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Basic Application Framework Utilities Overview

Basic Application Framework Utilities (BAFL) is a utility library that enables Symbian Developers to use the system resources such as clipboard and file system. It is a complementary interface to the Symbian file system handling functions, and most of the APIs provided by this library requires a session with Symbian file system.

BAFL library details

The DLL that provides the functionality and the library to which your code must link is identified below.

DLL	LIB	Short description
bafl.dll	bafl.lib	Utility library providing APIs to access clipboard data, parse command-line arguments, and so on.

Description

A Symbian application developer can use this library to use the system resources for the most common and frequent tasks such as copying and pasting data, reading files, producing sounds, comparing strings, handling notifications and so on.

APIs

The key classes of BAFL are as follows:

API	Description
CClipBoard	Provides access to the clipboard.
CCommandLineArguments	Provides access to the arguments passed to an application when it is launched from the graphical shell.
CDesCArray	Base class for implementing independent descriptor arrays.
CEnvironmentChangeNotifier	Enables an application to respond to changes in system environment.
RChangeNotifier	Provides a handle to the kernel-side environment change notification service. This service will notify the registered applications of any change in system environment, so that the applications can respond to the change by taking necessary actions.
RIncrMatcherBase	Provides functions for comparing two text buffers.
CBaNamedPlugins	Supports locale-specific translation of plug-in names.
RResourceFile	Provides access to the application resource files.
RStringPool	Provides access to the string pool.
CoeSoundPlayer	Utility class for simple sound playing.
BaSystemSound	Retrieves and modifies the system sounds settings.

Using BAFL

The following tutorials will guide Symbian Developers to use the BAFL utility library for various use-cases supported:

Copying and pasting data from clipboard
Parsing command-line arguments
Creating and managing descriptor arrays
Handling environment change notifications
Comparing text buffers
Displaying names of plug-ins
Reading application resource files
Producing sounds for common events such as messages and errors
Handling pre-defined string constants

Parent topic: Basic Application Framework Library

Related concepts

BAFL Concepts

BAFL Tutorials

BAFL Examples