IRTCIntensityEvent:IDispatch (Windows CE 5.0)
This interface retrieves information about an event of type RTCE_INTENSITY. This type of event is triggered when the intensity level changes on one of the audio devices. Audio intensity is the degree of loudness, or the range of soft and quiet sounds, within a given volume setting. The intensity is set with the IRTCClient::InvokeTuningWizard method.
Methods
The following tables show 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 IRTCIntensityEvent methods.
| Method | Description |
|---|---|
| Level | Gets the level of intensity. |
| Min | Gets the minimum level of intensity. |
| Max | Gets the maximum level of intensity. |
| Direction | Gets the audio device for which the intensity has changed. |
Obtaining a Pointer
When the application's implementation of the IRTCEventNotification::Event method indicates an RTC_EVENT enumeration value of RTCE_INTENSITY, the method's pEvent parameter is an IDispatch pointer for the IRTCIntensityEvent interface.
Remarks
To enable reception of intensity events, the application must call the IRTCClient::EventFilter method and set an event filter mask that includes the RTCE_INTENSITY 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
RTC Client API Interfaces | IDispatch | IDispatch::Invoke | IRTCClient::EventFilter | IRTCClient::InvokeTuningWizard | IRTCEventNotification::Event | IUnknown | RTC_EVENT
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