Microsoft.MediaCenter.TVVM Namespace
The TVVM namespace exposes the interfaces needed to build an Interactive TV application.
Members
Classes
| Class | Description |
| FrameFormat | Describes the frame format of the video surface. |
| KeyCommandEventArgs | Describes the event data for key and command events. |
| OverlaySurface | Allows applications to access a drawing surface above the video surface. |
| PlaybackSession | Enables applications to retrieve information about the current playback session. |
| RenderingMode | Enables applications to retrieve information about the rendering mode and coordinate system in which the application runs. |
| StreamInfo | Enables applications to retrieve information about a particular stream. |
| StreamSelector | Enables applications to select streams. |
| Tuning | Enables applications to retrieve information about tuning. |
| TVVMbase | The base class from which all iTVVM applications are derived. |
| VideoSurface | Enables applications to work with the video surface. |
Enumerations
| Enumeration | Description |
| ChannelState | Contains values that indicate whether a tune request is currently in progress. |
| CommandCode | Contains values that describe command codes that Windows Media Center can return. |
| InputModifiers | Contains values that identify which additional key was pressed, if any. |
| KeyboardCommandEventState | Contains values that identify whether further events will be delivered to the application. |
| KeyCommandState | Contains values that indicate whether a key is being pressed. |
| KeyHandlerKey | Contains values that identify which key an event is for. |
| StreamType | Contains values that identify the stream types. |
| ZoomMode | Contains values that identify the zoom modes. |
Delegates
| Delegate | Description |
| KeyCommandEventHandler | Handles the key and command events. |
Exceptions
| Exception | Description |
| TuningFormatException | Thown to indicate that the application issued a tune request with an invalid XML format. |
| TuningInProgressException | Thown to indicate that the application issued a tune request before the prior tune request was completed. |
| TuningSameChannelException | Thrown to indicate that the application issued a tune request to the same channel it currently is tuned to. |
See Also