[This is preliminary documentation and subject to change.]
To display video from a broadcast channel specified by the user, your application can do one of two things. It can assign a channel to the device that was set as the input source for video as described in Setting Video Input. Alternatively, your application can tune to a channel in a specific tuning space.
In either case, the result is that a tuning device tunes to the channel and the received video appears on the display surface of the Microsoft® ActiveX® control for video (the Video control). The following topics describe these two ways of tuning to a channel:
If the input source is a tuner, you can set the BPCVid object's VideoOn property in your application to either TRUE or FALSE to display video or to stop video from displaying. To stop a tuner from sending video, your application calls the BPCVid object's Close method.
To locate more information on working with display surfaces, see Further Information on Development Tasks in Broadcast Architecture.