IRTCMediaEvent:IDispatch
This interface retrieves information about an event of type RTCE_MEDIA. This type of event is triggered when a media stream starts, stops, pauses, or resumes, or when the media is negotiated.
Methods
The following table shows the methods for this interface in vtable order. This is the order in which the compiler calls the methods. This interface inherits the methods for the IUnknown and IDispatch interfaces.
The following table shows the IDispatch methods.
| Method | Description |
|---|---|
| GetIDsOfNames | Maps a single member name and an optional set of parameter names to a corresponding set of integer dispatch identifiers (DISPIDs). These identifiers can then be used on subsequent calls to IDispatch::Invoke. |
| GetTypeInfo | Retrieves the type information for an object. |
| GetTypeInfo | Retrieves the number of type information interfaces provided by an object, either zero (0) or 1. |
| Invoke | Provides access to properties and methods exposed by an object. |
The following table shows the IRTCMediaEvent methods.
| Method | Description |
|---|---|
| MediaType | Gets the media type that has changed streaming state. |
| EventType | Gets the state of the media stream. |
| EventReason | Gets a reason code for the media event. |
Obtaining a Pointer
When the application's implementation of the IRTCEventNotification::Event method indicates an RTC_EVENT enumeration value of RTCE_MEDIA, the method's pEvent parameter is an IDispatch pointer for the IRTCMediaEvent interface.
Remarks
To enable reception of media events, the application must call the IRTCClient::EventFilter method and set an event filter mask that includes the RTCE_MEDIA event. If the application does not call IRTCClient::EventFilter, it will not receive any events.
Requirements
OS Versions: Windows CE .NET 4.0 and later.
Header: Rtccore.h, Rtccore.idl.
Link Library: Uuid.lib.
See Also
Communications Service | IDispatch | IDispatch::Invoke | IRTCClient::EventFilter | IRTCEventNotification::Event | IUnknown | RTC_EVENT
Last updated on Saturday, April 10, 2004
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