in] Windows.Foundation.Collections.ValueSet *value);
> -
>    HRESULT SendMessageToForeground([in] Windows.Foundation.Collections.ValueSet *value);
> -
>    HRESULT IsMediaPlaying([out, retval] boolean *value);
> -
>    HRESULT Shutdown();
> - }

As far as I can tell this should be made deprecated. Something like that:

```suggestion:-22+0
    [
        contract(Windows.Foundation.UniversalApiContract, 1.0),
        exclusiveto(Windows.Media.Playback.BackgroundMediaPlayer),
        deprecated("Use MediaPlayer", deprecate, Windows.Foundation.UniversalApiContract, 4.0),
        uuid(856ddbc1-55f7-471f-a0f2-68ac4c904592)
    ]
    interface IBackgroundMediaPlayerStatics : IInspectable
    {
        [deprecated("Use MediaPlayer", deprecate, Windows.Foundation.UniversalApiContract, 4.0), propget] HRESULT Current([out, retval] Windows.Media.Playback.MediaPlayer **player);
        [deprecated("Use MediaPlayer", deprecate, Windows.Foundation.UniversalApiContract, 4.0), eventadd] HRESULT MessageReceivedFromBackground(
            [in] Windows.Foundation.EventHandler<Windows.Media.Playback.MediaPlayerDataReceivedEventArgs *> *value,
            [out, retval] EventRegistrationToken *token
        );
        [deprecated("Use MediaPlayer", deprecate, Windows.Foundation.UniversalApiContract, 4.0), eventremove] HRESULT MessageReceivedFromBackground([in] EventRegistrationToken token);
        [deprecated("Use MediaPlayer", deprecate, Windows.Foundation.UniversalApiContract, 4.0), eventadd] HRESULT MessageReceivedFromForeground(
            [in] Windows.Foundation.EventHandler<Windows.Media.Playback.MediaPlayerDataReceivedEventArgs *> *value,
            [out, retval] EventRegistrationToken *token
        );
        [deprecated("Use MediaPlayer", deprecate, Windows.Foundation.UniversalApiContract, 4.0), eventremove] HRESULT MessageReceivedFromForeground([in] EventRegistrationToken token);
        [deprecated("Use MediaPlayer", deprecate, Windows.Foundation.UniversalApiContract, 4.0)] HRESULT SendMessageToBackground([in] Windows.Foundation.Collections.ValueSet *value);
        [deprecated("Use MediaPlayer", deprecate, Windows.Foundation.UniversalApiContract, 4.0)] HRESULT SendMessageToForeground([in] Windows.Foundation.Collections.ValueSet *value);
        [deprecated("Use MediaPlayer", deprecate, Windows.Foundation.UniversalApiContract, 4.0)] HRESULT IsMediaPlaying([out, retval] boolean *value);
        [deprecated("Use MediaPlayer", deprecate, Windows.Foundation.UniversalApiContract, 4.0)] HRESULT Shutdown();
    }
```