FM Transmitter Library Overview
This document provides an overview of the FM Transmitter library.
Purpose
The FM Transmitter allows clients to scan for available frequencies and to set RDS data.
FM Transmitter Library Details
The DLL that provides the functionality and the library to which your code must link is identified below.
Architectural Relationship
The FM Transmitter is part of Multimedia APIs and Frameworks.
See also FM Transmitter Architecture diagram
Description
The FM Transmitter library includes the following main elements:
Transmitter Utility API
This allows a client to access FM Transmitter functionality and it is defined in transmitterutility.h.
Plug-in
This is a replaceable plug-in that provides an FM Transmitter implementation. Symbian provides a default reference plug-in (mmtransmitterhwrmplugin.dll) that implements FM Transmitter functionality using the Hardware Resource Manager (HWRM) client API.
The abstract classes that you can re-implement are in transmitterplugininterface.h.
Transmitter Framework
This is an internal framework that loads the plug-in and allows the Transmitter Utility API to access the FM Transmitter functionality.
Key FM Transmitter Library Classes
The key class is CMMTransmitterUtility.
This class forms the FM Transmitter Utility API that allows applications to control the FM transmitter. The API includes the following:
MTransmitterObserver - FM Transmitter observer class that defines the interface to receive notification of frequency and status changes.
CMMTransmitterScannerUtility - FM Scanner utility class to scan for clear frequencies.
CMMRdsTransmitterUtility - RDS utility class for setting transmitted RDS data.
Using the FM Transmitter Library
You can use the FM Transmitter library to: